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Fig. 1b. The strict consensus tree of the three trees output by Hennig86 procedures “ie*; nelsen;”, after exclusion of the synonymized taxa from the matrix.
0, simple; 1, emarginate.
Character 31 - Male genitalia: base of phallus ventrally
0, simple; 1, with a ventrobasal projection.
Character 32 – Phallobase
0, elongate, oblong to oval; 1, hemispherical.
Character 33 – Phallobase
0, elongate, oblong to oval; 1, transverse.
Character 34 – Valvifers
0, separate; 1, basally coalescent to each other.
Character 35 - Female genital ducts: proximal vaginal
glands
0, widely attached to vagina at its proximal portion; 1,
attached to vagina by filaments.
58
Character 36 - Length of antennomere 3
0 - short, as long as 2; 1 - at least 1.3 times longer than
2, but shorter than 4; 2 - as long as 4.
Character 37 - Primary and secondary elytral costae
0 - at least very weakly distinguished; 1 - not distin
guished at all.
Character 38 - Male antennae
0 - simply filiform or flabellate; 1 - only antennomere
7 with a lamella.
Character 39 - Male antennae
0 – filiform; 1 – acutely serrate to flabellate
Character 40 - Colour of terminal antennomere
0 – black; 1 – yellow.
Figs 2–4: 2 – The first of three minimum-length trees accomplished by Hennig86 “ie” command with bootstrap percentiles for all
monophyletic groups; 3 – “Jackboot” values for all monophyletic groups of the first of minimum-length trees accomplished by Hennig86 “ie” command; 4 – The third of three minimum-length trees accomplished by Hennig86 “ie” command. The tree of the same
topology was obtained by successive weighting.
Character 41 – Phallus
0 - simple medially; 1 - strongly hooked dorsally in
median portion.
Character 42 – Longitudinal hole in distal half of
aedeagus
0 – absent; 1 – present.
Character 43 – Aedeagus
0 - without a lateral dent; 1 - with a lateral dent.
Character 44 - Orificial sclerite of aedeagus
0 – absent; 1 – present.
Phylogenetic analysis
The analysis of data matrix given in tab. 1 using commands “mh*; bb*;” yielded over 3058 most parsimonious
cladograms (overflow) of 55 steps length, a CI of 63 and
RI of 81. When the strict consensus tree was generated
using the nelsen command, the resultant cladogram (Fig.
1a) was of 75 steps length, a CI of 46 and RI of 63. The
consensus tree is much longer than the most parsimonious
trees because many branches collapsed due to ambiguous
support. The matrix encompasses many unknown character states coded by “?” (as only one sex of many taxa is
known), and therefore the consensus tree contains a large
unresolved polytomy of terminal taxa belonging to tribes
59
Figs 5–14: 5 – Falsocalleros particularis, dorsal view. 6–14: Head. 6–8: Plateros planatus; 9–10: Libnetis piceovittatus; 11–12:
Dihammatus sp. (Mindanao); 13–14: Lyponia himalejica. Scale = 0.5 mm.
Libnetini and Platerodini. Only Libnetomimus and Pseudoplateros can be synonymized as a result of the analysis
of the whole data matrix (Fig. 1a).
Afterwards, all the synonymized taxa were excluded
from the matrix as well as relevant characters (ch 37–44),
and the genus Plateros was represented only by one
taxon, similarly as remaining taxa in the matrix. The
reason for deleting these taxa is explained in previous
section.
The reduced matrix included taxa Dictyoptera, Taphes,
Lygistopterus, Lyponia, Microlycus, Calolycus Teroplas,
Falsocalleros, Plateros, Cavoplateros, Dihammatus, Libnetis, Libnetisia, and characters 0–36 of the matrix given
60
in tab. 1. The analysis of reduced data matrix using
implicit enumeration option yielded 3 most parsimonious
cladograms of 37 steps length, a CI of 62 and RI of 68
(trees 1 and 3 – Figs 3, 4; 2nd tree was of the same
topology as in fig. 4, except the positions of outgroup
taxa Lygistopterus and Taphes which are reversed). The
strict consensus tree using the nelsen command yielded in
two steps longer cladogram of CI–58, RI-64 (Fig. 1b),
where the position of genera Calolycus and Microlycus is
unresolved. If the successive weighting was applied, the
same procedure yielded in single cladogram of the same
topology as in Fig. 4, where genera Calolycus and Microlycus form a monophyletic group.
