Dichochrysa flavinotala, Kang-zhen & Wen-zhu & Jun-zhi & Xing-ke, 2004

Kang-zhen, Dong, Wen-zhu, Li, Jun-zhi, Cui & Xing-ke, Yang, 2004, Three New Species Of Dichochrysa (Insecta: Neuroptera: Chrysopidae) From China, With A Checklist Of Chinese Dichochrysa, Raffles Bulletin of Zoology 52 (1), pp. 67-74 : 70-71

Dichochrysa flavinotala , new species

( Figs. 4 a-f)

Material examined. – Holotype - male, Yunnan Prov.: Menghai County: Mengdi, coll. Li Fa-Sheng, 17 May.1981.

Paratypes – 1 female ( ZRC), same data as holotype ; 1 female, Yunnan Prov.: Ruili County: Jiegao , 750m, coll. Yang Ji-Kun, 5 May.1981 ; 1 male 1 female, Yunnan Prov.: Eshan County: Huanian , 1100m, coll. Li Fa-Sheng, 2 Apr.1981 ; 1 male, Yunnan Prov.: Yuanjiang County, 380m, coll. Li Fa-Sheng, 4 Apr.1981 ; 1 male 1

female, Fujian Prov.: Xiamen City: Gulangyu, coll. Li Fa-Sheng, 25 Nov.1974.

Diagnosis. – Male adult (dried specimen). Length of body 7-8mm, of fore wings 11-12mm, of hind wings 9- 10mm.Vertex yellow, face pale yellow and with genal marks. Two reddish slender tranverse stripes under antennae, connected with two reddish longitudinal stripes on the inner lateral parts of genal marks; two reddish stripes above clypeus like a inverted “/\”; genal marks reddish-brown or blackishbrown, small, rectangular; clypeal marks present or absent. Maxillary palpi yellow on 1 st- 2 nd segments, brown on the dorsal parts of 3 rd- 4 th segments, brown on 5 th segment; labial palpi wholly yellow. Reddish slender stripes present between antennae and eyes. Scape swollen and longer than wide, reddish vitta present on outer-lateral parts; pedicel wholly red, flagellum from light brown to darkish brown gradually towards the apex. Prothroax wholly yellow, and pronotum longer than wide, from narrow on the anterior-parts to broad on the posterior-parts gradually and like a trapezia. Meso- and metathorax yellowish-green in dorsal and ventral view, green in lateral view. Legs yellow, claws strongly curved, squarely dilated at base ( Fig. 4a ).

In fore wings, densely clothed with brownish pubescence. Costal crossveins 16, green on the mid-parts and brown at two apical parts; pterostigma yellow and without crossvein. R-Rs crossvein 9, wholly yellowish-green; branches of Rs 8, wholly yellowish-green; Psm-Psc 6, wholly yellowish-green; cell im triangular, r-m crossvein above it. Cu yellowish-green; gradates brown on the mid-parts and green on two apicalparts, (inner/outer) = 3/5 (left wing) and 3/6 (right wing). In hind wings, costal crossveins 14, brown proximal to Sc; R- Rs crossveins 8, brown proximal to R; branches of Rs 6, wholly yellowish-green; Psm-Psc 4, yellowish-green; gradates light brown, inner/outer = 2/4.

Abdomen yellowish-brown. 7 th tergite as long as 8 th tergite ( Fig. 4b ). Ectoproct narrowed on the half lower parts. Callus cerci proximal to the upper-inner margin. Basal parts of 8+9 sternum as wide as apical parts. Two lateral lobes of gonarcus divided on the bottom; entoprocessus like a “Y”; pseudopenis slightly bifurcated at top and tapered off towards bottom ( Figs. 4c, d ). Tignum large and tapered off towards two apex ( Fig. 4e ). Two lateral parts of gonapsis expanded and arcussus slender ( Fig. 4f )

Etymology. – This new species is named according to the colour of prothroax.

Remarks. – This species distinctly differs from its allied species Dichochrysa allochroma (Yang & Yang, 1990a) in the wholly yellow prothroax and without longitudinal middorsal vitta. Besides, in D. allochroma , its two lateral parts of gonapsis do not expand, tignum is smaller than that of D. flavinotala , and entoprocessus is rectangle.

Distribution. – China: Fujian, Yunnan.

Figures

Fig. 4. Dichochrysa flavinotala, new species, male. a. claw; b. apex of abdomen in male; c. male genitalia, dorsal view; d. male genitalia, lateral view; e. tignum; f. gonapsis.