19G THE CANADIAN ENTOMOLOGIST. 



pubescence, becoming white on cheeks beneaih and lower part uf pleura; 

 a very few black hairs on dorsum of thorax. Head broad ; vertex shiny, 

 somewhat roughened, sparsely punctured; clypeus rather sparsely 

 punctured. Clypeus (except the narrow anterior margin and a sutural 

 mark on each side above), a supraclypeal band, lateral face-marks, labrum 

 (except the usual pair of spots), a large patch on mandibles, and the scape 

 in front, all lemon-yellow. First joint of flagellum longer than second, 

 and a little longer than third, but not so long as 2 + 3. Antennje 

 reaching a little beyond tegulse. Tegulge reddish-testaceous. Wings 

 perfectly hyaline, nervures piceous. Second submarginal cell narrowed 

 fully one-half above. Legs black, claws ferruginous at base. First four 

 femora with long white hairs behind, hind femora with shorter black 

 hairs. All the tibife with appressed pale mouse-gray pubescence on outer 

 side, the four hindmost with black hairs on inner surface. Hind tibite 

 somewhat dilated, and bearing a sharp tooth near the end, close to the 

 origin of the spurs. Pubescence of basal joint of tarsi as described for 

 tibiae; basal joint of hind tarsi dilated, flattened, with a short tooth at the 

 side. Intermediate tarsi simple and ordinary. Basal segment of abdo- 

 men with long pale ochraceous hairs ; the remaining segments with thin, 

 appressed, grayish-white pile on their hindmost halves, not forming bands. 

 Hind margins of segments narrowly hyaline. Extreme apex with black 

 hairs. The eyes in life are of a beautiful dark green. 



9 . Similiar, but the pubescence more cinereous, and on occiput 

 and the whole dorsum of thorax strongly mixed with black. Face and 

 antennae wholly black, mandibles with a pale line. First joint of 

 flagellum about or almost as long as 24-34-4. Middle of 5 th abdominal 

 segment with black hairs, sides with white hairs. Basal joint of hind 

 tarsi with a conspicuous black brush. Wings perfectly clear as in the (J . 



Habitat. — Common at Mesilla and Las Cruces, New Mexico. I 

 first took this species on Solanian eheagnifoliutn^ at Las Cruces, July 13, 

 1893 [Ckll, 313]. The specimen, a $ , was identified by Mr. Fox as 

 urbana of Cresson. Later, I found both sexes at Las Cruces, visiting the 

 flowers o{ Ipomcea. At Mesilla, in the fourth week of June, the species 

 was observed in great numbers, nesting in adobe walls. Up to the 

 present day (June 23) I had no doubt that the insect was really urbana, 

 but on more particularly examining a c^ , it was at once evident that it 

 was a distinct species, and further study indicated that it was new. As 

 in the fly-genus Dolichopus, this section of Podalirius presents us with a 



