212 MUSCID^. 



sessile, depressed. Legs slender. MaU. Abdomen almost linear, gene- 

 rally bristly at the tij) ; first segment long. Fore femora and foi'e tibia 

 dentate and spinose beneath. Fcem. Abdomen elongate-oval, segments 

 of nearly equal size. 



1. putris, L. S. N. ii. 793. 89 (1767) ; Scop. ; F. ; Gmel. ; Eal. ; 

 Meig. ; Mcq. ; Hal. ; Zeii.—fimeti var., Ij.—Jimeti, Schr. Atra vel 

 nigro-senea, nitida, alis subhyalinis aut subfuscis ; Mas, hypopygio bre- 

 viiis setoso, metatarso antico brevi ino'assato. Long. 1|^-1|-; alar. 2|— 



3 lin. 



Black, shining. Wings almost limpid ; costa black. Halteres yel- 

 low, brown at the base ; tarsi covered beneath with brown down. Male. 

 Tufts of curled hairs on each side of the hypopygitim not half so long as 

 the abdomen. 



Generally distributed. (E. S. I.) 



2. pilosa, Desv. E. M. 14>C^. 1 {\^ZQ).—superba,lM. Nigra 

 aut nigro-a3nea, nitida, alis sublimpidis ; Mas, hypopygio longius setoso, 

 metatarso antico longissimo. Long. 1^; alar. 2 lin. 



Black, shining. Wings almost limpid ; costa black. Halteres yel- 

 low. Tarsi covered beneath with brown down. Male. Tuft of hairs 

 on each side of the hypopygium as long as the abdomen. Fore femora 

 twisted and armed beloio with four spinous teeth in a cluster ; fore tibia 

 deeply notched, with a strong tooth on the inner side ; above this a spine, 

 a small tooth Clearer the base ; before the tip on the outer side is a long 

 spine ; fore metatarsus very long and straight, the next joint is the shortest. 

 Var. Body aeneous-black. 



Not common. (E. I.) 



3. minor, Hal. E. M. i. 170 (1833). Nigra, nitida, alis sublim- 

 pidis aut subfuscis ; Mas, hypopygio nudo, tarsis simpUcibus. Long. 

 f-1 ; alar. li-l| lin. 



Black, shining. Wings almost hyaline or slightly brown. Halteres 

 yellow. Abdomen aeneous-black. Male. Hypopygium bare. Fore 

 femora with a feio bristles below ; fore tibice loith a bifid spine about the 

 middle. 



Generally distributed. (E. S. I.) 



4. Leachi, Meig. Zw. v. 291. 14 (1826). Nigra, nitida, alis sub- 

 limpidis, maris abdomine apice setoso, pedibus basi rufis. Long. 2 ; alar. 



4 lin. 



Black, shining. Wings almost hyaline. Halteres yellow. Legs 

 red at the base. Male. Uypopygium bristly ; fore femora and fore tibia 

 dentate beneath. 



Rare. (E.) 



