Antinia

Kania, Jarosław & Piwnik, Agata, 2017, Notes on the genera Antinia Pascoe, 1871 and Dermatodina Faust, 1895 with description of D. boroveci sp. nov. from Thailand (Coleoptera: Curculionidae: Entiminae), Zootaxa 4232 (3), pp. 322-330 : 323-324

Key to genera Antinia and Dermatodina

1. Body elongate ( Fig. 1 ). Scutellum visible. Basal margin of elytra with dense setae protruding anterad. Elytral striae of various width, foveolate or elongate-punctate, each fovea with distinct central puncture armed with small seta. Elytral disc moderately convex, elongate oval, elytra 1.50–1.80 times as long as wide. Erect scales on intervals three times longer than adherent scales, numerous, distinctly protruding posterad. Claws asymmetrical ( Fig. 14 )................................. ( Antinia ) 2.

-. Body pear-shaped, strongly convex ( Fig. 2 ). Scutellum not visible. Basal margin of elytra without setae. Elytral striae narrow, not foveolate, indistinctly punctate, without setae but with scales. Elytral disc strongly convex, stout, elytra 1.18–1.33 times as long as wide. Erect scales on intervals 4–7 times longer than adherent scales, sparse, moderately protruding posterad. Claws symmertical or asymmetrical ( Figs 13, 14 ).................................................. .. ( Dermatodina ) 4.

mainly covered with metallic green scales. Malaysia.................................................. A. viridis -. Rostrum short, 1.20 times or less as long as wide ( Figs 5–6 ). Elytra about 1.50 times as long as wide. Integument mainly covered with light brown scales ( Fig. 12 ).................................................................... 3.

3. Elytrial striae with large and shallow foveae. Eyes unevenly convex, with top of the convexity before middle. Elytral intervals 1 and 2 in basal 1/3 of length with dark brown scales. Posterior half of elytron with oblique band which on 3rd interval passes through tubercles and is covered with thicker and more closely arranged setae. Apex of aedeagus narrow, tapered. Sclerites in internal sac elongate ( Fig. 8 ).................................................................... A. eupleura

-. Elytral striae with small, elongate punctures ( Fig. 11 ). Eyes unevenly convex, with top of the convexity behind middle. Only elytral interval 1 in basal 1/3 of length with dark brown scales. Posterior half of elytron with oblique band which ends at interval 2, without tubercles. Apex of aedeagus narrow but obtuse. Sclerites in internal sac short ( Fig. 7 )........ A. pendleburyi

4. Scales adhering to body surface matte, covering entire body surface and overlapping. Pronotum almost as long as wide or 1.08–1.41x wider than long, protonum margins regularly or irregularly rounded. Body length 3.20–6.20 mm ............ 5.

-. Scales adhering to body surface shiny, not covering the entire body surface, and ususally not overlapping ( Fig 18 .). Pronotum very wide, 1.50–1.65x wider than long, margins evenly rounded ( Figs 15, 16 ) Body length: 1.47–3.10 mm ..................................................................................................... D. boroveci sp. n.

5. Scales adhering to body surface brown. Elytra with bark brown or black band. Furrow separating rostrum from head distinctly marked............................................................................................. 6.

-. Scales adhering to body surface yellowish brown. Elytra without distinct band. Furrow separating rostrum from head not distinct, covered with scales.................................................................... D. szelagowiczi

6. Pronotum with very fine median channel, without basal impressions, dorsal surface distinctly granulate, each granule with erect scale. Erect scales on elytra elongate, 6–7 times longer than adherent scales................................. 7.

-. Pronotum with more or less distinct median channel, with basal transverse impressions, dorsal surface not granulate, without or at most with very sparse impressions, without or or at most with very sparse erect scales.......................... 8.

7. Pronotum longer than wide. Elytra elongate-oval ( Fig. 2 ). Rostrum 1.1–1.2 times as long as wide, its ventral side distinctly widened apically, frontal row narrow, often indistinct. Elytra with basal 1/6 of length of 1st interval with pale spot, behind middle of elytron, from 5th interval with pale, laterally widened transverse band. Parameres distinct, parallel-sided, aproximately 7 times long as wide.............................................................................. D. vitiosa

-. Pronotum wider than long. Elytra oval. Rostrum 1.3 times as long as wide, its ventral side moderately widened apically, frontal row broad and distinct. Antennal club stout, almost oval. Elytra at mid length from 2nd interval with brown, laterally narrowed transverse band. Parameres absent ( Fig. 10 )........................................................ D. variegata

8. Length 4.05 mm, width 2.20 mm. Eyes delicately convex. Rostrum parallel-sided. Elytra slightly convex, behind middle with V-shaped band between intervals 2 to 5........................................................... D. szypulai

-. Length 5.15–6.60 mm, width 2.60–3.35 mm. Eyes strongly convex. Rostrum widened apically. Elytra strongly convex, at midlength with transverse, broad band between intervals 1 to 6 or without band...................................... 9.

9. Pronotum with discal area slightly convex, feebly rounded on sides, widest at mid-length. Scales adhering to body surface dark brown, elytra without distinct band. Intervals on elytra clearly flattened................................... D. kadeji

-. Pronotum with discal area almost flat, unevenly rounded on sides, widest before mid-length. Intervals on elytra clearly convex. Scales adhering to body surface light brown with wide brown band on intervals 1–6................... D. holynskiorum

Figures

FIGURES 1 – 6. 1, 3, 4, Antinia eupleura Pascoe, 1871, holotype male; 2, 5, 6, Dermatodina vitiosa Faust, 1895, female; 1, 2 dorsal habitus, 3, 5 head lateral view, 4, 6, head dorsal view (according to Kania & Dąbrowska 1995).

FIGURES 7 – 14. 7, 9, 11, Antinia pendleburyi Marshall, 1932: 8, 14, Antinia eupleura Pascoe, 1871; 10, Dermatodina variegata Voss, 1958, 12, 13 Dermatodina vitiosa Faust, 1895; 7, 8, aedeagus, 9, 10, tegmen, 11, 12, scales on elytra, 13, 14 claws (according to Kania & Dąbrowska 1995).

FIGURES 15 – 19. Dermatodina boroveci sp. nov.: 15, female, dorsal view, 16, male dorsal view, 17, male, lateral view, 18, scales on etytra, 19, erect scale on elytra.