Miiy 1S90. 



PSYCHE. 



341 



blackened and fringed with rather coarse black 

 bristles as is also the side included b}' them. 

 Fore coxae pale yellow, their extreme base, 

 only blackened; posterior coxae for the most 

 part concolorous with the pleurae and cov- 

 ered with the same silver-graj dust; on their 

 tips, however, this dark coloring passes into 

 pale yellow. The anterior coxae are covered on 

 their fore faces with bhick hairs, some of 

 which are long and conspicuous, though a 

 greater number are short and evenly distrib- 

 uted. 



Legs pale yellow; apical sixth of fore tibia 

 somewhat incrassated, blackened and pro- 

 vided with several prominent flattened black 

 hairs on its anterior face. These hairs are so 

 graduated in length as to make the tip of the 

 tibia seem more incrassated than it really is. 

 Fore tarsus i^ times as long as the fore tibia ; 

 first joint about \ as long as the tibia, black- 

 ened at its tip, its base on the anterior side 

 bared of the small black hairs which cover 

 the joint; hence, at first sight, this joint 

 seems to have a pale spot where it joins the 

 tibia; second joint somewhat longer than the 

 third, second and third together about equal 

 to the first joint; fourth joint about a third 

 as long as the preceding joint, black, except 

 at its base, and somewhat broader than any 

 of the preceding tarsal joints; fifth joint 

 considerably, dilated, flattened, oval, dark 

 brown, fringed with short black hairs on its 

 outer edge. The claws are inserted on the 

 middle of the inner long side of the oval; 

 hence the dilatation of the fifth joint has not 

 taken place, as in some other species, at 

 right angles to the long axis of the tarsus, 

 but obliquely. Median femur with preapical 

 bristle ; median tarsi dark brown or black 

 from the tip of the first joint. Hind femora 

 with short preapical bristle, ciliated on both 

 their anterior and posterior edges. The pos- 

 terior cilia are black, very long and form a 

 series extending nearly the entire length of 

 the posterior face ; near the base of the femur, 

 however, they become much shorter and pale 

 yellow; the cilia of the anterior edge are all 



black, much shorter and occur only on the 

 basal half of the femur. Hind tibiae some- 

 what incrassated with infuscated tips ; the 

 usual setae are long and conspicuous; on the 

 inner face a dark brown band runs from the 

 insertion of the tibia to its middle, where it 

 ends in a point ; the infuscated tip of the tibia 

 sends out a much shorter dark brown band 

 which stops before reaching the basal band. 

 Hind tarsi deep black, the metatarsal joint a 

 little thickened. Halteres honey yellow. 

 Wings uniformly grayish hyaline with brown 

 veins ; costa slightly thickened where it meets 

 the first longitudinal vein ; fourth longitudi- 

 nal vein not broken, but exhibiting the usual 

 double flexure ; posterior cross vein meeting 

 the fifth longitudinal vein nearly at right 

 angles. 



Habitat : Massachusetts. 



This species may be easily distin- 

 guished from all described North Amer- 

 ican species of Dolichopits by the pecu- 

 liar coloring and conformation of the 

 fore feet. The descripiton is taken from 

 three males sent me by Mr. S. Henshaw. 



DOHCHOPUS GERMANUS, n. Sp. $. $. 



$ Length 4. — 5 mm. ; length of wing 4. — 

 4.5 mm. 



Metallic green, not very bright. Palpi pale 

 yellow, face rather narrow, silvery white. 

 Antennae of the same shape as in D. varia- 

 bilis^ smooth, red; first joint rather long, 

 cuneate ; second joint short and broad ; third 

 joint of moderate size, about as broad as long; 

 apical half infuscated, ending in a short 

 but acute point; arista inserted on about 

 the middle of its dorsal contour. Front sub- 

 dued metallic green ; cilia of the superior 

 orbit black, on the inferior orbit dirty 

 white. Thoracic dorsum metallic green 

 with a golden reflection, dusted in front 

 with yellowish scales ; pleurae metallic green, 

 becoming pearly from a covering of white 