Figs 15–28: Male basal antennal segments. 15 – Plateros gorhami (Pic); 16 – Plateros brasiliensis (Lucas); 17 – Teroplas fusculus; 18 – Teroplas oculatus; 19 – Cavoplateros dentatus; 20 – Cavoplateros spinipes; 21 – Microlycus mexicanus sp. n.; 22 – Microlycus minutus; 23 – Plateros puniceus; 24 – Calolycus calanticatus; 25 – Plateros cephalotes (Pic); 26 – Falsocalleros particularis;
27 – Dihammatus sp.; 28 – Libnetis piceovittatus. Scale = 0.5 mm.
Platerodinae are supported by 3 synapomorphies (ch 6,
11, 15) two of them (ch 11, 15) have each a reversal.
Nevertheless, the coding of character 15 for Microlycus is
not certain because its coxites are only slightly
coalescent. Thus, it would be possible to treat character
15 as multistate, coded by state 2 for Microlycus. Then
also this character would have no reversal in Platerodinae.
The interrelationships of Platerodinae genera have
remained out of interest of previous authors, and the initial placement of most genera (Kleine, 1928, 1933) has
never been explicitly justified. Bocák and Bocáková
61
Figs 29–38: Head and pronotum. 29 – Plateros atroviolaceus; 30 – Plateros cephalotes; 31 – Plateros particularis (Pic); 32
–Teroplas fusculus; 33 – Teroplas oculatus sp. n.; 34 – Cavoplateros spinipes; 35 – Microlycus minutus; 35a – Microlycus mexicanus sp. n.; 36 – Cavoplateros dentatus; 37 – Calolycus calanticatus; 38 – Plateros brasiliensis (Lucas). Scale = 0.5 mm.
(1990a) examined only the tribal classification, and they
proposed the subfamily as a tribe Platerodini and established here three subtribes: Lyponiina, Libnetina and
Platerodina. But examination of type specimens of all
genus-group taxa was beyond the scope of that paper.
Bocák & Bocáková (1990a) proposed sister-group
relationships of the genus Lyponia and Platerodini in the
restricted sense, and considered Libnetini to be a sister
group of Lyponia – Platerodini lineage. According to the
present phylogenetic hypothesis (Fig. 1b) Lyponia has a
more basal placement and is the sister-group of Libnetini
and Platerodini. There are several apomorphies supporting Lyponiini as a separate clade: shape of the phallo62
base and phallus, prolonged basal part of coxites and an
attachment of valvifers. The clade Platerodini - Libnetini
- Microlycus - Calolycus is defined by 3 synapomorphies,
especially the shape of mesosternum, different shape of
reticulate cells, as well as by the prolonged trochanters,
which seems to be a homoplasy shared with Taphes.
Microlycus and Calolycus have a basal placement in
the strict consensus tree, placed after Lyponia but before
Libnetini and Platerodini. The monophyly of the clade
Microlycus and Calolycus is uncertain. They form two
successive branches in the first most parsimonious tree. In
the 2nd and 3rd of the three most parsimonious trees (Fig.
4), as well as in the single tree obtained after successive
Figs 39–51. 39–42: Maxilla. 39 – Plateros planatus; 40 – Libnetis piceovittatus; 41 – Dihammatus sp.; 42 – Lyponia himalejica.
43–46: 43 – Dihammatus sp.; 44 – Plateros planatus; 45 – Lyponia himalejica; 46 – Libnetis piceovittatus. 47 – mandible of
Plateros planatus; 48 – labrum of Lyponia himalejica; 49 – labrum and hypopharynx of Plateros planatus; 50–51: Libnetis piceovittatus. 50 – labrum; 51 – hypopharynx. Scales for figs 39–41, 43–44, 46, 47, 49–51 – 0.25 mm; scales for figs 42, 45, 48 – 0.5 mm
weighting, these genera form a monophyletic group.
