ART. 17. NORTH AMERICAN PHOROCERA — ALDRICH AND WEBBER. G5 



half is much deeper in profile ; it is deeply grooved behind, the groine 

 filled with dense yellow hairs which extend out on the hind or upper 

 side of the beak ; the sides of the basal portion liave long hairs ex- 

 tending backward and upward. This organ in profile has some re- 

 semblance to the head of the cuckoo (inverted), which suggested the 

 name. The outer forceps developed into shining flat plates, as usual 

 in this group, but larger and more conspicuous, with hairs to the 

 apex and on the front edge. Penis larger than in most of the species ; 

 fifth sternite deeply cleft, its sides almost parallel, the lobes with 

 numerous hairs along the edge and outer side. Legs black, the 

 middle tibia witli two large bristles on the outer front side and with 

 an uncommonly distinct and sharp-edged ridge down the extensor 

 side; hind tibia with sparse and uneven bristles on the outer side. 

 Claws and pulvilli all greatly elongated. Wing subhyaline, bend of 

 fourth vein a little oblique, with vei-y slight fold; third vein with 

 about five or six bristles at base. 



Length 13 mm. 



Described from three males. Falls Church, Virginia, August ;30 

 (N. Banks, Coll.) ; Green County, New York, September 10; and 

 Monticello, Indiana, Julj^ 24, 1885, reared from Siblne stlmulca 

 Clemens by John Smith. 



ry/?e.— Male, Cat. No. 25712, U.S.N.M., from Falls Church, Vir- 

 ginia. 



PHOROCERA SUBNITENS, new species. 



Male. — Front 0.26 of head with; the parafacials black and sub- 

 shining as far as the second large reclinate frontal bristle, with 

 silvery or whitish pollen from there to the mouth; the frontal bristles 

 just meet the smallish bristles of the facial ridges; antennae black, 

 the third joint slender, three times the second ; arista enlarged on the 

 basal third; bucca one-fifth the eye-height; palpi yellow, somewhat 

 infuscated at the base; proboscis small. Dorsum of thorax almost 

 entirely shining black in most lights, still from behind there is some 

 pollen visible dividing the black portion into stripes; four dorso- 

 centrals; three sternopleurals; the middle coxae have some uncom- 

 monly long bristles curved backward, a few of them rather wavy 

 at the tips; the sternopleurae just before these coxae bear some long 

 hairs which are not very stout. Abdomen mostly shining or subshin- 

 ing, black, the silvery pollen of segments 1, 2, and 3 divided by shin- 

 ing black stripes down the middle and even to the sides is of less 

 extent than usual; discal bristles absent; the hairs of the second 

 segment very distinctly erect and quite long, especially upon and ad- 

 jacent to the black median stripe on the third segment : all the liairs 

 of the third segment are very distinctly depressed; first and second 

 segments each with a single pair of median marginal bristles: third 



