140 INSECUTOR INSCITLt MENSTRUUS 



as in Epalpus. Claws of female strong ; those of male much stronger, 

 nearly twice as long. 



Reproductive habit, leaf-larviposition of colored maggots. 



Type, Saundersiops confluens, new species. 



Saundersiops confluens, new species. 



Length of body to end of spines, II to 12 mm. ; of wing, 9.5 to II 

 mm. Four males, Ollachea, San Gaban Canyon, about 9,500 feet, 

 February 2, 1 9 1 0, on flowers of euphorbiaceous shrub with habitus of 

 Buddleia. 



Differs from Epalpus discalis in color as follows : Pile of parafacials 

 black in aU cases, the black pile extending on anterior part of cheeks ; 

 but face and cheeks silvery to tawny-silvery. Sides of abdomen above 

 usually faintly brownish-yellow or reddish, the irregular darker border of 

 abdomen nearly obsolete except on tip of anal segment, a wide dark 

 median vitta more or less apparent though feiintly so. The second abdom- 

 inal segment has a complete marginal row of macrochaetae, except in one 

 male which shows a wide interruption in lacking two bristles on each 

 side of the heavy median margined pair ; this male has little or no reddish 

 tinge above on sides of abdomen. The venter is black with a little red- 

 dish on sides anteriorly in the transitional male just noted, but wholly red- 

 dish in the others save for a median broad black vitta. 



Type, one of the typical males. 



Saundersiops cruciata, new species. 



Length of body, II to 12 mm. ; of wing, 1 to 1 I mm. Four males 

 and four females, Matucana, about 8,000 feet, as follows : One female, 

 September 8, 1912; three males, January 29 and 30, 1913; three 

 females, August 1 , 1913; and one male, August 16, 1913. On flowers 

 of Baccharis sp. emd on foliage. 



Facial plate silvery- white with faint golden tinge at times ; cheeks and 

 parafacials silvery with shading of light golden, latter most noticeable on 

 cheek grooves and front margin of parafacials ; parafrontals dark olive 

 with thin covering of silver-brassy pollen ; frontalia and first two antennzJ 

 joints reddish-fulvous, the former sometimes lighter ; third antennal joint 

 and arista blackish. Occipitail and cheek pile grayish-brassy ; hairs of 

 front and parafacials black, reaching cheeks. Mesoscutum and pleurae 

 concolorous with parafrontals, thinly pollinose ; four thoracic vittae, the 

 inner pair linear before and wide behind suture, abbreviated a little be- 



