Givarbela drechseli Penco, Yakovlev, Naydenov & Witt, 2019

Penco, Fernando C., Yakovlev, Roman V., Naydenov, Artem E. & Witt, Thomas J., 2019, Two new species of the genus Givarbela Clench, 1957 (Lepidoptera: Cossidae: Hypoptinae) from South Neotropics, Zootaxa 4577 (3), pp. 596-600 : 597-598

Givarbela drechseli Penco, Yakovlev, Naydenov & Witt , sp. nov. ( Figs 4 , 7 , 11)

Material. Holotype: ♂, Paraguay, Dep. Amambay, Laguna Ciervo , S 22°20′ W 56°11′; 24–27.vi.2016, leg. U. Drechsel ( MWM).

Description. Male. Head: forehead and vertex brownish, lighter on forehead; color of antenna rod and palpi scaling from chocolate to dark brown; tip of labial palpus paler, antenna bipectinate, rami three times as long as diameter of rod

of antenna. Thorax: covered with long hairs; pronotum of hazel color; dorsally brown, mixed with some gray hairs; fore femur and tibia dark brown; tarsal segments brownish. Abdomen: concolorous with thorax; anal tuft short and paler than rest of abdomen, spreading but not spatulate. Fore wing: length 11 mm, basally brown, costa with pale stroke, thin white oblique transverse band in discal area, large round brown field in postdiscal area near medial and cubital veins, field of fine undulated brown and white elements from postdiscal area to outer edge of wing, fringe brown, unicolorous. Hind wing pale, basally with blurred brown field, undulated with brown and white on outer area, fringe brown, unicolorous.

Male genitalia. Uncus short, wide, trapezoidal, apically semicircular; tegumen trapezoidal; gnathos arms thin, gradually narrowing from base to apices, not fused; gnathos reduced; valva with strongly curved edged (apical third significantly wider), on inner surface of valva small straight harpe with small denticles, harpe positioned obliquely to abdominal edge, apex of valva semicircular; transtilla uncinate, dorsally with robust prong, abdominally with poorly expressed prong; juxta triangle, with short lateral processes diverged at angle of 45°; saccus robust, apically mastoid; phallus thin, 1,5 times shorter than valva, straight, slightly narrowing apically, vesica aperture in dorso-apical position, vesica without cornuti.

Female unknown.

Distribution. Known only from Paraguay (Department Amambay) ( Fig. 8 ).

Diagnosis. The new species is similar to G. steinbachi , from which it differs by a number of characters: the oblique white band on the fore wing in G. drechseli is narrow, in G. steinbachi wide; the harpe (marked on the Figs 5 and 7 ) in G. drechseli is poorly developed; in G. steinbachi it is distinctively developed, with its acute process larger; the phallus in G. drechseli is straight, in G. steinbachi curved as s-shaped.

Etymology. The species is named after the collector of this specimen, U. Drechsel (Asunción).

Figures

FIGURE 8. Distribution map of Givarbela Clench, 1957.

FIGURES 1−4. Givarbela, adults: 1. G. steinbachi Clench, 1957, paratype, male, Buenavista, E. Bolivia, Alt. 400 m. J. Steinbach. (ZSM); 2. G. decolorata sp. nov. holotype, male (MLP); 3. G. decolorata sp. nov. paratype, male (MWM); 4. G. drechseli sp. nov. holotype, male (MWM).

FIGURES 5−7. Givarbela, male genitalia (all in tubes): 5. G. steinbachi Clench, 1957, paratype, male (ZSM); 6. G. decolorata sp. nov. paratype, male (MWM); 7. G. drechseli sp. nov. holotype, male (MWM).