26 



NEUROPTERA. 



pterostigma narrow, widened towards the apex, 

 rounded, the internal angle with a black spot. 



Length 1| lin. ; exp. 2| lin. 



Hah. England. 



10. Ps. HYALiNus, Steph. 111. 123, 23. 



Pitch-brown, paler towards the mouth ; abdomen yellow 

 above at the base, beneath reddish ; legs pale, tarsi 

 darker; wings pale grey, veins brown; pterostigma 

 narrow, slightly rounded, rather darker. 

 Length 2 lin. ; exp. 3 lin. 

 Sah. Near London, June. 

 Ohs. On comparing the types, I noted down that Ps. 

 hipunctatus, Steph. 111. 123, 24, and Ps. sexpunctatus, 

 Steph. 111. 123, 25, are only more fully coloured specimens 

 of Ps. hyalinus. I now find that the species which T have 

 labelled in my collection, from a comparison with the type, as 

 Ps. hyalinus, is scarcely to be distinguished from Ps. phce- 

 o;?^e/W5 (male) ; the two other species will likewise belong to 

 it. I must, however, observe that I have never met with ex- 

 amples of Ps. phceopterus with spotted wings, and that the 

 correctness of my determination appears therefore doubtful. 



+ X Posterior marginal cell jn'esent (Ccecilius, Curtis). 



11. Ps. FLAViCEPS, Steph. 111. 124, 28; Ps. si7'iatvlus, 



Steph. 111. 124, 27; Ps. irroraius, Curt. B. E., pi. 

 648, 27. 

 Yellow ; head spotted with brown ; forehead striped with 

 brown ; thorax brown ; abdomen brown, laterally 

 yellow; antennae yellow, short, slightly pubescent; 

 legs yellow, tarsi darker ; anterior wings hyaline, in 



