AQUATIC INSECTS IN NEW YORK STATE 281 



the eyes and ending at the middle of the thorax on its ventral 

 aide. Palpi ending in a J-shaped hook. 



Respiratory horns cylindric, becoming laterally flattened at 

 -tip, erect but bent anteriorly in their distal third. Wings and 

 legs closely covering the ventral surface; tips of the wing cases 

 reaching the base of the fourth abdominal segment; legs much 

 curved beneath the wing cases; tarsi laid straight along the 

 ventral side of the abdomen, those of the fore legs reaching 

 the constriction of the middle of the fonrth, those of the middle 

 and hind legs, the apical circlet of spines on the fourth abdom- 

 inal segment. Thorax unarmed; a low carina between the 

 Tespiratory horns, ending posteriorly in a series of transverse 

 •corrugations, on either side of which are spots and lines of 

 darker color. 



Abdominal segments transversely divided by a constriction, 

 l)oth before and behind which, dorsally and ventrally, is a broad 

 pale area bordered by darker brown, forming at the sides a 

 Tjand which includes the row of spiracles at the anterior border 

 ■of segments 1-7. In the pale band on the lateral margin there 

 arises a stout spine in the basal half and a larger one in the 

 -apical. half of segments 2-7; here are also numerous brown 

 -dashes, merging into the larger, phalerate markings already 

 •described. 



On the dorsal side in the apical half of each of segments 1-7 

 "there is a transverse row of about a dozen sharp, minute thorns, 

 Tery minute on 2, but becoming larger posteriorly; on the ven- 

 tral side of same is a similar row of stouter thorns, becoming 

 much stouter and fewer and nearer the hind margin posteriorly, 

 -while before them, near the middle constriction, stand an iso- 

 lated pair of similar size. On segment 8 there are three pairs 

 •of stout spines on the dorsum, the intermediate pair being the 

 largest, and there are three lesser pairs on the venter. On the 

 •end of the abdomen, and perhaps belonging to a ninth segment, 

 there are two other pairs of spines, a larger yellowish, brown 

 tipped, straight pair, and a smaller, terminal, upcurved pair. 



Epiphragma fascipennis Say 



Plates 8, 9 



Ijlmnobia fascipennis Say, Acad. Nat Sci. PMla. Proc. 3:19, 



11:823- 

 1828 Limnobia fascipennis Wiedemann, Aussereur. zweiflflg. 



Insecten, 1:31 

 1859 Bplptiragma pavonina Osten Sacken, Acad. Nat. Sci. Pliila. 



Proc. p.239 

 1869 Epiphragma fascipennis Osten Sacken, Mongr. N. Am. 



Dipt. 4:194 



