62 THOMAS SAY FOUNDATION 



No. 19. Harpagopyga diversipes Coq. 



Coquillett, Pro. U. S. N. M., xxii, 255, female (Sar~ 

 copJiaga). 



Male. Front .25 of head width, over one-third 

 occupied by the brown, sharply-defined median stripe ; 

 parafrontals and parafacials silvery pollinose, the lat- 

 ter rather wide; antennae brown, the basal joints red- 

 dish, third reaching fonr-fifths of the way to vibrissee, 

 arista long-plumose a little over half way ; palpi yel 

 low, ordinary; proboscis blackish, short, fleshy; bucca 

 one-fourth the eyeheight; outer vertical well devel- 

 oped ; two regular rows of black hairs on back of head, 

 with only a few pale hairs there. 



Thorax gray pollinose with three brown stripes, 

 the central one reaching to tip of scutellum; also a 

 brown stripe on the notopleural suture and a short 

 broad one on lower half of mesopleura. 



Abdomen with changeable tessellation, on which 

 a median brown stripe is constant on second and third 

 segments, also a changeable lateral one each side; 

 fourth segment mostly red ; first and second segments 

 with only lateral bristles, third with a marginal row 

 of 8, fourth with one of 10. 



Plypopygium red, gray pollinose; first segment 

 large, rather humped at base in profile, with a row 

 of bristles near hind margin; second segment also 

 rather large and humped basally, with some erect 

 hairs ; forceps rather small, straight and evenly taper- 

 ing, on the back pollinose and with recumbent hair, 

 not hooked at apex; accessory plate roundish with 

 slight notch at apex, the anterior lobe with a few long 

 hairs; hind clasper yellow, slender, strongly curved, 

 with a long hair on front side; fore clasper shorter, 

 flat and curved at tip; penis with very short basal 

 segment, the distal one bulky, globose, mostly of soft 

 consistency; the central soft mass shows on the side 

 in an oval shape and projects forward from the hard 

 part; on the back it is concave to an apical rounded 

 angle (in profile), then turns strongly forward Avith 



