Il8 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I25 



Abdomen : Tergite of segment i dark brown, with yellow hairs ; 

 pleurites dark brown, with fringe of very long pale-yellow hairs that 

 reach segment 5. Segment 2 dark brown, with bluish-white pruinosity 

 on anterior half and on pleural regions, with yellow hairs on pleural 

 regions. Segments 3-6 dark brown, white pruinosity along posterior 

 margin and in pleural regions, clothed with rather long pale-yellow to 

 bronze hairs ; segments 7 and 8 dark brown, completely gray-pruinose, 

 with short black hairs. Sternites dark brown, with central longitudinal 

 black band, clothed with long, pale-yellow hairs. 



Genitalia: Sidepiece (pi. 22, fig. 19) almost conical in shape, 

 much longer than wide, the apical margin greatly reduced ; with dorsal 

 concavity near middle of apical margin; dorsal opening occupying 

 about half of dorsal surface of sidepiece. Clasper (pi. 22, fig. 19) 

 somewhat snout-shaped, the base widely open, with bulge on outer 

 margin ; apex truncate, with a single, short terminal spine. Body of 

 adminiculum (pi. 22, fig. 20) like the stem of an inverted Y, its length 

 about three times its width, the apex pointed, very hairy; the basal 

 processes appear as the arms of the inverted Y, very long, divergent, 

 broad, expanded and blunt at their ends. Adminicular arms (pi. 22, 

 fig. 21) with one long tooth at the apex and, at times, with a second 

 shorter one ; lateral plate wide, somewhat rectangular in shape, without 

 wrinkles. 



Female (pi. 29, figs. 136-138, and pi. 35, fig. 268). — 2.9 mm. long. 



Head: Dichoptic. Eyes black; base of fronto-ocular triangle 1.5 

 times the height. Antenna 500 [m long, 11 -segmented, slightly tapering, 

 the apical segment pointed; segment 3 = 14-2 = 44-5 = 11 ; scape and 

 pedicel light brown, the flagellum black. Palpi black. Frons, clypeus, 

 and occipital region black, gray-pruinose, the frons with short, pale- 

 yellow scalelike hairs, the clypeus with longer, erect, yellow hairs, and 

 the occipital region with rather long, recumbent, scalelike hairs. 

 Cornuae of buccopharyngeal apparatus long, narrow, sharply pointed, 

 well sclerotized ; the median space hyaline, smooth. 



Thorax : Mesonotum black, with bloom of gray pruinosity ; long, 

 narrow, appressed, pale- to bronze-yellow scalelike hairs in broad 

 band around the periphery, longer in the prescutellar region ; shorter 

 hairs of same type sparsely distributed on the midregion of scutum ; 

 some of the hairs near the anterior margin appear almost silvery. 

 Humeral angles black, gray-pruinose, with long yellow hairs. Scutel- 

 lum dark reddish brown, with long, yellow, erect hairs and several 

 recumbent, yellow, scalelike hairs. Postnotum dark brown, with white 

 pruinosity in the form of a W, and with 2 patches of recumbent, 

 golden, scalelike hairs, one on either side of midline, on the posterior 



