142 INSECUTOR INSCITIit MENSTRUUS 



of Cyclanthera sp. ; one female, Matucana, 8,000 feet, January 30, 

 1913, on flowers of Baccharis sp. 



Whole head pale golden pollinose, facial plate more silvery but with 

 fjunt sheen of gold. First two antenneJ joints, lunula, frontalia, all of legs, 

 scutellum, and abdomen reddish-fulvous. Scutellum, frontalia, and lunula 

 usually a shade lighter than the rest. Parafrontals, occiput, mesoscutum, 

 £md pleurae dull olive, thinly gray pollinose, thoracic vittae narrow and 

 not conspicuously defined. Occipital and cheek pile light brassy, hairs of 

 parafacials and front black. Third antennal joint and arista brown to 

 blackish. Tawoiy-gray pollen of abdomen in vA6e front border to third 

 segment, extending dilutely over disk to hind margin ; covering front hzJf 

 of anal segment ; forming vitta on segments 2 to 4 ; showing not at all on 

 sides of second segment. First segment dark brown in middle. The 

 abdominal median vitta shows a dark background through the pollen. 

 Wings rather dilute fuscous, slightly but aJways distinctly tawny-yellowish 

 on basocost£il portion. Both sceJes of tegulae tawny, nearly shade of 

 wing bases. 



Type, TD4 1 1 5 (fly, straplike uterus), Matucana. 



This form represents a division of Saundersiops of subgeneric rank. 



Saundersiops simillima subspecies, punensis new subspecies. 



Length of body, 9.5 to 1 4 mm. ; of wong, 9.5 to 1 4 nmn. Nineteen 

 females and one male, Pachacayo, about 12,000 feet, March 26 and 

 27, 1 9 1 3, on flowers of Eupatorium sp. and Viguiera-like composite, 

 being especially numerous on latter. 



Differs from the typical form in the pollinose front border of third seg- 

 ment being definitely limited behind and not extending backward to hind 

 margin of segment (or only so in abnormaJ specimens), except on median 

 vitta. Abdominal vitta rather narrower and more delicate, better defined. 

 Seven specimens of this form (including TD4 1 3 1 and the mzJe) possess 

 a practically complete transverse discal row of macrochaetae to third ab- 

 domind segment, while the other thirteen show the gaps characteristic of 

 this subgenus. Many show the marginal row of second segment practi- 

 cally complete. 



Type, TD4130 (fly, straplike uterus, black maggots). Cotypes are 

 TD4 1 3 1 (black maggots) and TD4 1 33. 



Rhachoepalpus andinus, new species. 



Length of body to end of abdominal spines, 16 to 20 mm. ; of wing. 



