ART. 17. NORTH AMERICAN PHOROCERA ALDRICH AND WEBBER. 58 



the beak. Le^s black ; outer side of front femur cinereous, the front 

 tibia longer than the front tarsus to the base of the claws (in the 

 proportion of 47 to 41) ; all the pulvilli very long, the front ones as 

 long as the last three tarsal joints; middle tibia with two bristles 

 on the outer front side, but the upper one quite small, only half the 

 lower; middle coxae and the space just anterior with only a few 

 bristles. Wing hyaline; fourth vein without perceptible fold at 

 the bend ; third vein with six to eight bristles. 



Length 12 mm. 



Described from one male, Washington, D. C, August 15, 1923 

 (Aldrich), taken on honey dew on the tulip tree. 



Type.— Mole, Cat. No. 26781, U.S.N.M. 



PHOROCERA COCCIPHILA, new species. 



Male.— Front 0.28 of the head width (average of five: 0.26, 0.2 <. 

 0.28, 0.28, 0.30), pale yellow, the parafacials with silvery pollen; 

 frontal bristles about ten, the two uppermost strong and reclinate, 

 the remainder smaller, except one striking pair at the level of the 

 antennal insertion; the lowest frontal bristles a little below the 

 arista. Antennse black, third joint moderately broad, about three 

 and one-half times the second ; arista slender to the base and rather 

 long, its penultimate joint distinct, from one to two times as long 

 as thick ; bucca about one-sixth-.- the eye height ; palpi yellow on 

 apical half or more, the base blackish; proboscis short; back of 

 head with dense, pale beard, more yellowish above. Thorax yellow- 

 ish, cinereous, with rather narrow, dark stripes when viewed fi'om 

 behind, the median one very indistinct; posterior dorsocentrals 4; 

 anterior dorsocentrals 3; sternopleurals 2 (in all the six specimens). 

 Scutellum with three pairs of marginals, a pair of apicals which are 

 about three-fourths as long as the adjacent marginals, and a pair 

 of smaller discals. Abdomen with yellowish, cinereous pollen be- 

 coming whiter below, the first segment with a pair of rather strong 

 median marginals, wholly black in color except on the ventral side 

 where there is a long, triangular spot of pollen ; second and third 

 segments with rather narrow, shining black border, the second with 

 a single pair of large, spine-like marginals, the third with a row 

 still larger; fourth segment with the basal yellowish pollen broadly 

 but vaguely divided in the middle by the shining black color which 

 covers the whole apex, the pollen of the third segment is entirely 

 unmarked by a median, darker stripe; that of the second segment 

 has a faint trace on the anterior half ; the fifth sternite stands out 

 quite prominently, the two side pieces erect and parallel, each with 

 a protuberance projecting toward the middle line where they meet. 

 Genitalia small, brown, the inner forceps having a roundish, rather 

 flat base, covered with erect, crinkly hair bent considerably forward, 



