1895.] NATCH AL SCIENCES OF PHILADELPHIA. 317 



Length 6 mm. St. Augustine, Florida. C. W. Johnson, after 

 whom it gives me pleasure to name this interesting genus. Described 

 from a single specimen. 



HELICOBIA n. gen. 



First and third veins bristly, the others hare, apical cell open, end- 

 ing at three-fifths the distance from second vein to the wing-tip ; bend 

 of fourth vein rectangular and bearing a long appendage; hind cross- 

 vein much less oblique than the apical, terminating at last third of 

 distance between the small and the bend, its posterior end much 

 nearer the wing-margin than to the small cross vein. Head at the 

 vibrissa? nearly as long as at insertion of antenna', its lower margin 

 convex ; frontal bristles descending to middle of second autenual 

 joint.; sides of face each bearing a row of short maerochsetse ; antenna? 

 three-fourths as long as the face, the third joint twice as long as the 

 second ; arista long plumose on the basal three-fifths, the remainder 

 bare; vibrissa? inserted slightly above the oral margin, a few short 

 bristles above each ; cheeks one- third as broad as the eye- height, the 

 eyes bare. Abdomen' oval, consisting of four segments, densely gray 

 pollinose. Type: Sarcophaya helicis Townsend (Psyche, February, 

 1892, pages 2.20, 221). Charlotte Harbor, Florida (Mrs. A. T. 

 Slossou). Mississippi (H. E. Weed). Illinois (Dr. W. A. Nason). 

 District of Columbia and Los Angeles, Cal. (D. W. Coquillett). 

 Ohio (H. A. Surface). 



Drosophila maculosa n. sp. $ . 



Head, including the antenna? and mouth parts, yellow, an ocellar 

 dot and transverse pair of spots above the centre of the occiput, black. 

 Thorax, pleura and scutellum opaque yellow, unmarked. Abdomen 

 shining blackish-brown, the first segment, front corners of the second, 

 and a spot near each front corner of the third and fourth, yellow. 

 Legs, including the tarsi, yellowish white. Wings hyaline, marked 

 with four brown spots, one at tips of the first and second veins and 

 one on the small and hind cross veins, that on the small cross vein less 

 than one-fourth as large as either of the others; the costal vein only 

 reaches the apex of the third. Length 3 mm. Charlotte Harbor 

 (Mrs. A. T. SlossonJ, and Archer, Florida. Two specimens ; the 

 one from the latter locality is contained in the National Museum 

 collection. 



