Dicerapanorpa diceras ( MacLachlan, 1894 ) Zhong & Hua, 2013

Zhong, Wen & Hua, Baozhen, 2013, Dicerapanorpa, a new genus of East Asian Panorpidae (Insecta: Mecoptera: Penorpidae) with descriptions of two new species, Journal of Natural History (J. Nat. Hist.) 47 (13 - 14), pp. 1019-1046 : 1041-1043

Dicerapanorpa diceras ( MacLachlan, 1894) , comb. nov.

( Figure 11 )

Panorpa diceras MacLachlan, 1894: 423 ; Esben-Peterson, 1921: 36; Tjeder, 1936: 9; Carpenter, 1938: 270; 1948: 28; Cheng, 1957: 15.

Panorpa grahami Carpenter, 1938: 272 , synonymized by Carpenter, 1948: 28.

Specimens examined

Sichuan: 1♂, Yulingong (2700 m), Kangding, 30 May 1983, leg. XZ Zhang ( IZAC) ; 2♀♀, Kangding, 22 June 1983, leg. SY Wang ( IZAC) .

Diagnosis

This species is similar to D. triclada (Qian and Zhou) , but can be distinguished from the latter by the hypovalves of males greatly expanded apically; basal process of gonostylus squared in basal half and acute in distal half (cf. triangular); paramere with the basal branch straight and elongate, almost extending to the median process of gonostylus (cf. short and curved), the lateral branch greatly curved (cf. straight).

Redescription – male

Body yellowish brown; vertex with a black spot around ocelli; rostrum with two black lateral longitudinal stripes. Dorsum of body with two black lateral longitudinal stripes extending from pronotum to tergum V; notal organ of tergum III not prominent; tergum VI with two short anal horns ( Figure 11A ).

Wings. Forewing length 14.7 mm, width 4.0 mm; dusky hyaline without markings except for greyish apical band. Hindwings length 14.0 mm, width 3.5 mm, similar to forewings in pattern ( Figure 11A ).

Male genitalia. Genital bulb oval. Epandrium broad basally and tapering toward apex with a deep broad emargination between paired apical lobes, which bear long bristles apically ( Figure 11D ). Hypovalves slender in basal half, and abruptly broadened in distal half with the apex rounded ( Figure 11C ), reaching the base of gonostylus, and with short black bristles along the inner margin. Gonostylus slender, with a large triangular median process on the inner margin; the basal process somewhat squared in basal half and triangular in distal half. Paramere trifurcate, with the basal branch straight and markedly elongate, almost extending to the median process of gonostylus; the lateral branch extremely curved, with dense microsetae along the inner margin; the mesal branch extending to the median process of gonostylus, and covered with microsetae basally. Ventral valves of aedeagus inconspicuous, blunted apically; dorsal valves broad at base, with separated apex ( Figure 11E ).

Redescription – female

Body yellow; dorsum with two lateral black longitudinal stripes extending from pronotum to tergum VI. Forewing length 15 mm, width 4.0 mm; hindwing length

13.5 mm, width 3.5 mm, with the apex more acute, similar to male in pattern ( Figure 11B ).

Female genitalia. Subgenital plate almost oval, with a distal process and thick setae on the distal part ( Figure 11F, G ).

Distribution

China (Sichuan Province).

Figures

Figure 11. Dicerapanorpa diceras, from Kangding, Sichuan. (A) Male, dorsal view; (B) female, dorsal view (C, D) genital bulb of male, ventral and dorsal views; (E) aedeagus complex, ventral view; (F) abdominal segments IX–XI of female, lateral view; (G) same, ventral view. Scale bars: A and B = 3.0 mm; C and D = 0.5 mm; E = 0.2 mm; F and G = 0.3 mm.