Trismelasmos vavilovi Yakovlev, 2022

Yakovlev, Roman V., 2022, New species of Trismelasmos Schoorl, 1990 (Lepidoptera, Cossidae: Zeuzerinae) from Eastern Indonesia, Ecologica Montenegrina 50, pp. 43-46 : 44-46

Trismelasmos vavilovi Yakovlev sp. nov.

http://zoobank.org/ urn:lsid:zoobank.org:act:A97B689F-0BF4-4D71-BF77-5BF510880F9B

Figs 1−2

Material. Holotype ( Fig. 1 ): male, Indonesia, Lesser Sundas , Pantar Isl., Tanah Labang, 09−21.iii.2006, leg. Jakl (Museum Witt, Munich, Genitalpräparat Heterocera Nr. 25.298).

Paratypes: 4 males, same locality (MWM) ; 3 males, Indonesia, Lesser Sundas , Lomblen Isl., S. Coast, 100−400 m, 08−14.xi.2006, leg. Jakl (MWM) ; 4 males, Indonesia, Alor Isl. , 8º16′S, 125º05′E, Moru, 7 km S Kalabahi, 25.03− 03.iv.2006, leg. Jakl (MWM) .

Description. Length of fore wing 25−31 mm. Antenna short, proximal half bipectinate, distal simple filiform. Thorax brown from top, tegula covered with ocher scales; abdomen densely covered with ocher scales. Fore wing with poorly expressed pattern, thin brown stroke along costal edge from base to middle of its length, wing light-brown, light-ocher with rare brown dots in radial and cubital area and small brown stroke at base of cubital trunk. Hind wing light-brown with ocher portion along costal edge, without pattern.

Male genitalia ( Fig. 2 ). Genital structure typical of the genus. Uncus short with parallel edges, apex pyramidal; gnathos arms thin, belt-like; gnathos absent; costal edge of valve straight, apex semicircular, abdominal edge semicircular, uneven, expressed deep notch on border between proximal and medium thirds; juxta robust with long leaf-like lateral processes; saccus very massive, cylindrical, apically semicircular; phallus shorter than valve, thin, almost straight, vesical aperture 2/3 of phallus in length, with long thin rodlike cornutus in lateral surface of vesica.

Female unknown.

Diagnosis. The new species clearly differs from all the known species of the genus in the poorly modified pattern of the fore wing and in the valve with an expressed deep notch on the border between the proximal and medium third of the valve.

Distribution. Indonesia (Lesser Sunda Islands) ( Fig. 3 ).

Etymology. The new species is named after the great Russian botanist, geneticist and breeder, academician Nikolai Vavilov (1887−1943) ( Fig. 4) the creator of the doctrine of the cultivated plants origin centers, who died in the Stalinist prisons due to a false accusation.

Figures

Figure 1. Trismelasmos vavilovi Yakovlev sp. nov. – holotype (Museum Witt, Munich).

Figure 2. Trismelasmos vavilovi Yakovlev sp. nov. – male genitalia (Slide: Genitalpräparat Heterocera Nr. 25.298).

Figure 3. Distributional map of Trismelasmos vavilovi Yakovlev sp. nov.