Panorpa stigmosa Zhou, 2006

Li, Ning, Wang, Ji-Shen & Hua, Bao-Zhen, 2021, Morphological phylogenetic analyses and taxonomic revision of the Panorpa davidi group (Mecoptera: Panorpidae), Arthropod Systematics & amp; Phylogeny 79, pp. 309-342 : 309

Panorpa stigmosa Zhou, 2006

Figs 20 , 21

Panorpa stigmosa Zhou, 2006: 274. Type Locality: Chishui Suoluo National Nature Reserve, Guizhou, China. Wang & Hua, 2018: 420, figs 5-154-1-5-154-2.

Diagnosis.

This species can be recognized by the following features: (1) frons, vertex, occiput and ocellar triangle black brown to black (Figs 20B-C , 21B-D ); (2) wing membrane hyaline, with markings scattered into series of spots or only with pterostigma black brown in some males (Fig. 21A-C ); (3) pro-, meso- and metanotum blackish brown (Fig. 20B-C ); in males, (4) ventral termination of gonocoxites bearing 3-5 long setae and acute protuberance on inner apex (Fig. 21G ); (5) parameres crossed mesally, twisted in S-shape (Fig. 21G, I ); in females, (6) main plate of medigynium broad, long, basal half narrow, distal half broad; small lateral basal plates on basal half not extended to the base; axis extended beyond main plate quarter of its length anteriorly, not extruded posteriorly (Fig. 21K-L ).

Material examined.

CHINA - Yunnan Prov. • 19♂♂, 21♀♀; Yulong Snow Mountain ; 6 Jun. 2009; Jiang-Li Tan leg. • 23♂♂, 31♀♀; Weixi, Pantiange ; 2600 m a.s.l.; 13 Jun. 2016; Gui-Lin Hu & Wei Du leg. • 35♂♂, 28♀♀; Pantiange ; 27°19′27″N, 99°12′50″E; 2530 m a.s.l.; 3-4 Jun. 2019; Ning Li & Lu Liu leg.

Measurements.

Male: FL = 11.0-11.7 mm, FW = 2.4-2.7 mm; HL = 10.0-10.7 mm, HW = 2.3-2.6 mm. Female: FL = 11.2-12.1 mm, FW = 2.5-2.8 mm; HL = 10.4-11.1 mm, HW = 2.4-2.7 mm.

Description.

Male: Head (Figs 20B , 21B, D ): Frons, vertex, occiput and ocellar triangle blackish brown; rostrum dark brown, with labrum blackish brown. Maxillary and labial palps dark brown, with distal segments darker. Antenna blackish brown. Thorax (Figs 20B , 21B, D ): Pronotum black, with 10-16 stout setae along anterior margin. Meso- and metanotum black, without pale mesal stripe; scutella blackish brown. Pleura yellow. Legs pale yellowish brown with distal tarsomere black. Wings (Figs 20B , 21A-B ): Membrane hyaline, with markings dark brown to black brown. Wing markings variable: only with pterostigma in some males; scattered into series of spots in most individuals. Forewing apical band broad, split into series of spots arranged in two rows; pterostigmal band broad, complete anteriorly, scattered into series of small spots posteriorly; marginal spot represented by small rounded spot between R and M; basal band incomplete, reduced to irregular spot usually between CuA and CuP; basal spot usually faint or absent. Abdomen (Figs 20B , 21B, E ): T2-T5 black. Notal organ of T3 covering acute postnotal organ of T4. A6 cylindrical with basal two-thirds black and distal one-third reddish brown. A7 and A8 yellowish brown, constricted basally. Genitalia (Fig. 21E-I ): Genital bulb oval, yellowish brown. Epandrium long, broad, slightly tapered towards deep square terminal emargination, bearing numerous long dense setae. Hypandrium with shortened basal stalk and pair of hypovalves; hypovalves broadened from middle, extending to four-fifths length of gonocoxites, bearing row of long black bristles along inner margin of distal half. Gonocoxite bearing 3-5 long setae on inner apex ventrally, inner margin bearing acute protuberance. Gonostylus with obtuse triangular median tooth and large basal cup on inner margin. Parameres crossed, reaching apex of gonocoxites. Dorsal valves of aedeagus with enlarged dorsal process on subapical portion dorsally. Ventral valves greatly shortened. Lateral processes distinct, triangular.

Distribution.

China: Guizhou; Yunnan.

Remarks.

This species was described from a single female specimen from Chishui, Guizhou with promient scattered wing markings. The specimens obtained from Yunnan match the characters of P. stigmosa . Here, the male of this species is described for the first time.

Figures

Figure 20. Live adult habitus and habitat of Panorpa stigmosa Zhou, 2006. A. Habitat in Pantiange, Weixi, Yunnan. B. Male, dorsal view. C. Female, dorso-lateral view. Photos by Ning Li.

Figure 21. Panorpa stigmosa Zhou, 2006 from Yulong Snow Mountain (A) and Weixi (B-L), Yunnan. A - B, D - I. Male. A. Left forewing. B. Habitus, dorsal view (removing left forewing). D. Head, frontal view. E. Habitus, lateral view. F - G. Genital bulb, dorsal and ventral views. H - I. Aedeagal complex, lateral and ventral views. C, J - L. Female. C. Habitus, dorsal view. J. Terminalia, ventral view. K - L. Medigynium, ventral and dorsal views. Scale bars: B - C = 5 mm; D = 0.5 mm; A, E = 2 mm; F - L = 0.2 mm.