16 ENTOMOLOGICAL SOCIETY 



segment half plated, oblique, the plate with long spines at the tip. 

 Dorsal tuft, subdorsal one, and ventral brush present. Anal gills four, 

 moderate, about as long as the segment. 



Grabhamia scholasticus Theob. (PL II, fig. 3). 



Antennae long with tuft at middle, the apical spines with two removed 

 some distance from tip. Air tube inflated, conic, the pecten of four 

 teeth very near the base. Comb of six scales, separate, with rounded 

 bases, the central apical spine longer than the subapical one. Anal seg 

 ment ringed by the pale plate, the brush preceded by hair tufts to the 

 base. (The anal gills were lost in the specimen and we have not 

 shown them in the figure.) 



Grabhamia infine D. & K. (PL II, fig. 4). 



Head rounded, normal, wider behind, surface sparsely granular; an 

 tennae long, a hair tuft at the middle ; labial plate long with radial 

 hairs. Body hairs short, diminishing posteriorly, skin smooth. Comb 

 teeth six, large, subconsolidated, trifid, finely spined. Air tube about 

 three times as long as wide, strongly inflated; pecten of five teeth on 

 basal third, a small tuft before tip. Anal segment short, ringed by the 

 plate, with tufts to the base; brush normal. Anal gills four, slightly 

 tapered, pointed. 



Grabhamia pygmaeus Theob. (PL II, fig. 5). 



Head rounded, brown ; antennae short, not exceeding the mouth brush. 

 Thoracic and abdominal hairs of first two segments moderate, the rest 

 slight. Air tube twice as long as wide, short, roundedly inflated ; pecten 

 of two teeth near base. Comb of six scales, rounded, with trifid tips, 

 separate. Anal segment weakly chitinized, apparently ringed by the 

 plate; tuft small; brush moderately developed, with tufts along the 

 ventral line to base. Anal gills four, very short, blunt. 



Aedes knabi Coq. (PL V, fig. 20). 



Head rounded, dark; labial plate with long projecting lateral teeth. 

 Snort abdominal hairs stellate. Comb 'of many scales in a patch, the 

 scale broad with feathered tip. Air tube twice as long as wide, the 

 pecten closely set, running to the middle, followed by a single hair. 

 Anal segment with a large dorsal plate ; brush and tuft normal. Anal 

 gills four, short, blunt. 



Aedes insolita Coq. (PL V, fig. 19). 



Head rounded, antennae small, smooth, a single hair at middle; labial 

 plate sharply triangular with central tooth and small side teeth. Body 

 hairs long, diminishing posteriorly, the short abdominal ones long- 

 stellate, but not conspicuous. Comb a large dense patch of spines, with 

 feathered tips. Air tube and plate blackish ; tube two and a half times 



