AQUATIC INSECTS IN NEW YOEK STATE 



46J 



cinereous, front pair dusky spotted all over, spots minute and 

 more obscure at costal margin, some spots larger; hind pair 

 slightly spotted. Length of body 20mm. (The figure measures 

 26mm); length to tip of wings about 55mm; alar-expanse 75 to 

 80mm. 



In Chile at Valparaiso and Valdivia. Blanchard said, Esta 

 especie parece rara en Chile. 



I have seen no specimens of this species, and therefore I quote 

 Blanchard's description: 



Ch. omnino cinerasceus; capite pallido-variegato; prothorace 

 rugoso, linea postica pallida; alis cinereis, anticis undique fusco- 

 maculatis, maculis minutis margine costali obscurioribus, non- 



•^<^ ^ 1st A 



Fig. 25 Fore wing of Neuromus pallldus x3 



nullis majoribus; alis posticis leviter maculatis; pedibus abdom- 

 ineque coucoloribus. Longit., corpor. 10 lin; enverg. alar., 30 

 liu. 



Hagen afterward said his species equals 0. cinerasceous 

 Blanchard. 



PTEUB/OMus Kambur 



Adult. Color from nearly black to light yellow; usually some- 

 what smaller than Corydalis adults; mandibles of male never 

 elongated nor annular as in Corydalis. Cheek once or twice 

 toothed or with a sharp angle. Prothorax quadrangular to 

 cylindric, narrower than the head, longer than broad and shorter 

 than the mesothorax and the metathorax combined. Three 

 large approximate ocelli facing outward. Antennae always fili- 

 form or nearly so, and usually not longer than the head and 

 thorax combined. Medius with more than two branches 

 [flg.25] ; cross veins between branches of radius, from 10 to 

 30, but the number is rather constant in each species ; Cu^ with 

 one or two accessories in some species, to four or five in others. 



larva. No published account of Neuromus larvae has ap- 

 peared. They are doubtless very rare in the United States, and 



