206 A. L. MELANDER. 



Two males; Milwaukee, Wis., VI, 26, 1895. New Bedford, 

 Mass., V, 24, 1896. 



This may prove to be the male of varipes Loew, though the pice- 

 ous abdomen and lack of the dark color of the legs and unbordered 

 veins, etc., are sufficient for specific differences in the present state 

 of our knowledge. 



Stilpon Houghii sp. nov. (Figs. 2, 3). 

 Male and Female. Length 2 mm. — Black, uot shining. Head, thorax and 

 abdomen cinereous dusted. Face and front cinereous, face broad in both sexes, 

 front narrowed a little above antennse. Antennse short, third joint not minute 

 though small, seta shorter than height of head, apical joint and seta infuscated. 

 Proboscis short, thick, bent back, sordid yellow, dusky at apex ; palpi sordid 

 yellow. Thorax very bristly. Abdomen shining through the cinereous coating ; 

 hypopygiura enormously enlarged, shining above. Legs yellowish, tarsi but 

 little dusky towards tip ; femora a little thickened, hind femora with a few 

 macrochfetae on posterior surface; tarsi slender, hind metatarsi not thickened. 

 Halteres yellowish, knob infuscated. Wings hyaline, with an opalescent tinge, 

 nerves pale yellow ; basal cells long, subequal. 



Two males, one female ; New Bedford (June), and Horse Neck 

 Beach (August), Massachusetts. 



I take pleasure in dedicating this curious insect to Dr. Garry de 

 N. Hough, who has many times shown his generous spirit to all 

 interested in Dipterology. 



DRAFETIS Meigen. 

 Very small, shining, black or brownish, rather thick-set species. 

 Antenna; two-jointed, shorter than the head ; end joint short and 

 rounded, with a simple terminal bristle. Proboscis short, vertical ; 

 palpi broadened, bristly at tip, shorter than the proboscis. Eyes 

 narrowly separated in both sexes. Legs with fine pubescence; coxse 

 not lengthened ; hind tibire generally ending on the posterior side in 

 a more or less well developed brush-like process, forming a partial 

 sheath around the base of the metatarsus. Third longitudinal vein 

 not forked, no discal nor anal cell, first basal cell shorter than the 

 second. 



Legs mostly black 2. 



Fore femora more or less yellow 5. 



2. Halteres black ; hind tibiae with no bristles ■ 3. 



Halteres white ; hind tibige lighter, with several bristles on outer side 4. 



3. Third (fourth) abdominal segment large; fore tibise lighter; autennse larger; 



veins stronger nigra Meigen. 



Abdominal segments normal ; legs uniformly dark ; antennae small ; veins 

 weak; hypopygium biparted diTidua sp. nov. 



