ERIOCERA. 255 



2. Antenna? of the male much longer than those of the female, finely 

 pubescent on both sides. 



3. E. wilsonii, n. sp. % . — Ferruginea, maculis humeralibus atris ; 

 antennis maris corpore longioribus, pubescentibus ; cellulis posterioribus 

 quatuor ; halteribus fuscis. 



Ferruginous, with deep black humeral spots ; antennae of the male longer 

 than the body, pubescent ; four posterior cells ; halteres brown. Long, 

 corp. 0.4. 



Male. Body yellowish-red ; palpi rather short, brownish to- 

 wards the tip ; antennse more than once and a half the length of 

 the body ; clothed on both sides with a delicate, short pubescence ; 

 on the under side with some scattered stronger bristles ; the third 

 joint, if bent backwards, would reach beyond the basis of the 

 abdomen ; the fourth is nearly of the same length with the third ; 

 the basal portion of the antennae is red ; the remainder, beginning 

 with the tip of the third joint, brown. Thorax shining above, 

 with two more or less distinct, often almost obsolete, brownish 

 stripes ; a deep black, elongated spot between the collare and the 

 root of the wings ; a brownish spot above it, near the suture, and 

 another one on the other side of the suture, above the root of the 

 wings; knob of the halteres more or less dark brown. Abdomen, 

 including the forceps of the males, reddish-yellow. Feet yellow- 

 ish tawny, tip of the femora, of the tibiae, and the latter portion 

 of the tarsi brownish. Wings with a pale brownish-yellow tinge ; 

 stigma pale brownish ; often, but not always, a stump of a vein 

 near the origin of the praefurca ; four posterior cells. 



Hab. Delaware (Dr. Wilson) ; three male specimens. 



B. Antennse short in both sexes. 



4. E. fuliginosa 0. S. % and 9 . — Obscure fusca, alis fuscis ; an- 

 tennis maris et feminse seque longis, brevibus ; cellulis posterioribus 

 quatuor ; halteribus fuscis. 



Dark brown, wings brown ; antennse in both sexes of the same length, 

 short ; four posterior cells ; halteres brown. Long. corp. 0.4 — 0.5. 



Syn. Eriocera fuliginosa 0. Sacken, Proc. Ac. Nat. Sc. Phil. 1859, p. 243. 



Lower part of the head and rostrum tawny ; palpi black ; an- 

 tennae black ; short in both sexes ; when bent backwards, they 

 would not reach beyond the root of the wings ; basal joints yel- 

 lowish-ferruginous. Thorax dull dark brown, with a slight yellow- 

 ish-gray reflection above ; four more or less distinct dark brown 



