254 H. A. HAGEN. 



ones; maxillae above with four strong spines, below with three shorter ones; pal- 

 pus as long as the superior spines, but stouter; wing cases covering partly 4th 

 segment ; abdomen not very broad, all segments of nearly equal length ; the last 

 four tapering; lateral spines on segments 2 to 9 ; dorsal hooks only indicated on 

 segments 2 to 9 by somewhat thickened round lobes, a little larger on segments 2 

 and 3; appendages a little longer than the last segment, sharp, the inferior ones 

 a little longer: abdomen above on segments 2 to 9 with four rows of blackish spots, 

 one on each side nearer to the margin, the others near the middle forming with 

 the dorsal hooks a kind of "fleur de lis;" legs short, strong, adapted for burrow- 

 ing; hind legs a little longer, reaching segment 5. 



The wing cases of the smallest nympha covering only half of segment 1 ; lateral 

 spines only on segments 5 to 9; no dorsal hooks; last joint of antennte longer 

 and stouter; the vertum with the gills is left in the nympha skin. Indications 

 of the genital parts are not visible; middle field between the two ventral sutures 

 as broad as the lateral ones. 



The nympha of C. lineatns is similar to those of Prog, ohscurus, but 

 directly to be recognized by the equally distant fore- and middle legs ; 

 in Prog, ohscurus the middle legs are less distant from each other, than 

 the fore legs. 



2. Goiiiphus Bpec. 



Two nymplue in alcohol, one young, the other not full grown ; from the 

 Sutledge River above Billespur, Himalaya, by Kev. M. M. Carleton, 

 1872. Length 29-21 mm. 



Body stout, very hairy; head cordate, short, nearly straight behind, somewhat 

 less in the younger one; hind angles oblique, rather sharp; antennae short, third 

 joint very little longer than twice the length of the two basal ones and scarcely 

 broader, cylindrical, bent a little, truncate ; fourth joint as long as the tip of third, 

 broad, short, ovoid ; mask as long as broad, concave in middle, sides oblique, base 

 one-third shorter than front margin; middle third produced in a triangular lobe, 

 three times broader than long, tip strongly rounded, with a comb of flat scales; 

 palpus short, triangular, rounded above, tip nearly sharp, a little bent, very little 

 serrate; movable hook long, bent, sharp; wing cases covering half of third seg- 

 ment; abdomen three times longer than broad, segments of equal length, 10th 

 one-third of the foregoing; dorsum flatly rounded, no dorsal hooks, apical margin 

 of 9th with a small triangular hook in middle ; lateral spines on segment 7th to 

 9th strong, sharp, the last nearly as long as segment lOtlx, lateral margin of those 

 segments with a series of small teeth; scars a^ usual; genitals not marked; ap- 

 pendages twice as long as 10th segment, triangular, sharp, the laterals a little 

 shorter; legs long, anterior not much thicker than posterior, which reach half 

 of 7th segment; third joint of posterior tarsi scarcely longer than second. 



The species and group of these nymphae are unknown ; the principal 

 characters are : — the shorter head, straight behind, witli marked angles ; 

 the shorter mask with triangular lobe, without visible pavement teeth ; 

 the short palpus, triangular, the tip sharp, a little bent ; the flat, long 

 abdomen with strong lateral spines on 7 to 9, and no dorsal hooks ; the 

 long legs. The larger nympha shows that it has still to undergo a change 



