THE CANADIAN P:NT0M0L0GIST. 105 



and shanks black at tlie tip ; tarsi black ; abdomen clubbed, yellow, with 

 a longitudinal dorsal brown stripe ; anal club black. 



^ . Wings not spotted with white ; legs distinctly testaceous, black 

 at the joints ; last joints of the tarsi black ; abdomen lanceolate, yellow, 

 Avith a dorsal, ventral, and on each side a lateral, brown stripe. 



FAMILY BIBIONID.«. 



[311.] 435. AspiTES (Arthria) analis Az'r^V. — Plate vi., fig. 8. — 

 Length of body, excluding wings, 2 lines ; including wings, 3 lines. 

 Several taken in Lat. 65". 



Body black, naked. Head very small ; trunk with a dorsal area marked 

 out by a ridge ; on each side is a reddish-yellow line drawn from the 

 collar to the base of the wing ; but in some specimens this is very indis- 

 tinct ; poisers white ; wings hyaline, iridescent, much longer than the 

 body ; costal area divided into three areolets, with testaceous nervures, 

 terminating in a black stigma ; there are four spurious nervures, the first 

 abbreviated, and the anal one bent towards the margin ; the legs are 

 reddish-yellow except the apex of the tarsi, which is black ; the inter- 

 mediate pair are smaller and shorter than the others ; anterior thighs are 

 much incrassated, and the tibiae terminate in a spine ; the posterior thighs 

 are elongated ; abdomen flat above : anus yellow, as is sometimes the 

 margin of the ventral segments. 



family empid^. 



436. Empis luctuosa jS'/ri^j'.— Length of body, including wings, 3 

 lines. Taken with the preceding. 



Body entirely black. Proboscis very little longer than the head ; 

 wings a little embrowned, with a large black stigma, iridescent, nervures 

 black. 



[312.] 437. Empis geniculata Kirby. — Length of body 3 lines. 

 Taken with the preceding. 



Very similar to the preceding, but not so black ; wings slightly em- 

 browned, beautifully iridescent ; legs, where the shank is united to the 

 thigh, white ; proboscis nearly as long as the thorax. 



