Neuroptera from WvnUrn China. 433 



Subfam . Calopteu ygisa. 

 Calopteryx Oherthiiriy sp. n. 



(^ . Head, thorax, and abdomen above bright niotallic 

 preen ; clypeus somewhat metallic blue ; labruni shining 

 black ; second joint of antenna? yellowish externally. Under 

 mouth-parts, legs, pectus, ventral surface of abdomen, and 

 anal appendages dull black. A pointed tubercle behind the 

 eyes. Spines of legs closely placed and very long. Superior 

 appendages much incurved, gradually incrassated to the apex, 

 so that each forms an incurved obtuse club, dentate externally. 

 Inferior a])pendages one third shorter, subcylindrical, slightly 

 curved, the apex truncate. 



AVings long and comparatively narrow, the inner margin 

 dilated in the middle ; nodus ])laced slightly beyond the basal 

 third. Colour deep black, with bluish reflexions (becoming 

 green on the posterior wings), the apical fourth (rather less 

 in posterior wings) hyaline, slightly smoky, sharply defined, 

 but the margin of this hyaline space, especially in the poste- 

 rior wings, is very narrowly blackish ; the costal cellules to 

 about halfway to the nodus with a long triangular subhyaline 

 space, and there are pale dots for a corresponding length in 

 the minute cellules of the base of the inner margin. Neura- 

 tion wholly black ; costal nervure not metallic j principal 

 sector contiguous to the median for a short space. About 48 

 to 50 antenodal nervules in anterior wing. 



? . Head as in male, but the labrum, a spot on each side 

 of it, and the under mouth-parts arc yellow, the labium 

 infuscated ; pectus yellow, which colour is continued along 

 the metathoracic suture, and the base of the abdomen at its 

 sides beneath is also yellow. The metallic green of the 

 abdomen above passing into bronzy after the fourth segment ; 

 ventral surface whitish pruinose ; lateral margins of eightli 

 and ninth segments narrowly yellow j appendages shorter 

 than the tenth segment, black. 



Wings : the portion that is black in the male is here 

 smoky brown, and in the posterior wings there is an appear- 

 ance of a broad darker band terminating the dark portion. 

 Neuration reddish ; a narrow elongate (3 millim.) whitish 

 false pterostigma commencing at the termination of the dark 

 portion of the wing (slightly before in the posterior), occu- 

 pying only the costal area, which is scarcely perceptibly 

 dilated thereby. About 40 antenodal nervules in the anterior 

 Aving. 



Length of abdomen, r^ 54-55 millim., ? 48-50 millim. 



