l82 MAINE AGRICULTURAL EXPERIMENT STATION. I9IO. 



spot over the hind coxse. Each tergite brown with both an- 

 terior and posterior margins yehow. Wing shghtly cinereous 

 tinged. Halteres pale yellowish. Legs yellow, tarsi dusky. 

 Reported by Say from the Northwest Territory. 



18. A4ycomya meridionalis n. n. 

 1896. diluta, Williston, (preoc.) Trans. Ent. Soc. London. 263. 



(Sciophila). 

 Male. Length 3 mm. Reddish yellow ; abdomen brown. 

 Antennae about as long as the head and thorax together, some- 

 what compressed ; light brown, the basal joints yellow. Front 

 and face brown or brownish-yellow, palpi brown. Thorax, coxas 

 and femora reddish or luteous yellow ; mesonotum brownish- 

 yellow, with black hairs and bristles. Abdomen brown or yel- 

 lowish-brown, with black hairs. Tibiae brown ; tarsi blackish ; 

 front metatarsi a trifle shorter than their tibise; hind tarsi scarce- 

 ly longer than the tibiae. Wings tinged with brownish ; the 

 costal vein terminates at the tip of R4+5 ; cell R^ very short ; 

 furcation of the cubitus very nearly opposite the origin of the 

 radial sector. St. Vincent Isl. 



19. Mycomya Uavohirta Coquillett. 

 1901. Uavohirta, Coquillett. Proc. U. S. Nat. Mus. XXIIL 596. 



{Sciophila). 

 Male. Length 5 mm. Head black, the face and mouth parts 

 yellow, first two joints of antenna yellow, the remainder black, 

 compressed, the third joint only slightly longer than broad; 

 thorax and scutellum yellow, polished, the bristles and numer- 

 ous, rather long hairs also yellow ; abdomen polished, yellow, 

 the bases of segments 2 to 5, the whole of the sixth, and apex 

 of abdomen, black ; legs yellow, the tarsi brownish ; halteres 

 yellow ; wings hyaline, cell R^ about twice as long as broad, 

 cubitus forking far before base of the radial sector ; petiole of 

 media 2-7 as long as M„ ; front tibiae slightly longer than their 

 tarsi ; no coxal spur. N. H. 



20. Mycomya niendax n. sp. 

 Male. Length 6 mm. Head black, face, palpi, and base of 

 antennae yellow, flagellum fuscous, intermediate joints over half 

 again as long as wide gradually decreasing in length toward the 

 apex. Thorax yellow, dorsum with 3 subconfluent black stripes, 

 of which the laterals are anteriorly abbreviated ; metanotum and 



