184 INSECUTOR INSClTlit MENSTRUUS 



Eutrichophora punensis, new species. 



Length of body, I 1 mm. ; of wing, 9 mm. Two males and one 

 female, Pachacayo, about 12,000 feet, March 26 and 27, 1913, on 

 flowers of Eupatorium sp. 



Head silvery-white, cheek grooves light honey color in direct view, 

 parafrontals blackish under the silvery pollen, frontalia brown except front 

 border which is concolorous with lunula, latter fulvous ; antennae and 

 arista blackish-brown, first two antennal joints reddish in female. Occip- 

 ital bars gray, all other head hairs black. Thorax, scutellum, abdomen, 

 and legs black, first two thinly silvery pollinose, four faint heavy vittae on 

 mesoscutum ; abdomen thinly silvery on all but anal segment, but more 

 noticeable as broad front borders to intermediate segments ; anal segment 

 copper-cinereous pollinose. Wings nearly clear, fciintly tawny at base ; 

 tegulae white. 



Type, TD4 1 32 (fly, straplike uterus, black maggots). 



Epalpodes equatorialis rinnacensis, new subspecies. 



Length of body, 8 to 1 mm. ; of wing, 6.5 to 9.5 mm. Seven 

 females and ten males, San Cristobal Hill, Lima, about 1 ,000 feet, Sep- 

 tember 22 to 30, 1 9 1 2, on herbage ; and two females, Matucana, 8,000 

 feet, September 8, 1 9 1 2, on foliage. 



Differs from equatorialis T. as follows : Parafacials slightly narrower ; 

 second abdominal segment without continuous marginal row of macro- 

 chaetae. Fifth thoracic vitta hardly distinguishable. Black of third seg- 

 ment is more pronounced, extending outward posteriorly along margin ; 

 silvery-golden of anal segment is proportionately broader, diminishing the 

 darker areas, in the Matucana specimens covering nearly whole segment 

 and leaving only a pair of reddish-brown spots on hind margin. The 

 pollen of median vitta spreads narrowly along front margin of second and 

 third segments for a considerable distance in the Matucana specimens, 

 and sometimes in the others but less so. Both scales of the tegulae are 

 normally white, sometimes var)nng to watery-tawny, the front sccJe being 

 edged with delicate black hairs. 



Type, TD4 1 5 1 (fly, straplike uterus), San Cristobal Hill. 



It is to be noted that the San Cristobal Hill specimens run much smaller 

 and are less conspicuously and extensively pollinose than the Matucana 

 specimens, thus demonstrating the efficiency of circumscribed environment 

 for producing noticeable variations in this region. 



