NEW MUSCOID FUES FROM THE ANDEAN MONTANYA 143 



1 4.5 to 1 8 mm. Two females, eastern base of Huasceuray Ridge, about 

 7,000 feet, September 21, 1 9 1 1 , on foliage. 



The colorational description of Jurinia olivaurea will apply almost 

 exactly to this species, the only differences from the whole specific descrip- 

 tion being as follows : Tibiae reddish, at least on middle. Pile of pafa- 

 facials, parafrontals, and cheeks same, but that of occiput more brassy. 

 Frontaha brown. Palpi represented by a pair of minute black hairy 

 papillae, slightly longer than wide. Thoracic vittae wider behind suture, 

 but less distinct ; hind angles of mesoscutum more nearly concolorous with 

 disk of same. Three postsutureJ and no postacrostichal bristles, but in 

 the smaller female there is an extra very weak postsutural between the 

 two front ones, and in the larger female there is a weak postacrostichal 

 on the right side. Scutellum with only one marginal pair of macrochae- 

 tae, being at lateral hind corners, all the other macrochaetae being spine- 

 like and arranged in about four transverse rows. The olive-golden of 

 abdominal tergum extends over practically all of anal segment, and the 

 black of venter shows not at all on edges of tergum, but the heavy mar- 

 ginal bunches of black spinelike macrochaetae give scime effect of black 

 margin. The second and third abdominal segments have each a thickly 

 set marginal rcw of spinelike macrochaetae, the third segment being with- 

 out discal, and the second segment having a discal bunch of about twelve 

 pairs in about three irregular transverse rows. Anal segment covered on 

 apical half or less with macrochaetae in two or three transverse rows of 

 spinelike ones in front of the terminal brush of bristles, the bunch not being 

 geminate nor with separated macrochaetae in front. The olive -golden of 

 tergum extends more or less faintly on anterior hcilf, more or less, of last 

 three segments of venter. Wings and tegulae sjune, the hind scale of 

 tegulae quite deeply golden on margin in the larger female. The pro- 

 boscis is short and stout, heavy ; when fully extended being at most equal 

 to head-height. Anal abdominal segment very broad posteriorly, with 

 pronounced apical emargination, but more tapered than in Quadratosoma, 

 the length of hind border being equal to about two-thirds that of front 

 border. A weak but rather long pair of closely approximated proclinate 

 ©cellar bristles ; third antennal joint about one and one-half to one and 

 two-thirds times as long as the elongated second, quite evenly rounded 

 apically. 



Type, the larger female. 



