Chilocorellus Miyatake, 1994
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publication ID |
https://dx.doi.org/10.3897/zookeys.937.50139 |
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publication LSID |
lsid:zoobank.org:pub:2E284E4E-50AD-43B9-8008-3F77FD10D60C |
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persistent identifier |
https://treatment.plazi.org/id/78EDFD52-141E-5A14-BE89-82EDFE2EC1D6 |
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treatment provided by |
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scientific name |
Chilocorellus Miyatake, 1994 |
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Genus Chilocorellus Miyatake, 1994
Type species.
Chilocorellus luzonicus Miyatake, 1994.
Diagnosis.
Chilocorellus is similar to Synonychimorpha Miyatake, 1994 in general appearance, with body rounded and glabrous; dorsal surface predominantly yellowish, elytral epipleuron broad (Fig. 1a-c View Figure 1 ); antenna with 11-antennomeres, long, antennal club distinctly 3-antennomeres, terminal antennomere elongate, and apically distinctly pointed (Fig. 1d, f View Figure 1 ). It can be distinguished from Synonychimorpha by its prosternal process in the form of an approximately ovoid prominence without carinae (Fig. 1l View Figure 1 ). In Synonychimorpha , prosternal process is square.
Description.
Body rounded, moderately to strongly convex, sub-hemispherical; dorsal surface apparently glabrous (Fig. 1a-c View Figure 1 ).
Head strongly hypognathous and small (Fig. 1c, d View Figure 1 ). Frons wide and flat with punctate (Fig. 1d View Figure 1 ). Clypeus short and transverse with anterior margin emarginate medially (Fig. 1e View Figure 1 ). Eyes large, coarsely faceted, inner eye canthus absent (Fig. 1c, d View Figure 1 ). Antennae with eleven antennomeres, scape and pedicel robust, scape elongate and curved near base, pedicel approximately as broad as scape; flagellum with nine antennomeres, antennomeres 3-5 slender, antennomeres 6-8 subequal in length and width; three terminal antennomeres comparatively wider than other antennomeres, forming a fusiform club with setae (Fig. 1d, f View Figure 1 ). Labrum transverse, rounded anteriorly and covered with long dense setae (Fig. 1g View Figure 1 ). Mandible subtriangular with two apical teeth, sharp and smooth; the two parts of mandibles asymmetrical, mola normal with two molar teeth on the left and one molar tooth on the right (Fig. 1h, i View Figure 1 ). Maxillary palp with four palpomeres, palpomere 1 small, palpomere 2 geniculate and at least two times as long as wide, palpomere 3 obviously short, terminal one slender and sharp, with strong obliquely truncated apex (Fig. 1j View Figure 1 ). Labial palp with three palpomeres, palpomere 1 tiny, palpomere 2 robust, terminal palpomere slender with setae, strongly conical, pointed apically; ligula membranous; insertion of labial palps visible ventrally on prementum; mentum trapezoidal, distinctly narrowed basally (Fig. 1k View Figure 1 ). Pronotum moderately transverse, broadly arcuate in both of frontal and lateral view, anterior margin emarginate; hind margin rounded; lateral margin rounded; not conspicuously angulate (Fig. 1a-c View Figure 1 ). Scutellar shield triangular (Fig. 1a, c View Figure 1 ). Elytra with prominent humeral angles, convex, anterior margin almost equal in width to hind margin of pronotum, lateral margins rounded, broadly explanate; dorsal surface glabrous, with dense and similar-sized punctation (Fig. 1a-c View Figure 1 ). Elytral epipleuron broad and gently complete apically, approximately 1/4 width of elytra. Hind wings well developed (Fig. 1a, b View Figure 1 ). Prosternum T-shaped, with golden pubescence and inconspicuous punctures; prosternal process significantly narrower than the transverse procoxa, prosternal carina absent; hypomeron broad without foveate (Fig. 1l View Figure 1 ). Meso- and metaventral processes broad, as wide as midcoxal diameter, with golden pubescence and inconspicuous punctures; metaventral postcoxal lines angled at the middle joint and complete (Fig. 1m View Figure 1 ). Metendosternite stalk distinctly shorter (0.5 or less) than broad, tendons widely separated and placed near apices of arms (Figs 1n View Figure 1 , 2n View Figure 2 , 3n View Figure 3 ). Legs robust with dense pubescence; pro and hind coxae transverse but mid coxae oval; trochanter sub-triangular, robust; femora thick, as long as tibia, but tibia slender, half as wide as femora; tarsi with four tarsomeres, tarsomere 3 minute, tarsomere 4 slender, longer than other tarsomeres; claws bidentate with two teeth (Fig. 1o-q View Figure 1 ). Abdomen with five ventrites; ventrite 1 slightly longer than ventrite 2, abdominal postcoxal lines incomplete, not recurved reaching the hind margin of ventrite 1; ventrites 2-4 sub-equal in length; ventrite 5 longer than ventrite 4, with hind margin rounded (Fig. 1r-1 View Figure 1 , s). Segment VIII, hind margin of male sternite emarginate and hind margin of female sternite rounded; tergite with hind margin rounded (Fig. 1r-1 View Figure 1 , s). Male terminalia, sternite IX and X sclerotized, with hind margin rounded (Fig. 1r View Figure 1 - 2 View Figure 2 ). Male genitalia: tegmen slender and symmetrical, basal piece membranous; tegminal strut T-shaped and widened apically; penis guide slender in ventral and lateral views, parameres slender, setose at apex. Penis slender and long, curved; penis capsule asymmetrical, inner arm developed, outer arm reduced; the front part and apex of penis tubular with teeth (Fig. 1t, u View Figure 1 ). Female genitalia: coxites triangular, setose apically; styli conspicuous (Fig. 1x View Figure 1 ).
Distribution.
China, Indonesia, Laos, Philippines (Fig. 4 View Figure 4 ).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.