80 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.63. 



a strongly chitinized process. One male from Mexico has the anal 

 segment black, the front wide in the male 0.362 of the head width 

 and the sides of the second abdominal segment reddish; in still an- 

 other sj^ecimen from California, a male, the anal segment is black, 

 face and front silvery, the latter 0.300 of the head width and the 

 sides and a good part of the dorsum of the second and third abdom- 

 inal segments reddish. Identification from Van der Wiilp's de- 

 scription is not at all satisfactory but until more material is available, 

 the specijnens had better remain under this name. 

 Type. — In British Museum. 



PHOROCERA PARVITERES, new species. 



Front 0.27-0.30 in male (in three), 0.32 in female (one) of the 

 head width; front rather short and horizontal in male but not 

 strongly protuberant at the antennae. Parafrontals and parafacials 

 light golden pollinose, the former without unusually dense erect 

 hair; the sparse frontal rows reaching about to arista, with two 

 recurved above; parafacial at narrowest half as wide as third an- 

 tennal joint. Antennae black, third joint long, six times the second 

 in the male, five times in the female, arista thickened on basal third; 

 palpi yellow. Thorax gray pollinose with the usual black stripes, 

 four dorsocentrals, generally four sternopleurals, but the lower two 

 small and sometimes only one of them developed and that but 

 slightly; scutellum with three marginal, a pair of erect decussate 

 apicals, and a pair discal. Abdomen gray, second and third seg- 

 ments rather uniformly colored but with a median black line, no dis- 

 cals even on the fourth segment, which has contrasting yellow pollen, 

 but still showing the median line. Abdominal hairs erect on median 

 line on second segment, elsewhere depressed. In certain lights the 

 second and third segments show a broad darker area each side. Gen- 

 italia of male small. 



Legs black, mid tibiae with one bristle on outer front side, hind 

 tibiae with a poorly developed row. Pulvilli in male as long as last 

 tarsal joint, half as long in female. Wings hyaline, third vein 

 Avith 2-3 hairs at base, curve of fourth vein nearly a right angle 

 but rounded, concave toward tip, the apical cell disproportionately 

 wide at the bend. The third costal segment (beyond the auxiliary) 

 equals the fifth. 



Length 5.5 to 6.5 mm. 



Described from five males and one female. College Station, Texas, 

 September 21, to October 9, 1920 (H. J. Keinhard). 



7V;?6.— Male, Cat. No. 25723, U.S.N.M.- i 



The species is much like favwauda Van der Wulp, as identified 

 by Coquillett in a Mexican specimen in the United States National 

 Museum; but the latter has a wider front (0.33 in the male), which 

 has dense erect hairs. It also has a well-ciliated hind tibia and other 

 small differences. 