Microlycus and Calolycus differ from other Platerodinae
in having primary costae 2 and 4 elevated (ch2), and
therefore their general appearance is rather different.
Nevertheless, the clade Microlycus+Calolycus+Platerodini+Libnetini is well supported (see above). Although
Microlycus and Calolycus resemble each other superfi-
cially, they differ substantially in the morphology of
female genitalia. Besides, another apomorphic feature that
supports the monophyly of the clade is the absence of
paramerae (ch 10), which is only a result of character
optimization because male of Microlycus is not known.
For these reasons, because of low bootstrap and jackboot
values, and particularly because the clade has split in the
63
Figs 52–57: Thorax, ventral view. 52 – Plateros puniceus; 53 – Plateros planatus; 54 – Libnetis piceovittatus; 55 – Dihammatus
sp.; 56 – Lyponia himalejica; 57 – Teroplas fusculus. Scale = 0.5 mm.
strict consensus tree, Microlycus and Calolycus are kept
incertae sedis within Platerodinae.
Dihammatus, formerly placed in the Platerodini
lineage (Bocák & Bocáková, 1990a) is considered the
basal member of Libnetini. The evidence supporting the
closer relationship of Dihammatus with Libnetini, instead
of with restricted Platerodini, is based on female genitalia
64
characters (presence of paraprocts - ch 14, inner basal
margin of coxites emarginate and distant – ch 17). The
close relationship between Dihammatus and other Libnetini, proposed here, is not so evident from the adult
external morphology (presence of reticulate cells – ch 3,
and secondary costae on elytra – ch 0 – absent in Libnetis
and Libnetisia both being plesiomorphies). No data on
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Figs 58–70. 58–61: Thorax, dorsal view. 58 – Plateros planatus, 59 – Dihammatus sp.; 60 – Libnetis piceovittatus; 61 – Lyponia
himalejica; 62–63: Scutellum. 62 – Libnetis piceovittatus; 63 – Dihammatus sp.; 64–66: Mesosternum. 64 – Fernandum minutum;
65 – Calolycus calanticatus; 66 – Falsocalleros moleculus. 67–70: Hind leg. 67 – Teroplas oculatus; 68 – Microlycus mexicanus sp.
n.; 69 – Cavoplateros dentatus; 70 – Cavoplateros spinipes. Scale = 0.5 mm.
Genus Libnetis Waterhouse, 1878
(Figs 9–10, 28, 40, 46, 50–51, 54, 60, 76, 125a–b, 141–142)
Libnetis Waterhouse, 1878: 104.
Type species: Libnetis pumilio Waterhouse, 1878 (by
monotypy).
Libnetomimus Kleine, 1927: 1, syn. n.
Type species: Libnetomimus setosus Kleine, 1927 (original designation).
67
Figs 71–80: Wing venation. 71 – Calolycus calanticatus; 72 – Lyponia himalejica; 73 – Teroplas fusculus; 74 – Dihammatus sp.;
75 – Plateros particularis (Pic); 76 – Libnetis piceovittatus; 77 – Cavoplateros spinipes; 78 – Libnetisia atronotata; 79 – Plateros
planatus; 80 – Falsocalleros particularis. Scale = 0.5 mm.
Diagnosis. Small lycids with rather prolonged mouthparts, reduced mandibles, antennomere 3 long, each elytron with 4 longitudinal costae, secondary costae and
reticulate cells absent.
Redescription. Body usually partly brown or yellow.
Head with large eyes, eye diameter as long as or longer
than interocular distance. Antennae filiform in both sexes,
in some species one of antennomeres 4–7 provided with a
short lamella. Antennae reaching elytral midlength,
68
antennal tubercles conspicuous. Antennomere 3 long, as
long as 3/4 of antennomere 4. Mouthparts elongate, mandibles reduced, almost trianguloid. Maxillary palpi long,
4-segmented, labial palpi short, 3-segmented, both palpi
with terminal palpomeres apically pointed. Pronotum
trapezoidal, transverse, widest at basal margin, anterior
margin slightly produced forwards, sides elevated. Anterior portion medially elevated and strongly punctured.
