Augilina triaina Chen & Gong, 2021

Gong, Nian, Yang, Lin & Chen, Xiang-Sheng, 2021, First record of the genus Augilina Melichar, 1914 (Hemiptera, Fulgoromorpha, Caliscelidae) from China, with descriptions of two new bamboo-feeding species, European Journal of Taxonomy 744 (1), pp. 38-48 : 43-46

Augilina triaina Chen & Gong sp. nov.

urn:lsid:zoobank.org:act:29E0419B-44A4-4E5E-9564-68F121C74002

Figs 15–34

Diagnosis

Posterior margin of pygofer in lateral view with one finger-like process Dorsally ( Fig. 23 ); posterior margin of pygofer with two small medioventral processes ( Figs 24, 26 ); anal style large ( Figs 22–23 ); aedeagus with almost straight in apical half ( Fig. 27 ); genital styles with three processes ( Figs 25–26 ).

Etymology

The specific name is DeriveD from the Latin worD ʻ triaina ʼ which refers to the genital styles with three processes.

Material examined

Holotype CHINA • ♂; Yunnan Province, Jinghong City, Menglong Town ; 21°58′ N, 100°68′ E; 23 Jun. 2019; Nian Gong leg.; on bamboo; IEGU.

Paratypes CHINA • 15 ♂♂, 24 ♀♀; same collection Data as for holotype; Hongxing Li, Fenge Li anD Shiyan Xu leg.; IEGU • 1 ♂, 2 ♀; Yunnan Province, Mengla County, Menglun Town ; 21°50′ N, 101°00′ E; 27 Jul. 2013, Yuan Liu leg.; on bamboo; IEGU .

Description

MEASUREMENTS. Body length including forewing: male 6.1–6.4 mm (N = 3); forewing length: male 5.1–5.3 mm (N = 3).

COLORATION. Body mainly yellowish green ( Figs 15–19 ). Eyes taupe. Antennae with one black spot at apex of pedicel. Pronotum and mesonotum with wide median light red stripe. Spines of legs with black apices.

HEAD AND THORAX. Vertex including eyes as wide as pronotum. Vertex ( Fig. 17 ) longer in middle line than broad at widest part (2.3:1). Frons ( Fig. 18 ) 2.4 times as long as middle line at widest part. Pronotum ( Fig. 17 ) shorter in middle line than vertex (1:2.5). Mesonotum ( Fig. 17 ) 0.8 times as long as vertex and pronotum together in middle line. Forewing ( Fig. 20 ) longer in middle line than broad at widest part (4.9:1); veins visible, with nodal line, R and MP with common stem, R with 3 branches before nodal line; after nodal line, R single, MP with four branches, CuA single, Pcu uniting A1 at basal third of clavus. Hindwing ( Fig. 21 ) 2.12 times as long as broad at widest part, ScP and RP single, MP and CuA with two branches.

MALE GENITALIA. Anal segment in dorsal view ( Fig. 22 ), 1.4 times as long as middle line at widest part, broadening apically, broadest at apex; in lateral view ( Fig. 23 ), dorsal margin slightly convex, ventral margin slightly concave. Anal style large ( Fig. 22 ). Posterior margin of pygofer in lateral view ( Fig. 23 ) with one finger-like process Dorsally, upper ⅔ concave, lower ⅓ almost straight, base convex; in posterior view ( Fig. 24 ), nearly oval, 1.4 times as long as widest part; posterior margin in ventral view ( Fig. 26 ), with two short and small medioventral processes, anterior margin almost straight. Genital styles ( Figs 25–26 ) with median portion broad, large, each with three processes, 2.7 times as long as widest part. Aedeagus ( Figs 27–28 ) tubular, slender and long, tapering apically, in lateral view, strongly curved to the basement, with almost straight apical half.

FEMALE GENITALIA. Abdominal sternite VII ( Figs 30, 32 ) in ventral view symmetrical, posterior margin concave, with a meDioventral process. Anal tube ( Figs 29, 31 ) short. Gonapophysis VIII (first valvula) ( Fig. 33 ) elongate, with six spines at apical margin. Gonapophysis IX (second valvula) ( Fig. 34 ) with two symmetrical lobes, each lobe with many spines at apical margin and dorsal margin. Gonoplac (third valvula) with outer surface shagreen ( Figs 29–30 ); in lateral view ( Fig. 29 ) with median portion broad, large, apical margin convex; in ventral view ( Fig. 30 ) blade-like.

Host plant

Bamboo ( Fig. 36 ).

Distribution

China (Yunnan) ( Fig. 35 ).

Remarks

This new species is similar to A. tetraina sp. nov., but Differs in: 1) anal style large (vs small in A. tetraina sp. nov.); 2) aedeagus with almost straight apical half (vs broadly concave in A.tetraina sp. nov.); 3) genital styles with three processes (vs with four processes in A. tetraina sp. nov.).

Figures

Figs 15–28. A. triaina Chen & Gong sp. nov., ♂ (holotype, IEGU). 15. Habitus, dorsal view. 16. Habitus, lateral view. 17. Head and thorax, dorsal view. 18. Face. 19. Head and thorax, lateral view. 20. Forewing. 21. Hindwing. 22. Anal segment, dorsal view. 23. Male genitalia, lateral view. 24. Pygofer, posterior view. 25. Genital styles, lateral view. 26. Pygofer and genital styles, ventral view. 27. Aedeagus, lateral view. 28. Aedeagus, dorsal view. Scale bars: 15–16, 20–21 = 1 mm; 17–19 = 0.5 mm; 22–28 = 0.3 mm.

Figs 29–34. A. triaina Chen & Gong sp. nov., ♀ (paratype, IEGU). 29. Genitalia, lateral view. 30. Genitalia, ventral view. 31. Anal segment, dorsal view. 32. Abdominal sternite VII, ventral view. 33. Gonapophysis VIII, lateral view. 34. Gonapophysis IX, lateral view. Scale bars: 29–30, 32 = 0.5 mm; 31, 33–34 = 0.2 mm.

Fig. 36. The habitat of A. triaina Chen & Gong sp. nov. (23 June 2019, Jinghong City). Photograph by Nian Gong.

Fig. 35. Geographic distributions of species of Augilina Melichar, 1914.