62 MYCETOPHILID.U. 



a. Wings grey. Species 1. 

 a a. 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); Staeg. ; Zett. Nigra, alis 

 cinereis nigro-pubescentibus, halteribus abdomine pedibmque 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 piceoits. 



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. 2-21 lin. 



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

 the transverse veinlet and its tip about thrice tJte 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. ; 

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

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

 alar. 1-H 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. ; Streg.; Zett, Nigra, 

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

 alar. J | lin. 



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

 Not rare. (E.) 



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

 pcdibus fusco-flavidis, antennia 11-articulatis ; Mas, antcnnarum arti- 

 culo secundo maximo stibgloboso, flagcllo apice attenuato. Long. <$ , 



?; alar, li lin. 



" Deep black, not glossy. Antenna; 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 flagellura 

 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 flagcllum arc subovate-globose, 

 but faintly pubescent, of nearly equal thickness (raoniliform-lincar). 



