REPORT ON MOSQUITOES. 295 



92, 3 and 4) are normal, the latter with a moderate apical tuft and 

 stout basal joint. 



The thorax is very much broader than long, with angulated 

 sides, each angle set with acute infuscated tubercles from which 

 issue moderate sized hair tufts, and there are two very small 

 tufts near the anterior margin. The abdominal segments are 

 subequal, each bearing lateral hair tufts of from two to five hairs 

 in each, the larger number on the anterior segments. The lateral 

 patches of scales on the eig"hth segment are large, having from 

 twenty-five to thirty in each patch. The individual scale (fig. 92, 

 8) is elongated, with a rather small apical spine and smaller ones 

 fringing the sides. The anal siphon is two and one-half times, or 

 slightly over, as long as broad, yellowish brown in color, thickest 

 near the base and tapering a little apically. There are from six- 

 teen to twenty spines in each of the rows, the single spine (fig. 

 92,. 9) with one or two teeth near the base. The ninth segment 

 is almost square, nearly ringed by the chitinized saddle and with 

 the double dorsal tuft and ventral brush normal and moderate in 

 size, the latter with several small tufts below the barred area. 

 The tracheal gills are slender, about two and one-half times the 

 length of the ninth segment and taper to a point. 



Habits of the Early Stages. 



A mixture of full grown larvae and pupse was taken from a 

 woodland pool in the Great Piece Meadows May loth, 1904, by 

 Mr. Grossbeck. .Vll the larvae were put in alcohol and the pupae 

 in breeding jars to develop. During the next three days speci- 

 mens of C. canadensis, C. sylvestris and C. pretans appeared in 

 the jar, and no others. Examination of the larv^ae showed those of 

 C. canadensis, C. sylvestris and Aedes fusciis which were known 

 to us, and one other which we had not previously recognized and 

 which was assumed to be the early stage of pretans, as that was 

 the only one we had not bred. The connection between the larva 

 above described and the adult has not been positively made, there- 

 fore ; but I have no doubt of the correctness of the association. 



We failed absolutely to obtain this larva again, later in the 

 season ; but the territory where the}^ had been found in May was 

 unusually dry until after midsummer and none of the pools re- 

 filled so as to mature a brood. 



CUIvEX INCONSPICUUS, GROSSBECK. 



The Inconspicuous Mosquito. 



A small mosquito, brown in color with the dorsal surface of 

 the thorax vei"}' dark brown, covered with pale yellowish scales at 



