AMERICAN DIPTERA. 163 



nients taken togrether. Legs yellowish red, outside of all the tihise white polli- 

 nose, hut hiud pair sometimes very faintly so. Outside of cox-.e golden whitish, 

 posterior cox?e silvery. Claws yellowish, with black tips, pul villi yellow. Wings 

 clouded with fusions or blackish on anterior (outer) half as follows: costj^l cells 

 clear, auxiliary vein and cross-vein at each end of it yellowish; all the basal 

 cells clear; discal cell clear, except black cloud along whole posterior margin, this 

 cloud widest in middle, its proximal half filling almost exactly posterior (inner) 

 half of proximal half of cell. First posterior cell with a spurious vein, abruptly 

 clear behind (inside) of this vein, otherwise wholly clouded, except that the 

 clouding fades into a nearly clear rather wide border along last section of fourth 

 vein, this clear area ending distally in a point. Second and third posterior cells, 

 anal angle and alula wholly clear. Veins along basal ^including anal) cells yel- 

 lowish. Marginal and submarginal cells wholly blackish. Halteres bright yel- 

 low. Sexual processes of female on underside of abdomen, with space between 

 them, black, especially the smaller anal one, the latter red on base, the large ante- 

 rior one reddish on base and tip. Length of males 14.5 to 15.5 mm. ; of female 

 13.5 mm. Length of wing of male 10 to 11 mm.; of female 9.5 mm. 



This species approaclies botli excisus and rufus in the large ven- 

 tral process of female, as well as in the prevailing reddish and yel- 

 low colors and picture of the wings. 



Rhaphioinidas xanlhos Towns. 



Three specimens, September 10th ; one male and one female, 

 mesa east of Las Cruces in the Larrea belt, and one female dead on 

 sidewalk in town of Las Cruces. This is the first record of the 

 occurrence of the family Apioceridse in New Mexico. 



The female from the mesa measures 24 mm. in length not includ- 

 ing antennae or probo.scis. It has the second, third and fourth 

 abdominal segments clouded laterally, and on median line with 

 brown, the fourth more extensively so laterally than the others. 

 The fifth, i«ixth and seventh segments are brownish in both females. 

 The other female (the one found dead on sidewalk) measures only 

 19.5 mm. in length (excluding antennse, etc.), and has abdominal 

 segments 2, 3 and 4 wholly yellowish as in the male specimen. The 

 male measures 20.5 mm. in length not following curvature of abdo- 

 men, and has abdominal segments 2 to anal wholly yellowish, ex- 

 cept that 2 has a median anterior spot of dark brown. All three 

 of the specimens have first abdominal segment blackish, this color 

 nearly concealed by rather dense white pile, the pile of the other 

 segments being yellowish. The eyes are vivid bright green. The 

 last three abdominal segments in the females are alniost bare of 

 pile compared with the other segments, and appear glabrous. 



It will be seen from the above notes that the feniale from the 



TRANS. AM. ENT. SOC, XXVII. FEBRUARY, 1901 



