170 Mr. K, MacLachlan^s Monograph of 



Wings very unequal in the male ; the posterior pair 

 rudimentary, in the form of small, scarcely evident, 

 lobes, with one strong vein in the middle. Anterior 

 wings somewhat narrow and elongate, obtusely rounded 

 at the apex, convex above ; costal veinlets for the most 

 part simple, a few forked ; costal area rounded ; suh- 

 costa and radius separated to the apex, distant ; sub-costal 

 area broad, one transverse veinlet near the base, two in 

 the middle, and two near the apex ; one forked sector, 

 the upper branch of which runs parallel with the radius ; 

 veins all simply furcate on the margins; gradate veinlets 

 in oblique series, the outer of which is complete, the 

 inner rudimentary ; all the veins and veinlets very strong, 

 and, with the margins, strongly ciliated ; a rudimentary 

 vein in the form of a tubercle in each marginal inter- 

 stice. 



The female is said to have developed posterior wings. 

 Burmeister speaks of three sectors, but I think his two 

 first are more properly referred to the two cubiti. I am 

 indebted to my friend Mr. Rye for the figure at PI. IX. 

 fig. 5 ; the abdomen is probably represented as too 

 elongate and pointed, but the unique example from which 

 the figure was drawn is not in a sufficiently good condi- 

 tion to ensure absolute correctness in this respect. 



1. PsECTBA DiPTEEA, Burmeistor. 



Hemerobius dipterus, Burm. Handb. ii. 973 (1839) ; 

 Curt. Tr. Ent. Soc. N. S. iii. 56 ; M^Lach. Ent. Mo. 

 Mag. ii. 269. 



Shining blackish-fuscous, with golden pubescence. 



Antenn(x with about forty-five joints, the basal one 

 long and much dilated. 



Thoracic lobes paler than the rest of the body, dark 

 castaceous. 



Legs pale yellowish, the tip of the femora, base of the 

 tibise, and terminal joint of the tarsi, fuscous. 



Wmgs sub-hyaline, shining, slightly testaceous; with 

 fuscous spots, and the gradate veinlets broadly margined 

 with fuscous ; veins for the most part pale, with distant 

 black tubercles, from each of which springs a blackish 

 hair ; all the marginal forks and gradate veinlets deep 

 fuscous ; six veinlets in the outer gradate series, and 

 two in the inner, but between the latter and the base are 



