LIST OF DIPTERA. 301 



Dioctria lateralis, Meig. Klass. i. 258, 8, ex. p. Dipt. ii. 249, 16. 

 Macq. Dipt. Nord. AsiL 18, 10. Hist. Nat. Dipt. i. 291, 11. 

 Loew, Prog. 1840, 14, 7. Isis, 1840, 536, 7. Linn. Ent. ii. 

 435, 14. Asilus haemorrhoidalis, Meig Klass. i. 270. Dioc- 

 tria haemorrhoidalis, Meig. Dipt. ii. 250, 18. Macq. Dipt. 

 Nord. AsiL 19, 13. Hist. Nat. Dipt. i. 292, 13. Zeller, Isis, 

 1840, 41, 6. 



a. France. 



Dioctria cyanea, Fabr. Syst. Anil. 150, 3. Wied. Auss. Zweif. i. 



366, 5. Asilus cyaneus, Fabr. Mant. Ins. ii. 361, 35. Ent. 



Syst. iv. 387, 52. 

 a. South Africa. Presented by Dr. A. Smith. 



Dioctria Albius, n. s. Nigra, thorace aureo bivittato, abdomine ni- 

 gro-cupreo, antennis pedibusque nigris, alis cinereis. 



Body black, slender: head a little broader than the chest, co- 

 vered with hoary down, which blends with the golden down on the 

 front : tubercle of the eyelets and hind part of the head beset with 

 long black hairs ; clypeus armed with long black bristles : eyes 

 bronze ; fore part hardly flat, its facets blending as to size with 

 those of the other part : lip black : feelers black ; first and second 

 joints slightly club-shaped, of equal length, clothed with black 

 hairs ; third joint spindle-shaped, not so long as the first and the 

 second ; fourth joint conical, very small : chest adorned with golden 

 down, which forms two bright irregular stripes on each side, and 

 covers in a less degree the whole back ; the latter is also clothed 

 with a few long tawny hairs : breast deep black, adorned with 

 patches of white down : abdomen dark cupreous, shining, narrower 

 than the chest, and rather more than twice its length : legs black, 

 clothed with yellow down and long tawny hairs ; hips adorned with 

 white down ; claws black ; foot-cushions pale tawny : wings gray ; 

 wing-ribs and veins piceous, the latter black towards the tips ; 

 poisers tawny. Length of the body 3^ lines ; of the wings 6J lines. 



a. New York. Presented by E. Doubleday, Esq. 



Dasvpogon, Fabricius. 



European Species. 



A. Fore shanks with tip-spines. Meig. Dipt. ii. 258, pi. 10,/. 10, a. 

 Loeiv, Linn. Ent. ii. 439. 



Group I. Saropogon, Loew y Linn. Ent. ii. 439. 



