136 INSECUTOR INSCITLt MENSTRUUS 



front aspect. Parafacial pile black. Legs wholly blackish, only the 

 front tarsi showing a yellowish shade, the femora and tibiae quite black 

 as is the venter of abdomen and the tip of anal segment. Hind tegulae 

 subfuscous with pale borders. Three postsutural and only one postacro- 

 sticheJ bristles. Scutellum with the weak apical pair of bristles present. 

 The discal bristles of intermediate abdominal segments consist of only two 

 pairs to each segment. Venter is reddish on sides anteriorly. 



Epalpus lineatuSy new species. 



Length of body, 1 to 13 mm. ; of wing, 1 to 12 mm. Matucana, 

 about 8,000 feet, one female and two males, September 8, 1912; 

 eighteen females and three males, January 29 to 30, 1913, on foliage. 



Head silvery-tawny, the clypeus more silvery than rest ; parafrontals 

 dark, showing through the pollen ; frontalia and first two antennal joints 

 reddish-yellow, third antennal joint and arista dark brown. Pile of occi- 

 put, cheeks, and parafacials brassy; that of parafrontals black. Thorax 

 of same dull olive as parafrontals, thinly covered with silvery pollen, with 

 four very narrow vittae of usual pattern (outer ones widely interrupted at 

 suture, inner abbreviated just behind suture). Scutellum reddish-yellow, 

 about same shade as frontalia and first two antennal joints. Abdomen 

 yellov^ash-red, being usually slightly deeper color than scutellum, with 

 broad median vitta of blackish showing beneath pollen ; the silvery-tawny 

 pollen showing as narrow front border to second segment, wider front 

 border to third segment, and covering more than front half of anal seg- 

 ment. Venter practically same color as tergum, but no median vitta. 

 Legs concolorous with abdomen, the tarsi light yellow. Claws and pul- 

 villi pale yellov^nsh, claws tipped with black. Wings evenly lightly infus- 

 cate, tegulae pearl-whitish to tawny. Pollen of abdomen has a distinctly 

 more yellowish shade than that of head. The hind border of third ab- 

 domincJ segment and tip of anal segment are usually darker than rest of 

 abdomen. Second aristal joint not strongly elongate, about twice as long 

 as broad. Spines of abdomen and scutellum weak rather than heavy. 



Type, female, January 30, TD4 1 I 3 (fly, straplike uterus, and black 

 maggots). 



Epalpus niveus, new species. 



Length of body, 1 2 to 14 mm., not including spines ; of wing, 1 3 to 

 1 4 mm. Nine mjJes and four females, as follows : Verrugas Canyon, 

 about 5,400 feet, one male, April 16, on foliage; June 25, two males i 



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