Redescription of Heterocerus fausti Reitter, 1879, bona species (Coleoptera, Heteroceridae) Author Sazhnev, Alexey S. text Zootaxa 2018 2018-06-28 4441 3 597 600 journal article 29788 10.11646/zootaxa.4441.3.12 58c8ec85-77bc-49f4-ada7-3c923d1ec269 1175-5326 1301560 B2D326BE-54E6-4E6E-9DF6-00220F04EC41 Heterocerus fausti Reitter, 1879 ( Figs. 1, 2B, 3 ) Heterocerus fausti Reitter, 1879 : 546 stat. nov. Type locality. Azerbaijan : Baku . Type material examined. Syntypes : “ Heterocerus Fausti Rtt ” [Reitter's handwriting], “Caucasus” [red label], “к. А. Яковлева” [cоllеctiоn оf А. Jаcоvlеv—in Russiаn], 2♂♂ (ZISP); “Bаku Fаust.”, gоldеn squаrе plаtе, “ Heterocerus Fausti Reitt. ” [Reitter's handwriting], 2♀♀ [one specimen without head] (ZISP). Additional material examined. 9 exs. TURKMENISTAN . Balkan Region ( Velayat ): Uzun-Ada (now the territory of Hazar Nature Reserve ), 15.04.1895 , leg. Varentsov , 7 exs. ( ZISP ) ; Turkmenbashi ( Krasnovodsk ), 0 6.1900, leg. P. Maksimovitsh , 1 ex. ( ZISP ) ; Esenguly, 3.07.1932, unknown collector, 1 ex. (IBIW). Diagnosis. Body size 3.8–5.0 mm. Body moderately elongated, dorsal-ventrally compressed ( Fig. 1 ). Males and females do not differ. Aedeagus as in Fig. 3 . FIGURE 1–4. Heterocerus fausti Reitter, 1879 , 1—male from Turkmenistan, Uzun-Ada (photo by A.V. Kovalev). Metatarsomers Heterocerus spp. 2A— H. parallelus Gebler, 1830 , South Kazakhstan; 2B— H. fausti , Turkmenistan; 2C— H. fossor Kiesenwetter, 1843 , Russia, Dagestan; 2D— H. flexuosus Stephens, 1828 , Kazakhstan; 2E— H. persicus Mascagni, 1989 , Iran. Male genitalia of Heterocerus fausti , 3A—penis, 3B—tegmen. Scale bar—0.5 mm. Tegmens Heterocerus spp. 4A— H. parallelus , South Kazakhstan; 4B— H. fausti , Caucasus ; 4C— H. fossor , Russia, Dagestan; 4D— H. flexuosus , European part of Russia (Litovkin et al ., 2013), 4E— H. persicus , Iran. Scale bar—0.5 mm. FIGURE 5. Distribution of Heterocerus fausti Reitter, 1879 . Red circles—studied material. Heterocerus fausti is similar in body form and drawing of elytra on Heterocerus parallelus but can be easily distinguished by the shape of its aedeagus ( Fig. 4A–B ) and smaller size. Redescription. Color. Ground color is yellow or red-yellow; a combination of black-brown blotches on the pronotum, and brown blotches of elytra and abdomen form a characteristic pattern. Head and labrum are black-brown. Antennae completely yellow. Pronotum is black-brown with a more or less wide yellow edging on the sides and narrow yellow stripe along the front edge. Scutellum is black-brown. Drawing of elytra characteristic of flexuosus species-group sensu Charpentier (1965) . Yellow pattern of each elytron normally forms edging, S-shaped basal mark, M-shaped medial mark, apical spot and suture stripe. Dark pattern of the elytra brownish almost blending with the yellow background. Prosternum black-brown with yellow episternae and yellowish front margin. Mesepisternum and metepisternum blackbrown. Abdomen black-brown with yellow pattern in form of edging. Legs, except dark metacoxa, yellow. Head. Clypeus transversal, widely incised on the front edge. Antennae 11-segmented with 7-segment club. Hairs whitish. Puncturing uniform. Thorax. Pronotum not bordered basally; slightly narrower or comparable in width with base of elytra in females, and slightly wider than elytra base in males. Hairs on the disc are double: comprise dense, short, pressed, and long and standing hairs; whitish. Puncturing very dense, fine and uniform. Elytra covered with erect hairs; hair length is comparable with the length of few first spines of mesotibia; hairs slightly longer along sides and near the elytral apex; hairs whitish. Legs of structure typical for family, covered with whitish hairs. Claws of tarsus noticeably longer or equal to the last tarsomere ( Fig. 2 ). Abdomen . Abdomen covered with whitish hairs. Postmetacoxal lines absent. Remarks. The records of Heterocerus fausti for Uzbekistan ( Jacobson, 1913 ; Zaitsev, 1946 ) are not confirmed. Specimen from Uzbekistan (Qamashi) signed of F.A. Zaitsev as “ Heterocerus fausti ” is Heterocerus heydeni Kuwert, 1890 . Ecology. The long claws are probably an adaptation to the psammophilous way of life. Distribution. Pre-Caspian Region including Caucasus: Azerbaijan , West Turkmenistan ( Fig. 5 ).