Aparopion Hampe, 1861

Hlaváč, Peter, 2020, Review of the tribe Typoderini (Coleoptera: Curculionidae) from Caucasus with the description of a new species of Caulomorphus from Armenia, Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 60 (2), pp. 629-638 : 634

Aparopion Hampe, 1861

( Figs 1e , 4g )

Aparopion Hampe, 1861: 68 (original description). Rൾංඍඍൾඋ (1913): 53

(key); Aඅඈඇඌඈ-ZൺඋൺඓൺǤൺ & Lඒൺඅ (1999): 196 (catalogue); Aඅඈඇඌඈ-

ZൺඋൺඓൺǤൺ (2013): 496 (catalogue); Aඅඈඇඌඈ-ZൺඋൺඓൺǤൺ (2017): 491

(catalogue).

Type species. Aparopion costatum Hampe, 1861 (= Trachodes costatus Fåhraeus, 1843 ) by monotypy.

Diagnosis. Body slightly oval, length 3.7–5.8 mm. Elytra and pronotum lacking erect setae, head about as long as pronotum. Eyes large, oval, clearly visible in dorsal view, situated at base of rostrum. Rostrum lacking carinae, densely punctate, scrobes visible dorsally. Antennae ( Fig. 4g ) slender, scape long, reaching anterior margin of eyes, funicule with 7 antennomeres, antennomeres II and III approx. of same length, all antennomeres elongate. Pronotum lacking carinae or smooth median line, rugosely punctate, constricted before apex, postocular lobe absent, scutellum not visible. Elytra wide, EL/EW ratio <1.25, interstriae elevated, granulate, striae composed of single row of small deep punctures, apex of each elytron with well-defined preapical constriction. Procoxae separated, mesocoxae widely separated, ventrite I and II separated by straight suture, ventrite I clearly longer than II. Tarsomere III strongly bilobed, onychium long, at least as long as tarsomeres II and III together. Median lobe of aedeagus asymmetrical, with internal sclerites, parameres absent.

Remarks. The genus was recently revised (Zඎඉඉൺ & Oඌൾඅඅൺ 1999) and four species were recognized, A. chevrolati (Jacquelin du Val, 1855) and A. suturidens Reitter, 1891 from France and Italy, the newly described species A. numidicum Zuppa & Osella, 1999 from Algeria, and relatively widespread A. costatum .

Figures

Fig. 1. Dorsal habitus. a – Adexius scrobipennis Gyllenhal, 1834; b – Anchonidium caucasicum Motschulsky, 1845; c – Caulomorphus kociani sp. nov.; d – Anchonidium perpensum Faust, 1886; e – Aparopion costatum (Fåhraeus, 1843); f – Pseudaparopion kadleci Borovec, Osella & Zuppa, 2002.

Fig. 4. Anchonidium caucasicum Motschulsky, 1845: a – antenna; b – abdominal ventrites I–V; c – spermatheca; d – sternite VIII. Anchonidium perpensum Faust, 1886: e – spermatheca; f – sternite VIII. Aparopion costatum (Fåhraeus, 1843): g – antenna. Scale bars: 0.2 mm.