MACROGOMPHUS. 



shorter than the 10th segment. Anal appendices longer than 10th 

 segment, p^-ramidal, sharp, of nearly equal length. Lateral superior 

 appendices nearly as long as the others. 



7. Gomplius species. 

 Plate 11., fig. 2, b, c, d. 



Nympha, full grown. Length, 22 mm. ; breadth, 7 mm. 



Locality : Himalaya, Ghugger Pir, Rev. M. M. Carleton. Coll. Mus. 

 Comp. Zool. 



Body flat, lanceolate. Head cordate. Eyes lai'ge, very prominent. 

 Ocelli indistinct. Vertex flat, two small impressions at fore part. Part 

 behind the eyes short, rounded laterally ; hind angles blunt ; two flat 

 impressions on each side of median line. AntennjB, two basal joints glob- 

 ular, 2d smallest, 3d long, dilated, bent up, 4th very small, black, cylin- 

 drical. Mask extending to fore legs, length greater than breadth, nar- 

 rower behind, deeply channelled at fore-border, sides bent up ; middle 

 3d of fore-border produced in elHptical lobe, deeply cleft in the middle, 

 Avith comb of bristles thickened at base. Palpi strong, with sharp, bent 

 hooks ; some molar incisions ; movable hooks long, bent, sharji. Pro- 

 thorax oval, narrower than head, rounded, flat. Wing-cases reaching 

 4th segment. Legs formed for burrowing. Hind legs more widely 

 separated at base. Fore and middle legs stout, about equal in size. 

 Femora and tibiae arcuated, tibise are without the sharp lateral spine at 

 end ; tarsi knife - shaped, 2 -jointed ; claws shai'p. Hind legs tarsi 

 3-jointed, straight. Abdomen flat, dorsum slightly rounded, tapering 

 graduall3^ Side border sharp. Segments 5 to 9, with lateral spines ; 

 no dorsal hooks. Segments of nearly equal length, 10th small, short, 

 cylindrical. Lateral spines of 9th are ^ length of 10th. Anal appen- 

 dices a little longer than 10th ; equal length, pyramidal, sharp. Supe- 

 rior appendix with two tubercles near the tip. Lateral short and 

 sharp. 



8. Maerogomphus spiniceps. 



Nat. Hist. Soc, Phil., 1862, p. 889. 



Plate II., fig. 1, a, b, c. 



Nympha. 41 mm. long ; 8 mm. broad. 



Locality: Taken in transformation by Mr. F. G. Sanborn, July 4, 1867, 

 at Lawrence, Mass. 



