Andes pallidus Wang & Chen, 2022

Andes pallidus Wang & Chen sp. nov.

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Fig. 9 View Fig

Diagnosis

The salient features of the new species include: apical right side of the ventral margin of periandrium with a long spinose process, bending upwards, directed cephalad, parallel to periandrium ( Fig. 9J View Fig ); apical ventral margin of periandrium with a bifurcated process ( Fig. 9M View Fig ); endosoma lamellar, basal left side of dorsal margin with small teeth ( Fig. 9L View Fig ).

Etymology

The specific name is derived from the Latin adjective ‘ pallidus ’, referring to the forewings which are largely pale, white.

Type material

Holotype CHINA • ♂; Guizhou Province, Wangmo County , Dayi town ; 25.4° N, 106.1° E; 14 Aug. 2020; Feng-E Li, Jian-Kun Long and Sha-Sha Lv leg.; GUGC. GoogleMaps

Paratype CHINA • ♂; same collection data as for holotype; GUGC GoogleMaps .

Description

MEASUREMENTS. Body length: male 7.0– 7.5 mm (N = 2).

COLORATION. General color yellowish white ( Fig. 9A–B View Fig ). Eyes brown, ocelli light red, semi-translucent. Antenna, vertex and face yellowish white. Rostrum yellowish brown. Anterior parts of pronotum white, posterior parts yellowish brown. Mesonotum yellowish brown. Forewing semi-translucent, whitish, costal vein with 3 small, spaced dark brown spots, from centre of ScP+ RA to near claval fork with a fawn-coloured stripe; middle part of clavus and behind clavus with an irregular puce spot, respectively; apical half of wing with yellowish brown patches.

HEAD AND THORAX. Vertex ( Fig. 9A, C View Fig ) 1.8× as long as wide; lateral carinae strongly elevated, median carina absent. Frons ( Fig. 9D View Fig ) 2.7× as long as wide. Pronotum ( Fig. 9A, C View Fig ) 1.1× as long as vertex; posterior margin forming a right angle. Mesonotum 1.1× as long as pronotum and vertex combined. Forewing ( Fig. 9B, E View Fig ) 2.3× as long as wide, with thirteen apical cells and six subapical cells; RP with 4 branches; MP with 5 branches: MP 11, MP 12, MP 2, MP 3 and MP 4; fork MP 1 +MP 2 basad of fork MP 3 +MP 4. Metatibiotarsal formula 8/7-8, second segment of hind tarsus with one platella.

MALE GENITALIA. Pygofer ( Fig. 9F–G View Fig ) in ventral view symmetrical; in lateral view, lateral lobes arcuate and extended caudally. Medioventral process rounded in ventral view. Anal segment ( Fig. 9F, H View Fig ) flat tubular, dorsal margin almost straight, ventral margin curved in lateral view; apical margin truncate, 2.2× as wide as long in dorsal view; anal style strap-shaped, not extending beyond anal segment. Gonostyli ( Fig. 9G, I View Fig ) symmetrical ventrally; in inner lateral view, dorsal margin concave, middle part of ventral margin convex, middle part expanded, then apical part gradually narrowed. Aedeagus ( Fig. 9J–M View Fig ) with seven processes. Apical ventral margin of periandrium with a long spinose process, bending upwards, directed cephalad, parallel to periandrium, directed right-dorsocephalad; apical dorsal margin of periandrium with a long spinose process, slightly curved, directed cephalad; below midlength of ventral margin of periandrium with a longish spinose process, directed dorsad; middle part with a short spinose process, directed cephalad, apex bifurcated, forming two spinose processes: dorsal one long, directed left-dorsocephalad, another short one directed ventrad. Endosoma lamellar, left side of base rolling upwards, right side of apex rolling inwards, nearly apical margin with a spinose process, directed dorsocephalad, basal left side of dorsal margin with small teeth.

Distribution

China ( Guizhou).

Remarks

This species is similar to Andes lachesis Fennah, 1956 in appearance, but differs in: (1) apical ventral margin of periandrium with a long spinose process, bending upwards, directed cephalad, parallel to periandrium (apical dorsal margin of periandrium with a spinose process in A. lachesis ); (2) basal ventral margin of periandrium with a bifurcated process ( A. lachesis without process in the same position); (3) endosoma lamellar, basal left side of dorsal margin with small teeth (endosoma coarsely shagreen or sub-fimbriate in A. lachesis ).