394 ENTOMOLOGICAL NEWS. [Nov., IQII 



The total length of the nymph would be about 23 mm. ; the nine seg- 

 ments of the abdomen remaining measure 14 mm., segment 10 and the 

 appendages being missing. The fore and middle legs are equi-distant 

 at the base, the tibiae are without burrowing hooks, the wing cases 

 reach posteriorly to the middle of the fourth abdominal segment, there 

 are sharp thorn-like lateral spines on abdominal segments 5-9, slightly 

 increasing in length posteriorly, those of the Qth segment being about 

 one-eighth as long as the body of that segment. There are dorsal 

 hooks on segments 3-9, slightly diminishing in size posteriorly and 

 becoming declined at their tips. The head is crushed and broken. 



The labium of this species lacks the pair of brown denticles of the 

 preceding species, but has the end hooks of similar form, larger than 

 in G. stiginatus. 



Figure 3 is the labium of Cabot's nymph No. 7, which was 

 also Hagen's No. 28. The specimens were obtained from Ghug- 

 ger Pir, Himalaya, India, through Rev. M. M. Carleton. They 

 were referred by supposition to Cyclogomphns, and an exam- 

 ination of the developing venation, which is well preserved, con- 

 firms the supposition. 



The shallow median cleft in the middle lobe of the labium, 

 seems now less unique than when first described, since I have 

 dscribed two forms with deeper division of it: Phyllogomphns 

 (Proc. U. S. Nat. Mus. vol. 37, pi. 38, fig. 2) and Gomphus dil- 

 atatus (Bull. 68, N. Y. State Mus. p. 266, fig. 14). These three 

 forms, however, have no near likeness to each other. 



Figure 4 is the labium of the nymph that was Cabot's No. 1 1, 

 which was also Hagen's No. 34 (1. c. p. 277). While labeling 

 it "Gomphoides sp.," Hagen doubtfully refers it (or, at least 

 the preceding very closely allied species No. 33) to Cyclo- 

 phylla; and an examination of the developing venation shows 

 that to that genus it undoubtedly belongs. 



There is in each wing a single cross vein in the supertriangle ; there 

 is one in the triangle, but there is none in the subtriangle. There is 

 an anal loop of two cells placed crosswise of the wing: the outer side 

 of the triangle of the hind wing is angulated above the middle of its 

 length, and all other characters are sufficiently in accord with the typi- 

 cal species of this genus. 



The labium is remarkable for the semicircular outline of the middle 

 lobe, and for the long fringe of flattened scales about its margin. The 

 end hook of the lateral lobes is sharply incurved, the inner margin is 

 smooth. 



