Apionidae Schoenherr 1823
Creators: name: Kissinger, David G.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Apionidae

description: Key to Apionidae from Chile   1A: Middle coxae separated by union of sternal processes; sterna 3 & 4 not emarginate; elytra not blue in color - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2   
 1B: Middle coxae not separated by junction of mesosternal process and intercoxal process of metasternum; pronotum and elytra subcylindrical in form (Fig. 1); sternum 3 emarginate on medial posterior border, on either side of emargination produced posteriorly as short, broad, flat process projecting over wide, basal emargination of sternum 4; sternum 4 broadly emarginate on posterior median margin; elytra blue - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Chilapion macilentum (Blanchard)   
 2A: Elytral intervals 1, 3 and 5 without multiple long, fine, erect setae (specialized setae) AND/OR endophallus without frena near orifice of median lobe of aedeagus; trochanter long - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3 setae) scattered along interval AND endophallus with 2 large hooklike processes (frena) near orifice of median lobe of aedeagus; trochanter short but femur not touching coxa - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Noterapion Kissinger   
 3A: Prothorax in dorsal view with basal flange (Figs. 7, 10) - - - - - - - - - - - - - - - - - - - - - - - - - - - 4   
 3B: Prothorax in dorsal view without basal flange (Figs. 15, 17) - - - - - - - - - - - - - - - - - - - - - 6   
 4A: Rostrum in profile distinctly curved (Figs. 8–9); elytral intervals with 2 or more rows of scales (Figs. 7, 10); male protarsomere 1 with spine on inner apical margin - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5   
 4B: Rostrum in profile almost straight (Figs. 4–5); elytral intervals with 1 row of scales (Fig. 6); male tarsi and tibiae unarmed - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Hecyrapion novercale Kissinger   
 5A: In profile dorsal margin of head nearly flat above eye (Fig. 9); male protarsomere 2 not longer than protarsomere 1, male femur 3 not greatly swollen - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Rhamnapion humerale (Philippi and Philippi)   
 5B: In profile dorsal margin of head abruptly, prominently produced above eye (Fig. 8); male protarsomere 2 distinctly longer than protarsomere 1, male femur 3 greatly swollen (Fig. 8, insert) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Rhamnapion pachymerum (Philippi and Philippi)   
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 6A(3): Subcephalic ridge low or absent, ventral surface of head virtually flat (Fig. 12); armature of ? legs various or lacking - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7   
 6B: Subcephalic ridge high, ventral surface of head excavated (Fig. 14); ? tarsi 1–3 have tarsomere 1 produced into blunt spine on inner apical margin - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Acarapion ferruginosum Kissinger   
 7A: Rostrum not long and cylindrical; antenna inserted beyond basal 1/4 of rostrum; dorsal margin of scrobe not produced into toothlike process; laterally, prothorax with sparse, fine, hairlike scales (Figs. 12, 16, 18) - - - - - - - - - - - - - - - - - - - - 8   
 7B: Rostrum elongate and cylindrical (Fig. 3); antenna inserted before basal 1/8 of rostrum; dorsal margin of scrobe produced into acute toothlike process (Fig. 3, insert); laterally, prothorax with dense, elliptical scales (Fig. 3) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Exapion ulicis (Forster)   
 8A: Scales on pronotum and dorsal elytral disk either virtually absent or shorter and finer than those on femora and tibiae (Figs. 16–17); ? tibiae 1–3 mucronate; endophallus without hook-like structure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9   
 8B: Scales on pronotum and dorsal elytral disk similar in length and coarseness to those on femora and tibiae (Figs. 11–12); ? tibia 2 mucronate; endophallus with large hook-like structure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Pystapion erotema Kissinger   
 9A: Elytra red-testaceous with margin and suture darker (Fig. 17); pronotum and dorsum of elytra virtually glabrous (Fig. 17); punctures on base of frons deeper and coarser than those on pronotum (Fig. 17A, B) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Mythapion trifolianum Kissinger   
 9B: Elytra piceous; scales on dorsum of elytra and pronotum present but distinctly shorter and finer than those on femora and tibiae (Fig. 16); punctures on base of frons not deeper and coarser than those on pronotum (Fig. 15A, B) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Mythapion adesmiae Kissinger
description: Published as part of Kissinger, David G., 2005, Review Of Apioninae Of Chile (Coleoptera: Curculionoidea: Apionidae), pp. 71-90 in The Coleopterists Bulletin 59 (1) on pages 72-73, DOI: 10.1649/0010-065X(2005)059[0071:ROAOCC]2.0.CO;2, http://zenodo.org/record/10104875