Median longitudinal line channelled at base, forming
small longitudinal areola. Posterior angles acute, projected obliquely backwards. Scutellum with a shallow
arcuate apical notch. Elytra elongate, subparallel-sided,
2.6–3.3 times as long as humeral width and slightly wider
than pronotum. Each elytron with 4 weak costae, secondary costae entirely absent. Reticulate cells absent, elytra
densely punctured. Mesosternum strongly transverse,
wing venation with AP3+4 absent. Male terminal sternum
provided with proximal enlargements to which projections of tergum 9 are attached. Legs very slender, compressed. Tibiae straight, apical spurs small, slender and
acute, trochanters long. Tarsomere 1 not lobed, tarsomere
2 only with hardly visible remnant of its lobe, lobes of
tarsomeres 3 and 4 large. Male genitalia with short phallobase, paramerae shortened usually as long as half of
phallus, ventrobasally fused. Phallus tapering to apex,
entirely opened ventrally. Female genitalia short, coxites
medially emarginate, valvifers basally widened, these
enlargements ventromedially approached. Body length:
3.4 – 5.3 mm; humeral width: 1 – 1.6 mm.
Type material. Syntype of Libnetis pumilio, l (BMNH)
“Ceylon, Thwaites” (bearing Waterhouse’s label k); syntype,l,
the same data (BMNH). Holotype of Libnetomimus setosus
Kleine,k“Luzon, Mt. Makiling, Baker” (ZMPA).
Distribution. S China, Thailand, Laos, Vietnam, Burma,
Nepal, India, Sri Lanka, Malaysia, the Great Sundas, Bali, Taiwan, Philippines.
Comments. Kleine (1927) established the genus Libnetomimus on the basis of the presence of a lamella on
antennomere 7. Because of this character appears several
times in different species groups of Libnetis (lamella can
be present on different antennomeres) it cannot be supposed to be a synapomorphy, but a multiple parallelism.
Genus Libnetisia Pic, 1921
(Figs 78, 85–86, 127)
Libnetisia Pic, 1921a: 1.
Type species. Libnetisia atricornis Pic, 1921 (original designation).
Diagnosis. Small lycids with short mouth-parts, each
elytron with 4 costae, reticulate cells absent. Paramerae
incorporated into phallus (Fig. 127), shorter than half of
phallus.
Redescription. Head with small eyes, interocular distance 1.5 times as long as eye diameter, antennae filiform,
long, reaching apical third of elytra, antennomere 3 long,
1
/3 shorter than 4. Mandibles slender, arcuate, maxillary
palpi long, with terminal palpomere parallel-sided,
slightly apically securiform, labial palpi 3-segmented.
Pronotum trapezoidal, transverse, widest at base, anterior
margin semicircularly produced forwards, sides elevated.
Posterior angles acute, projected obliquely backwards.
Anterior half of pronotum strongly punctured, provided
with median longitudinal carina, pronotum medially
weakly channelled in basal half. Scutellum with shallow
apical notch. Elytra elongate, subparallel-sided, about 3
times as long as humeral width. Each elytron with 4 weak
costae, reticulate cells and secondary costae absent, elytra
finely punctured. Mesosternum more or less trapezoidal,
transverse, wing venation with short vein AP3+4 some-
times present. Abdominal sternum 8 with an arcuate distal
emargination, male sternum 9 elongate, twice laterally
emarginate in proximal portion. Legs rather stouter than
in Libnetis, tibiae straight, their spurs small, trochanters
elongate, hind trochanters slightly trianguloid, tarsomeres
1–4 lobed. Male genitalia rather dorsoventrally flattened
apically, paramerae strongly reduced, shorter than half of
phallus, phallobase short (Fig. 127).
Body length. 5.3–5.5 mm, humeral width: 1.3–1.4 mm.
Type material. Holotype (k) of Libnetisia atronotata Pic,
1923, “Chapa”, without other data (MNHN).
Distribution. SW China (Yunnan), Assam, India, Vietnam, Sumatra, Borneo, Philippines.
Comments. Unfortunately, it was not possible to
examine the type species of the genus Libnetisia atricornis because its type specimen was not found in M.
