of the Genus Pelecorhynchus. 403 



Spots of wings deep blackish brown and 

 larger, pubescence on anterior part of 

 sides of thorax and hairs on base of 

 cheeks reddish nigripennis, sp. n. 



4. Wings pale russet. Bod}' russet above, 



black below, with a median dorsal black 



stripe on dorsum fidvus, sp. n. 



Wings hyaline, sometimes tinged yellowish. 5. 



5. Abdomen black, shining. Thorax brown- 



ish with blackish hairs at sides. Scutel- 



lum brown. Legs black fusconiyer, Walker. 



Abdomen reddish brown, shining. Thorax 



reddish brown, with red hairs at sides. 



Scutellum brown, with red hairs on 



posterior border. Legs reddish claripennis, sp. n. 



Abdomen, thorax, and scutellum clothed 



with orange-red pubescence. Legs red- 

 dish yellow aurantutcus, Ricardo. 



Abdomen, thorax, and scutellum black, 



with whitish thoracic stripes and spots 



on abdomen danvini, Ricardo. 



Pelecorliynclius maculipennis, ? , Macquart. 



Pelecorlmnchus mactdipennis, Macq., Dipt. Exot. Suppl. iv. p. 332, pi. ii. 



fig. 6 (1850) ; Ricardo, Ann. & Mag. Nat. Hist. (7) v. p. 102 (1900). 

 SUvius personatus, Walker, List Dipt. i. p. 192 (1848), et v. Suppl. i. 



p. 267 \Dasybasis] ; Ricardo, Ann. & Mag. Nat. Hist. (7) v. p. 102 



(1900)." 

 Pelecorhynchus ornatus, Schiner, Novara Reise, Dipt. p. 98 (1868) ; 



Williston, Kansas Univ. Quart, iii. p. 192 (1895). 



Black. Abdomen with red bands. Antennas red. Legs 

 testaceous. Wings with brown spots. Length 6 lines $ $ . 

 Palpi testaceous with yellowish hairs <$ , white $. Beard 

 yellowish c? , whitish ? . Face on the convex part brownish 

 with black hairs; sides with white tomentum. Forehead 

 brown, with lateral stripes of brown tomentum and a little 

 white tomentum in front, in female. Antennas: the first two 

 joints and the last four divisions of the third joint brown. 

 Thorax black <$ , brown $ , with two dorsal black narrow 

 stiipes and two slate-coloured stripes the same width, $ ; sides 

 with yellowish hairs <£, with whitish hairs $ ; a tuft of 

 bright red hairs in front of root of wings. Abdomen, <$ : 

 second, third, and fourth segments with testaceous shining 

 band, interrupted in the middle ; posterior border of these 

 segments bordered with short bright red hairs ; that of the 

 female differs in these testaceous bands having white tomen- 

 tum. Legs testaceous, the last joints of tarsi brown ; the 

 hairs of the posterior legs black on outside border, brownish 

 on inside border. Wings a little yellowish ; the brown spots 

 at base of cells. 



