NO. 2099. THE DIPTEROUS GENUS SYUPHOROMYIA—ALDRICH. 139 



produced near the apex in front in the form of a rounded knob; pile of middle coxae 

 short, not forming pencils"). Wings grayish-hyaline, sHghtly yellowish along the 

 costa, stigma dark-brown. Length 7 mm. New Hampshire (Mrs. A. T. Slosson) and 

 Colorado. Two males. 



To this I can add the following: The New Hampshire specimen 

 has been removed, and the type label is on the Colorado specimen. 

 The only males from New Hampshire that I found in the collection 

 were a set of hirta, with yellow halteres; as these have Mrs. Slosson's 

 name on them, I incline to the opinion that Coquillett afterward 

 discovered that his two specimens were of different species, and 

 removed the New Hampshire specimen to liirta. The expression 

 "sometimes largely whitish," referring to the pile of the sides of the 

 first abdominal segment, evidently applied to the specimen which 

 was removed. The table of species indicates the relationship to 

 Mncaidi; the differences arc not great, but with so great difference 

 of locality and a single specimen of pullata I could not venture to 

 assert the identity of the species. I have seen no specimens which 

 seem to belong with Coquillett's Colorado type. 



SYMPHOROMYIA SACKENI, new species. 



Male. — Black, the following parts yellow: tips of femora, aU the 

 tibiae, tarsi to the middle, venter except near tip, three pairs of co- 

 alescent spots on the sides of the abdomen, and the halteres except 

 a part of the knob; third antennal joint concave below the arista. 

 Eyes contiguous for a space about equal to the length of the ocellar 

 triangle, frontal triangle almost silvery pollinose; antennae of mod- 

 erate length for the sex, first joint hardly twice the length of the two 

 following, densely cinereous pollinose, with long but not dense black 

 hair, about of equal length above and below; second joint concol- 

 orous, with short hair; third joint more brown than black, concave 

 on apex with an angle above and one below apically, the arista arising 

 from the former; the lower part of this joint is larger than the upper 

 and the vertical diameter is a third more than that of the first joint; 

 face with a row of long black hau-s close to the eye, extending nearly 

 up to the antenna; palpi short and slender, black with mostly whitish 

 hairs; labella very small and proboscis shorter than the palpi; occi- 

 put with black hairs, a few long ones above, those below a little mixed 

 with yellow. Thorax above cinereous pollinose, but with some in- 

 distinct longitudinal markings of browner pollen, the hairs of the 

 disk mostly pale yellow, those around the edges coarser and black; 

 pleura concolorous, with mixed hairs, those of metaplem^a long and 

 pale yellow; halteres yellow, but the knob largely blackish; scu- 

 tellum rounded, with mixed hairs. Abdomen long and slender, the 

 hair wholly yellow except at tip; color rather opaque black, except 

 the venter on the basal and middle parts, and fom- pairs of spots on 

 the sides, which are yellow; hypopygium prominent, black. Front 

 coxae with black and yeUow hairs, those of middle coxae black, not 



