150 MUSCID.B. 



epistoma non attingentes ; articulus tertius linearis, secmido longior, 

 apice subtruncatus. Thorax ellipticus. Alulije angustse. Abdomen 

 thorace longius. Pedes validi, setosi. Mas. Abdomen lineare, apice 

 incrassatum. Fcem. Abdomen fusiforme. 



Body narrow, cylindrical, bristly. Head nearly round ; front broad 

 in both sexes ; face vertical ; facialia without bristles ; epistoma not pro- 

 minent. Eyes nearly round. Proboscis short. Palpi filiform or nearly 

 so. Antennae not reaching the epistoma ; third joint linear, longer 

 than the second, somewhat truncated at the tip ; fourth obsolete ; fifth 

 very minute ; sixth setaceous, more than twice the length of the third. 

 Thorax elliptical. Wings narrow ; costal vein ending on the hind 

 border near the tip ; subcostal vein ending at about one-third of the 

 length of the wing ; mediastinal vein ending before half the length ; 

 radial vein ending before five-sixths of the length ; cubital vein ending 

 at the tip ; cubital and prsebrachial veins diverging from the prsebra- 

 chial transverse vein to the straight and nearly upright discal transverse 

 vein, nearly parallel from thence to the border. Abdomen longer than 

 the thorax. Legs stout, bristly. Male. Abdomen linear, thickened 

 at the tip. Fern. Abdomen fusiform. 



a. Arista plumose with long hairs. 



b. Fore femora and fore tibite without spines. Species 1, 2. 



b b. Fore femora and fore tibise armed with spines beneath. Spe- 

 cies 3, 4. 

 a a. Arista bare, or nearly so. Species 5, 6. 



1. pubera, L. Fn. 1855 (1761); F.; Gmel. ; Fal. ; Meig.; Mcq. ; 

 Desv. ; Zett. Nigra, albo-tomentosa, palpis tibiis tai'sisqiiefulvis, tho- 

 race nigro-bivittato, alis flavo-cinereis apice fuscis ; Fcem. frontalibus 

 rufis. Long. 3-4 ; alar. 6-7 lin. 



Black. Head and thorax with white tomentum. Palpi taxouj, with 

 darker tips. Antennae not near reaching the epistoma; third joint 

 longer than the second. Thorax with two broad black stripes. Wings 

 grey, tinged with yellow in front, tips brown, a slight incision at the 

 tip of the pobrachial vein ; discal transverse vein parted by much more 

 than its length from the praebrachial transverse vein, and by much less 

 than its length from the border ; halteres, ilhlcB, and tarsi tawny. Ab- 

 domen slightly tinged with grey. Male. Front very broad ; frontalia 

 deep black. Fern. Front moderately broad ; frontalia red. Abdomen 

 compressed at the tip. 



Common. (E. I.) 



2. albipes, Fal. Scat. 9. 8 (1819); Meig.; Mcq.; Zeit. —J tipes, 

 Desv. Nigra, subtus albida, frontalibus antennisque luteis, palpis albis, 

 sciitelli vitta pedibus/iiie albidis, tarsis fusccscentibus. Long. 2-2^; 

 alar. 4 lin. 



Black, whitish beneath. Frontalia luteous ; palpi white. iVutenii;i3 



