NORTH AMERICAN NEUROPTERA. 



285 



BerUn. The locality is doubted in the Monogr. Gomphines only for 

 geographical reasons, as the same species is found in Asia and Polynesia, 

 but the specimen in the Berlin Museum is surely from British Guyana. 



41. Ictinus spec (supposition). 



Three younger nymphae, in alcohol, females ; two from the Sutledge 

 River, middle Himalaya, and one from East Jumna, out of the holy 

 tank near Delhi, by Rev. M. M. Carleton, all together with the nymphae 

 of the foregoing species. Length 12 to 21 mm. ; breadth 8 to 11 mm. 



Very similar to the foregoing species, differs as follows : front part of head just 

 behind the antennre externally prolongated in a strong conical process; prolonga- 

 tion of the lateral part of the head just beneath the eyes stronger, visible from 

 above outside of the eyes; occiput shorter, considerably notched behind, angles 

 less rounded ; tubercles near the notch stronger : mask produced in middle part 

 of front border in a longer rounded lobe, with a dozen teeth on each side; palpus 

 inside with only seven to eight smaller incisions nearer to tip, basal part smooth; 

 abdomen more convex beneath, after segment 7 shorter, the margins of 9th seg- 

 ment less oblique ; lateral spines on 4th to 6th longer, sharper; on 9th very short, 

 blunt ; lateral edges of segments 7 to 9 without a comb of strong, arcuate spines, 

 only hairy; anal appendages shorter, more blunt. 



There can be no doubt that these nymphae belong to a different species 

 though collected together with the other ones. I have no clue to a sup- 

 position. 



42. Ictinus piignax? (supposition). 

 Selys Monogr. Gomphin. p. 290. 



One dry male nympha by Mr. Livingston, collected on his first voyage 

 through S. Africa, locality not given ; presented by him to the late Prof. 

 J. Wyman, and by the Professor to the Museum. Length 28 mm. ; 

 breadth 15 mm. 



Very similar to the nympha of I. prmcox. but for some characters more similar 

 to the' other species from East India; stout; head large, cordate; tubercle pro- 

 jecting beneath the eye visible from above, connected with the projecting tubercle 

 near the mouth by a' concave ridge ; antennae short, with an external projection 

 near base, third joint thinner than second, straight, twice the length of the two 

 basal, cylindrical, somewhat flattened above; fourth a very short tubercle; mask 

 square, "rather broader than long, middle third of fore border produced in a nearly 

 semi-circular lobe with pavement teeth and a short comb of scales and some lon- 

 ger hairs on each side; palpus very strong, apical half blackish, short, arcuate, 

 hooked at tip, inside with several molar incisions in the middle: movable hook 

 sharp, arcuate, not reaching the base of the opposite one ; occiput shorter than the 

 front part, rough, nearly inserted in the eyes, widely notched behind, hind angles 

 bent up, a smaller tubercle on each side of the middle: prothorax narrower than 

 head, saddle shaped, anterior part an elevated ridge, side angles bent up, in mid- 

 dle of hind border a square tubercle; wing cases reaching half of 7th segment 

 (therefore the nympha may be nearly full grown) ; abdomen ovoid, broadest at 

 end of 7th segment, flattened below, strongly roof shaped above; segments 1 to 5 



