Sept., 1913-] Melander : Synopsis of Diptera. 239 



bristles are greatly reduced, but three distantly spaced pairs of insignificant 

 hairs remaining. The lunule is highly arched, and notched at its summit. 

 The face is correspondingly narrowed, and is provided with a median seam, 

 which is lacking in indecora. The crowding of the face raises the oral bristles, 

 which ascend fully half way to the antennae. The palpi are bristly. In inde- 

 cora the palpi are almost dev'oid of bristles and the oral vibrissas do not extend 

 half way to the antennae. Furthermore, the abdomen of the present species is 

 silky, with a distinct red sheen. 



One specimen. Hayti. 



MILICHIELLA Giglio-Tos. 



Mesonotum gray pruinose, with five vittae, of which the median one extends 

 almost across the scutellum ; abdomen brownish, somewhat shining; 

 one dorsocentral ; palpi white. 1.5 mm. (Porto Rico.) (Ophihal- 

 momyia.) cinerea Coquillett. 



Shining black species; thorax devoid of pollen; usually two dorsocentrals. . .2. 



2. Palpi red, only the tip blackened ; lunule, root of antennae, knees and tarsi 



brownish ; abdomen of male and female black. 3-4.5 mm. (Cal.*) 



(Wien. ent. Ztg., XXX, 39, 1911.) nitida Hendel. 



Palpi, lunule, legs, etc., black 3- 



3. Upper side of abdomen of male entirely silvery. 2.5 mm. (N. Y., Ont.,* 



N. J., Fla., Ga.,* Kans.) (Milichia: Lobioptera.) arcuata Loew. 



Abdomen of male and female mostly or wholly black 4. 



4. Second segment of male abdomen with a lateral silvery spot. 3.25 mm. 



(N. J.*) bisignata n. sp. 



Abdomen wholly without silvery markings 5- 



5. Wings milky, veins white, first posterior cell almost closed in the margin. 



2.5-3 mm. (Afr. ; E. Ind. ; W. Ind. ;* Hawaii; S. Am.; N. J., D. C, 

 ■ Fla., Ga.,* Tex.,* N. Mex., Kans.) (Ophthalinomyia.) 



lacteipennis Loew. 



Wings hyaline, first vein heavy and brown, a dark spot at the tip of the 



costal cell, first posterior cell narrowed but not nearly closed at its 



apex. 3 mm. (Cal.) (i Rept. Laguna Marine Lab., 162, fig. 94, 



igi2.) nigrella Cole. 



Milichiella bisignata new species. 



Male. — Length 3.25 mm. Vertex a little wider than one third the head; 

 third antennal joint with gray spongy pubescence, slightly reddish in ground 

 color on the sides at the base ; lunule black ; about six vibrissae ; palpi black. 

 Mesonotum glistening black ; scutellum shining black ; knob of halteres yellow. 

 The four basal segments of the abdomen overlaid with brown dust except as 

 follows: the extreme sides of the first segment, the broad sides of the second, 

 the apical angles of the third and fourth. The extreme base of the fifth seg- 



