51 



mm. Los Angeles, Cal. A siugle male specimen bred by Albert 

 Koebele from a larva of Sphenophorus robiiatK.s. Type ZSTo. 3529, 

 U. S. National Museum robnsta n. sp. 



Genus PHY'50 D^. 



Phyio Desvoidy, Essiii siir les Myodaires, p. 218; 1830. 



Savia Eondani, Dipterologiic Italic;*^ Prodromus, Vol. IV, p. 140; 1861. 



This synonymy is given by Brauer and Bergeustamm.' Our species 

 is black, including the palpi, cheeks largely reddish; front in male 

 destitute of orbital bristles, in the female bearing two pairs; three 

 postsutural and three sternopleural macroclui'ta' ; length, (3 to 8 mm. D.-^^^ 

 Northern Illinois and Missouri. ( List of Diptoroun Inoccta, Pa r t lY, — 

 p 7'^"; ^'^^^' Tnohin^t Phf/to setosa Coquillett, Journ. jST. Y. Ent. Soc, 

 Yol. Ill, p. 99; Sept., 1895. j. . J.^T'.^.^ .^ . . f:.^ .» iiEstdes-Walk. 



Genus MAXJROMYIA, new genus. 



The characters of this genus may be gleaned from the following 

 description of the type species: Black, the palpi yellow; front iu the 

 male one and two-thirds times, in the female slightly over twice, as 

 wide as eitlier eye, ocellar bristles jn-ojecting obliquely forward, two 

 pairs of orbital bristles in the female, none in the male, frontal bristles 

 descending to base of third antennal joint, sides of face at narrowest 

 l)Ouit each one-third as wide as the median depression, t liickly covered 

 with black bristles , c heeks in the male slightly narrower, in the female 

 broader, than the eve height , vibrissa' widely separated, inserted on a 

 line with the front edge of the oral margin, facial ridges bristly on the 

 lowest fourth or third, facial depression carinate in the middle, auteun;^ 

 reaching the oral margin in the male, but only reaching to lowest 

 fourth of face in the female, third joint iu the male six, in the female 

 three, times as long as the second, arista thickened on the basal half, 

 the penultimate joint slightly longer than broad; palpi clavate, short, 

 less than half as long as the proboscis beyond the basal articulation, 

 the latter slightly over one half as long as height of head, eyes bare, 

 head iu profile nearly quatlrangnlar, as long at the vibriss.e as at base 

 of antenna^, the face slightly coni.-ave; thorax gray pollinose, marked 

 with three black vitta*, three postsutural and two sternopleural macro- 

 clueta', scutellum bearing three long marginal pairs; abdomen shining, 

 last three segments whitish pollinose at the bases, bearing discal and 

 marginal macrocha'ta> ; wings hyaline, tinged with smoky along the 

 veins, third vein bristly two thn^ds of distance from base to snmll cross- 

 vein, hind crossvein slightly curved, nearly perpendicular, situated 

 midway between the small and the bend, the latter nearly rectangular 

 and bearing a short appendage, ajjical ce ll ^•]ns;f^fl oiwi ppfinLif«^ fi.A 

 petiole almost as long as the hind crossvein; calypteres whitish; hind 



' Zwoif. Kuiu. Mil... Wiui, VJ, p. fl(J7; 1800. 