Pic’s collection (MNHN). The only Libnetisia type
specimen found was that of Libnetisia atronotata. Therefore, the concept of Libnetisia as here understood corresponds to it.
Genus Microlyropaeus Pic, 1929
Microlyropaeus Pic, 1929: 4.
Type species. Microlyropaeus notaticollis Pic, 1929 (by monotypy).
Diagnosis. Lycids resembling Dihammatus in having
short antennomere 3 that is of the same length as 2. On
the other hand, Kasantsev (1997a) examined the structure
of male genitalia that are similar to those of Libnetis.
Distribution. Sumatra.
Comments. Unfortunately, it was not possible to
examine the only known specimen of the genus because
its lectotype has been loaned for several years. Therefore,
Microlyropaeus Pic could not been included into the phylogenetic analysis. Kasantsev (1997a) examined its lectotype and supposed Microlyropaeus to have rather intermediate position between the genera Dihammatus and
Libnetis. Consequently, here it is tentatively classified
within Libnetini incertae sedis.
Tribe Platerodini Kleine, 1928
Platerodinae Kleine, 1928: 222.
Diagnosis. Small lycid beetles, head partly concealed
under pronotum, antennal tubercles inconspicuous,
antennae mostly filiform, in some species serrate to pectinate in males and serrate in females. Pronotum usually
transverse, rather subpentagonal, widest at base. Disc
convex, weakly elevated dorsally, without carinae,
median longitudinal line posteriorly channelled, forming
a small median depression at basal margin. Margins narrowly reflexed, sides more broadly. Scutellum oblong,
apically impressed. Elytra with primary and secondary
costae usually equal in strength. Each elytron with 9 longitudinal costae, in Falsocalleros five intercostae present
only basally and primary costae 1 and 3 apically reduced.
Spiculum gastrale of female terminal sternum absent.
Male genitalia with paramerae absent (Plateros and
Cavoplateros) or strongly shortened (Falsocalleros), only
Teroplas having paramerae long. Female genitalia short,
69
Figs 81–94. 81–89: Terminal abdominal segment of male. 81 – Plateros atroviolaceus; 82 – Calolycus calanticatus; 83 – Melaneros acuticollis; 84 – Cavoplateros spinipes; 85, 86 – Libnetisia atronotata; 87 – Teroplas fusculus; 88 – Plateros brasiliensis
(Lucas); 89 – Cavoplateros dentatus; 90–94: Female terminal sternum. 90 – Calolycus calanticatus; 91 – Lyponia himalejica; 92 –
Microlycus minutus; 93 – Microlycus mexicanus sp. n.; 94 – Dihammatus sp. Scale = 0.5 mm.
inner basal margins of coxites approached to each other,
valvifers short, widened basally. Female genital ducts
with vaginal glands widely attached to vagina at its apex.
Composition. Platerodini as here understood contain
the genera Teroplas, Falsocalleros, Plateros and Cavoplateros.
70
Genus Teroplas Gorham, 1884
Teroplas Gorham, 1884: 243.
Type species: Calocladon fusculus Gorham, 1881 (by
monotypy).
Diagnosis. Head with large eyes, partly hidden by pronotum, eye diameter 1.7 times to twice as long as intero-
Figs 95–106. Male genitalia. 95–96: Plateros puniceus; 97–98: Plateros malaccanus; 99–100: Plateros atroviolaceus; 101–102:
Cavoplateros dentatus; 103–104: Cavoplateros spinipes; 105–106: Plateros cephalotes (Pic). Scale = 0.5 mm.
cular distance, female eyes smaller. Antennae of both
sexes long, reaching at least apical quarter of elytra. Male
antennae serrate to pectinate, female antennae serrate.
Antennomere 1 stout and constricted basally, 2 small, 3
about 1.6 times shorter than 4, antennomeres 4–10 subequal in length. Mandibles slender, arcuate, apically
pointed. Maxillary palpi long, with palpomere 2 elongate,
terminal palpomere securiform. Labial palpi short, with
terminal palpomere apically dilated. Pronotum trapezoidal, transverse, widest at basal margin, anterior margin
strongly produced forwards, weakly emarginate, posterior
angles projected obliquely backwards. Scutellum almost
square, weakly emarginate apically. Elytra almost
parallel-sided, more than 3 times as long as humeral
width. Each elytron with 9 weak costae, reticulate cells
oval, mesosternum trapezoidal. Legs slender, compressed,
trochanters elongate, tibiae straight, their spurs small.
