138 MAINE AGRICULTURAL EXPERIMENT STATION. I9IO. 



angle acute, setose ; superior forceps much reduced, claw-like 

 and hidden under the dorsal plate; inferior forceps lobular, 

 apex fleshy with a score of long setae ranged along the side, 

 three long seise near the base of this part, the convex part pro- 

 vided with about 20 small palmate spines, the ventral aspect 

 setose (fig. 115). Coxae yellow, trochanters tipped with black, 

 legs yellow, tarsi slightly darker ; fore tibiae with 3 or 4 very 

 small setae on flexor surface ; middle tibiae with 3 or 4 on flexor 

 surface, and 4 or 5 both inwardly and outwardly on extensor 

 surface; hind tibia with 3 or 4 on inner lateral surface, 4 on 

 inner extensor surface, about 12 on outer extensor surface in 

 2 rows, the longest about as long as the diameter of the tibia; 

 empodium bushy ; claws each with a single tooth ; fore metatar- 

 sus and tibia subequal, the second fore tarsal joint half as long. 

 Wings yellowish hyaline, veins yellowish ; distance from the sub- 

 costal crossvein to the apex of the subcosta is about 0.6 as far 

 as from the humeral to subcostal crossvein; the latter stands 

 on the basal third of the small cell which is slightly longer than 

 broad; the petiole of the media is about as long as the R-M 

 crossvein ; the cubitus forks slightly distad of the end of the 

 subcosta; anal vein long, incomplete, delicate. Halteres yellow. 

 Ithaca, New York, August. 



A defective male specimen from Price Co., Wisconsin, col- 

 lected in August by Professor W^heeler, probably also belongs 



4. SciophUa Jiabilis n. sp. 

 Male. Length 4 mm. ; wing 3 mm. Head black, antennae 

 fuscous, yellow at the base, face, proboscis and palpi dusky 

 yellow to subfuscous, hairs yellow ; intermediate antennal joints 

 one and one-half times as long as broad. Thorax wholly yel- 

 low with only a small spot at base of metanotum and some 

 small specks on pleural sutures, blackish ; hairs yellow. The 

 first and second abdominal segments, the posterior margins of 

 the third and fourth dorsally and basal half of venter yellow, 

 remaining parts including hypopygium black ; hairs yellow, min- 

 gled with black hairs posteriorly. Hypopygium of the pallipes 

 type, the dorsal lobe of the inferior forceps (resembling those 

 of fig. 117) with about 18 palmate spines and 2 blunt dorsal 

 spines, the superior forceps (fig. 109) slender, much curved, 

 the dorsal plate (appendix externa) prolonged into a serrate 

 spur with 3 or 4 strong setae which are branched (almost pal- 



