Oct.., igi2 Bulletin of the Brooklyn Entomological Society 15 



prsescutum appears trivittate; scutum yellowish -gray, clearest 

 medially, a brown spot in the middle of each lobe; scutellum and 

 postnotum brownish-gray pruinose, a narrow brown median 

 stripe on the latter. Pleurae brownish-gray with two narrow dark 

 brown stripes traversing the pleural sclerites, the most dorsal be- 

 ginning over the fore coxa, the ventral one behind the fore coxa. 

 Halteres light yellow, knob a little browner. Legs: coxae yellowish- 

 brown; trochanters and femora light yellow, the latter with 

 an indistinct brown subapical ring; tibiae and tarsi dull yellow, 

 the last tarsal segments brown. Wings hyaline or nearly so; 

 veins yellowish; a brown spot at origin of Rs, at tip of 5c, in 

 cell Sc at about two-thirds its length; brown seam to cross-vein r, 

 fork of Rs, cross-veins and deflections of veins; a series of larger 

 pale brown spots in cell M along vein Cu; all cells thickly 

 sprinkled with very pale brown dots (see fig. a). Venation: Sc 

 rather short, ending before the middle of Rs; basal deflection of 

 Cu 1 sometimes far before fork of M, sometimes closer to fork as 

 in the paratype figured. 



Abdomen: Tergites dull yellow, narrowly brown on the sides 

 and on the caudal margin, indistinctly darker medially; sternites 

 dull yellow, brownish on lateral edges. 



Female: Quite as in male, in the allotype the brown marks 

 on the caudal part of the prsescutum not evident. 



Holotype, male, Totonicipan, Guatemala, 1902 (Dr. G. Eisen). 

 Allotype, female, with the type. 



Paratype, female, Guatemala, July, 1902 (Dr. G. Eisen). 

 Types in coll. U. S. Nat. Mus. (No. 15, 137). 

 Rhipidia domestica Osten-Sacken. 



Head: Rostrum and palpi brown. Antennae dark brownish- 

 black; segments 12-13 almost white. Front, vertex and occiput 

 light gray. 



Thorax: Pronotum light brown with a dark brown median 

 stripe. Mesonotum, prasscutum golden-sericeous on sides and 

 behind; a broad, clear median stripe with darker lines as follows: 

 a conspicuous dark brown line on either side of the very narrow 

 ground line, occupying the caudal two-fifths of the sclerite; two 

 small dark brown spots in front of the anterior ends of these marks 

 and two still smaller dots on the humeri ; a narrow median brown 

 line on the front of the sclerite, broadest in front; a broad lateral 



