02 MYCETOPHILIDJK. 



a. Wings grey. Species 1. 

 a 0. Wings nearly limpid. 



b. Veins blackish. Species 2, 3. 



b b. Veins pale testaceous. Species 4. 

 a a a. Wings white-hyaline. Species 5. 



1. atra, Meig. Kl. Zw. i. 40. 4 (1803); StaBg. ; Zett. Nigra, alis 

 cinereis nigro-pubescentibus, halteribus abdomine pedibusque piceis. 

 Long. 1-2 ; alar. 3-4 lin. 



Black. Wings grey, with black pubescence ; veins black ; subcostal 

 vein between the transverse veinlet and its tip rather more than twice 

 the length of the subcostal vein. Halteres, abdomen, and legs piceous. 



Not rare. (E. S. I.) 



2. flavipes, Meig. Zw. i. 102. 1 (1818). pallipes? Zett. Nigra, 

 alis sublimpidis, venis nigricantibus, halteribus pedibusque testaceis. 

 Long, f-1 ; alar. 2-2^- lin. 



Black. Wings nearly limpid ; veins blackish ; subcostal vein between 

 the transverse veinlet and its tip about thrice the length of the transverse 

 veinlet. Halteres and legs testaceous. 



Generally distributed. (E. S. I.) 



3. bicolor, Wied. MSS. ; Meig. Zw. i. 102. 2 (1818); Mcq. ; 

 Sta3g. ; Zett. Nigra, alis sublimpidis, venis nigricantibus, halteribus ab- 

 dominis suturis pedibusque pallide testaceis, abdomine piceo. Long, i-f ; 

 alar. 1-1^ lin. 



Black. Wings nearly limpid ; veins blackish ; subcostal vein between 

 the transverse veiulet and its tip about four times the length of the 

 transverse veinlet. Halteres, sutures of the abdomen and legs, pale tes- 

 taceous. Abdomen piceous. 



Generally distributed. (E. S. I.) 



4. Aceris, Meig. Zw. i. 102. 4 (1818) ; Mcq.; Sta3g.; Zelt. Nigra, 

 alis limpidis, venis, halteribus pedibusque pallide testaceis. Long, i-i ; 

 alar. |--| lin. 



Black. Wings limpid ; veins, halteres, and legs pale testaceous. 

 Not rare. (E.) 



5. globifera, Hal. MSS. "Atra, opaca, alis albis, halteribus et 

 pedibus fusco-flavidis, antennis 11-articulatis ; Mas, antennarum arti- 

 culo secundo maximo subgloboso, flagello apice attenuate. Long. <^|-, 



?; alar. 1| lin. 



" Deep black, not glossy. Antenna3 scarcely as long as the thorax, 

 eleven-jointed, fuscous ; first two joints black. In the male the second 

 joint is very large, oblate-globose ; the interior joints of the flagellum 

 subglobose, beset with a few long hairs, the exterior joints much more 

 slender, so that the antenna might be described as moniliform-seta- 

 ceous. In the female the joints of the flagellum are subovate-globose, 

 but faintly pubescent, of nearly equal thickness (monib' form-linear). 



