Caulomorphus besucheti Osella, 1970

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 : 634-635

Caulomorphus besucheti Osella, 1970

( Figs 5a–c )

Caulomorphus besucheti Osella,1970:366 (original description).Oඌൾඅඅൺ et al. (2003): 689, 691 (key), 692 (key).

Type locality. Turkey, Trabzon, Yomra.

Material examined. TURKEY: Sංඇඈඉ: ca 22 km of S Sinop, N of Lala, 41°53′21″N, 35°03′21″E, 160 m, oak & laurel forest, 31.iii.2009, 4 JJ 1 ♀, 6 spec., V. Assing and P. Wunderle lgt. ( ZMHB, CPHP); Çangal Daği, 30 km S of Ayancik, 41°48′44″N, 34°39′19″E, 920 m,

antennomeres II and III elongate and expanded towards apex, II about 1.80–2.00 × as long as III, antennomeres IV–VI subequal, about as long as wide, shortest, about 0.7 × of length of antennomere III, antennomere VII 1.2 × as long as VI and 0.85 × as long as VIII, antennal club about twice as long as antennomere II and about 1.65 × as long as wide. Pronotum 1.00–1.05 × as long as wide, 1.10–1.20 × as long as head, widest in middle, basal margin straight, with closely arranged large and subequal punctures, with thin but well-defined median carina. Elytra long, subparallel-sided, 1.65–1.75 × as long as wide, 2.20–2.30 × as long as pronotum, with about ten striae composed of punctures of equal size, distance between punctures approximately as wide as diameter of puncture, elytral interstriae slightly elevated, with even, short, golden setae, humeri prominent. Prosternum rugosely sculptured, with uneven large punctures. Procoxae separated by narrow isthmus. Mesoventrite about as long as metaventrite, mesoventrite shagreened, with even, sparse, small punctures bearing microseta, with some larger punctures on short mesoventral process, mesocoxae separated, isthmus about as wide as half of coxa. Metaventrite with large, shallow, closely arranged uneven punctures and golden setation, metacoxae strongly separated by large, convex process of ventrite I. Ventrite I longer than II, both punctate and with golden setation. Male terminalia. Aedeagus ( Figs 5a–b ) wide, flattened dorsally, laterally curved, with acuminate apex, male sternite IX ( Fig. 5c ) curved, asymmetrical, hemisternite round at apex, base slightly concave, lacking apical setae.

Distribution. Georgia (Adjara, Imereti, Mtskheta-Mtianeti) and Turkey (Aydin, Artvin, Sinop, Rize).

beech forest, 1.iv.2009. 2 JJ 1 ♀, V. Assing lgt. (ZMHB, CPHP). GEORGIA: Aൽඃൺඋൺ: Mtirala NP, Chakvistavi, 25.–26.vii.2014, 1 J, O. Konvička lgt. (CJKH); Mtirala NP, above Chakvistavi, sifting in forest, 41.654720N, 41.873877E, 1100 m, 30.v.2019, 4 JJ 1 ♀, M. Kocian lgt. (CPHP). Iආൾඋൾඍං: Borjomi-Kharagauli NP, vill. Nunisi, sifting in mixed forest, 41°56′41.5″N, 43°24′33.3″E, 880 m, 4 JJ, 2 spec., P. Hlaváč lgt. (CPHP). MඍඌκΗൾඍൺ-Mඍංൺඇൾඍං: Tbilisi NP, above Buriani, sifting in forest, 41.887274N, 44.876954E, 950 m, 28.v.2019, 2 JJ, M. Kocian lgt. (CPHP).

Redescription. Body convex. Length 3.30–4.20 mm, maximum width of elytra 1.10–1.35 mm. Head and pronotum matt, elytra light shiny, reddish-brown, legs and antennae of same colour, sometimes elytra and antennae more reddish. Rostrum curved downwards, with three longitudinal carinae, with short apical setae, scrobe deep, straight, not visible in dorsal view. Antennae long, with dense pubescence, scape elongately pedunculate at base, about 1.15– 1.20 × as long as funicule, funicule with 7 antennomeres;

Figures

Fig. 5. Caulomorphus besucheti Osella, 1970: a – aedeagus, dorsal view; b – aedeagus, lateral view; c – sternite IX and hemisternites; Caulomorphus talyschensis Reitter, 1897: d – aedeagus, dorsal view; e – aedeagus, lateral view; f – sternite IX and hemisternite. Scale bars: 0.2 mm.