348 CHARLES T. BRUE8. 



Described from 23 specimens: 7 from New Bedford, Mass. 

 (Hough); 9 from Ithaca, N. Y. (Comstock) ; 2 from Chester Co., 

 Pa. (Johnson); 3 from Philadelphia, Pa. (Johnson); 1 from Dela- 

 ware Co., Pa. (Johnson); 1 from Wood's Hole, Mass. (Brues). 



Phora cinibicis Aldrich. (Fig. 15.) 

 Aldrich, Canadian Entomologist, xxiv, 143 il892). 



Head black, front broad, below with an obtuse prolongation in the middle; 

 no ocellar prominence ; at the extreme lower edge of the front, in the middle, 

 are two bristles directed upward and strongly outward. Antennae brownish 

 black, palpi of the same color, longer than antennae. Thorax black, pleurae a 

 little shining ; a group of two or three bristles just below the. prothoracic spiracle 

 and a pair at the base of the fore coxae. One pair of dorsocentral and four mar- 

 ginal scutellar bristles. Abdomen wholly satiny black like thoracic dorsum, 

 except the first segment which is whitish above in the middle; the last segment 

 longer than the preceding. Halteres black, the pedicel a little yellowish at base. 

 Fore and hind tibiae with one, middle tibiae with two bristles on the outer side a 

 little below the knee; the hind tibiae have also a scattering row of three smaller 

 ones running to the tip ; the tips of the middle and hind tibiae with long spurs. 

 Legs wholly satiny brownish black, except that the front ones are from the coxae 

 gradually lighter, ending in brownish-yellow tarsi and that the middle tarsi and 

 sometimes the middle tibiae are also brownish yellow. Wings subhyaline ; the 

 third vein forked, fourth vein nearly straight, ending a little before the apex of 

 the wing. 



Length 3 mm., of wing 2 mm. 



Three females, Brookings, South Dakota, reared from cocoons ot 

 Cimbex americana Leach. Emerged May 24, 26, 27. (Condensed 

 and elaborated from the original description.) 



There is also a single additional specimen from New Bedford, 

 Mass. (Hough, No. 2841 ] , and one from Toronto, Can. 



This species closely resembles P. nitidifrons, but can always be 

 readily recognized by its black halteres and by the fact that the 

 front is foveately punctured, while in nitidifrons it is finely punc- 

 tured on the sides and smooth medially. 



Phora incisuralis Loew. (Fig. 16.) 



Loew, Centuries, vii, 98 (1866). 



Aldrich, Canadian Entomologist, xxiv. 



Coquillett, ibid., xxvii. 

 Front dark brown, antennae red, palpi yellowish red, broad at tip, and with 

 five black setae ; proboscis rather long, yellow. Thorax yellowish brown above 

 and pure yellow on the sides, middle coxae distinctly blackened, scutellum and 

 metanotum brown, halteres yellow. Abdomen black above, first segment aud 

 posterior margins of the following ones yellow; venter yellow except on last 

 segment. Legs yellow, including front aud hind coxae; tips of the broad hind 

 femora slightly brownish. Fore tibiae on the upper side with a series of four or 