Lobes of tarsomeres 1 and 2 strongly reduced, those of
tarsomeres 3–4 wide. Male genitalia with long ventrobasally fused paramerae, phallus with apical opening
weakly constricted before apex, median portion of phallus
with two stick-formed projections. Female genitalia short,
styli long, slightly longer than coxites, valvifers laterally
bent, freely attached to coxites, spiculum gastrale absent.
Distribution. Nicaragua, Panama.
71
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Figs 107–118. Male genitalia. 107–108: Plateros particularis (Pic); 109–110: Falsocalleros moleculus; 111 – Plateros punctipennis (Waterhouse); 112 – Teroplas fusculus; 113–114: Teroplas oculatus sp. n.; 115–116: Melaneros acuticollis; 117–118: Subdihammatus curvus. Scale = 0.5 mm.
ence that even species identity is suspected, however, this
cannot be solved until both sexes from the two species are
known. Therefore, only the synonymization of Pseudoplateros to Falsocalleros is made here.
Falsocalleros particularis Pic, 1933
(Figs 5, 26, 80, 135)
Falsocalleros particularis Pic, 1933: 110.
Diagnosis. Elytra with strongly reduced secondary
costae, transverse costae irregular, primary costae 1 and 3
apically reduced.
Redescription. l. Body black, only pronotum yellow.
Head with small eyes, interocular distance 2.2 times eye
span. Antennal tubercles small, antennae filiform, short,
reaching elytral third. Antennomere 3 trianguloid, 1/3
shorter than 4. Pronotum rather trapezoidal, transverse,
widest at basal margin, anterior margin slightly produced
forwards, posterior angles divergent obliquely backwards.
Scutellum with shallow arcuate apical notch. Elytra elongate, about 3.5 times as long as humeral width and by 1/6
wider than pronotum. Each elytron with 4 primary costae,
with costa 1 and 3 apically reduced. Secondary costae
almost absent, their remnants present basally. Reticulate
cells transverse, poorly defined, mesosternum trapezoidal.
Wing venation with brace CuA1 attached to MP3+4 shortly
after its bifurcation. Legs compressed, tibiae straight, trochanters short. Female genitalia short, inner proximal
margins of coxites approached to each other, valvifers
73
Figs 119–127. Male genitalia. 119–120: Calolycus calanticatus; 121–122: Fernandum minutum; 123–124: Dihammatus cribripennis; 125a–b: Libnetis setosus; 126a–d: Plateros brasiliensis (Lucas); 127 – Libnetisia atronotata. Scales = 0.5 mm; scales for
Figs 121–122: 0.25 mm.
short, with widened bases, proctiger elongate. Vagina
long, ductus receptaculi spiral. Male unknown.
Type material. Holotype of Falsocalleros particularis Pic,
l, “Südamerika, Vulkan Irazu, 2800 – 3000 m, Costa Rica, F.
Nevermann, 15. I. 1926” (ZMPA).
Distribution. Costa Rica.
Falsocalleros moleculus (Green, 1951) comb. n.
(Figs 66, 109–110)
Pseudoplateros moleculus Green, 1951: 18.
Diagnosis. Secondary elytral costae almost absent,
transverse costae irregular, primary costae 1 and 3 apically reduced, aedeagus with short paramerae.
Redescription. k. Body black, pronotum mostly yellow. Head with small eyes, interocular distance 1.55
74
times as long as eye span. Antennal tubercles small,
antennae short, reaching elytral third. Antennomere 1
stout and constricted basally, 2 small, 3 trianguloid, 1/3
shorter than 4. Pronotum rather trapezoidal, transverse,
widest at basal margin, anterior margin slightly produced
forwards, posterior angles divergent obliquely backwards.
Scutellum with shallow arcuate apical notch. Elytra elongate, about 3.5 times as long as humeral width and by 1/6
wider than pronotum. Each elytron with 4 primary costae,
with costa 1 and 3 apically reduced. Secondary costae
almost absent, their remnants present basally. Reticulate
cells transverse, irregular. Mesosternum trapezoidal.
Wing venation with brace CuA1 attached to MP3+4 after its
bifurcation. Abdominal sternum 8 with widely trianguloid
distal emargination about 2.5 times as wide as deep,
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Figs 128–133. Female genitalia. 128 – Microlycus minutus; 129 – Lyponia himalejica; 130 – Calolycus calanticatus; 131 –
Plateros particularis (Pic); 132 – Microlycus mexicanus; 133 – Plateros planatus. Scale = 0.5 mm.
Holotype of Tolianus diversithorax Pic, l, “Nord Celebes, ToliToli, Nov-Dez 1895, H. Fruhstorfer” (MNHN); Holotype of
Melampyrus alternans Waterhouse, l “Sarawak, Wallace”
(BMNH).
76
Other material. Ethiopia: Dint. Harrar, V.–VI. 1904, Citerni
lgt., 1 k of Planeteros ochropterus Gorham, det. Pic (MCSN).
Distribution. Nearctic and Neotropical Region, Palaearctic
Region: East Asia (Ussuri, Korea, Japan, China), Afrotropical
Figs 134–136. Female genitalia. 134 – Teroplas fusculus; 135 – Falsocalleros particularis; 136 – Tolianus diversithorax. Scale =
0.5 mm.
Region, Oriental Region, Australian Region (New Guinea, the
Tonga islands, Fidji, Samoa, and northern Queensland in Australia).
Comments. Bourgeois (1891) fixed Melaneros acuticollis Fairmaire, 1877 to be the type species of the genus
Melaneros Fairmaire, 1877. Blair (1928) overlooked this
fixation, designated Melaneros atroviolaceus Fairmaire,
1877 as type species of Melaneros, and proposed name
Samoaneros for the species Melaneros acuticollis. Bocák
& Bocáková (1992) also overlooked Bourgeois‘s fixation
of Melaneros acuticollis as type species of Melaneros,
considered Blair’s (1928) fixation of the type species
Melaneros atroviolaceus for the genus Melaneros to be
valid, and consequently they synonymized Plateros Bourgeois, 1879 to Melaneros Fairmaire, 1877. The detection
of the fact that Bourgeois (1891) had already fixed
Melaneros acuticollis as type species of Melaneros compels me to reinstate the validity of Plateros Bourgeois,
1879.
Eros alatus Newman, 1838 was considered to be the
type species of Plateros for long, but Bourgeois (1879)
did not included this species in the original description of
Plateros. Therefore, subsequent designation (Bourgeois,
1891) of Plateros alatus to be the type species of Plateros
is invalid. Consequently, Zaragoza (1999) designated
Plateros brasiliensis (Lucas) as type species of Plateros,
but he has not prospected its holotype.
77
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Figs 137–142. Female genitalia. 137 – Plateros fortecostatus (Pic); 138 – Dihammatus sp.; 139 – Plateros atroviolaceus; 140 –
Melaneros acuticollis; 141 – Libnetis pumilio; 142– Libnetis piceovittatus. Scale = 0.5 mm.
(i.e. primary costae) of the elytra more elevated. All the
characters vary considerably in many Plateros species
mostly classified with Ditoneces by previous authors.
Females of these species have also serrate antennae and
the extent of pubescence can hardly be explicitly defined.
More elevated primary elytral costae can also be found in
some southeast Asiatic Plateros species as well as in
South American Costatoplateros. Closely related species
often have both slightly elevated and non-elevated elytral
costae. If Melampyrus associated all Plateros-like species
with slightly elevated alternate elytral costae then the
taxon would be polyphyletic. If only species closely
related to the type species Melampyrus alternans Waterhouse, 1878 were included then the genus Plateros would
become paraphyletic having no apomorphic character.
Therefore, Melampyrus Waterhouse, 1879 is synonymized.
Planeteros Gorham, 1883 was proposed for a single
African species. Gorham (1883) stated that it was closely
allied to the genus Plateros, and that “the key to the separation of these difficult genera of small Lycidae will be
found in the proportion of antennal joints”. Gorham had
79
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