42 PROCEEDINGS OF THE NATIONAL, MUSEUM vol.68 



kins referred under the name of "black oak wheat" in a note.* 

 These specimens were from Wescott, Mo., and Texarkana, Ark. 

 Doctor Hopkins collected galls at Kanawha Station, W. Va., Sep- 

 tember 25, 1923. The writer collected galls at Evanston and High- 

 land Park, 111.; Ironton and Poplar Bluff, Mo., and at Bluemont, 

 Va. Galls collected at Evanston on October 8, 1916 contained pupae 

 on September 22, 1917 and adults on November 16 which emerged 

 March 23-April 22, 1918. After the galls drop they change shape 

 somewhat as the thick nutritive layer is used up, becoming distinctly 

 spindle-shaped and only a thin brittle shell is left in the swollen 

 central region. As the flies reared agree with the type in having 

 the mesoscutum smooth, parapsidal grooves complete, head sculp- 

 tured, no malar groove, antennal segment 3 longer than 4 and claws 

 simple, the species is here transferred to Dryocosm/as. 



DRYOCOSMUS FLORmENSIS (Beutenmueller) 



Dryophanta floridensis Beutenmueller, Canad. Ent., vol. 49, 1917, p. 349. 

 Andricus peltatus Wells and Metcalf, Canad. Ent., vol. 53, 1921, pp. 212-3. 

 figs. 2, 1-5. 



The rearing of adults from the peltatus gall in the spring of 1923 

 enables the writer to supplement the original description of the 

 female and describe the hitherto unknown male. 



The female has the cheeks scarcely broadened behind the eyes, 

 malar space without groove. Prothorax narrow in the middle. 

 Parapsidal grooves percurrent. No median groove. Mesoscutum 

 microscopically coriaceous but shining with a sparsely pubescent 

 area about the anterior end of each parapsidal groove. Scutellum 

 without distinct pits, the indistinct transverse groove bounded later- 

 ally by carinae which diverge back on to margin of disk. Disk finely 

 rugose. Carinae on propodeum weak, enclosing a transversely ellip- 

 tical area. Wing pubescent and ciliate. Abdomen of freshly killed 

 specimen shows ratio of length to height to width as 30 : 32 : 22. 

 Second tergite longer than 3-7, its hind margin making an angle of 

 about 80° to longitudinal axis of abdomen. Ventral spine in side 

 view conical, three times as long as broad. Length 2.7-3.2 mm. 

 Average of 15, 3.06 mm. 



3Iale. — Differs from female in having 15-segmented antennae, the 

 third longest and slightly bent. The abdomen is shorter than the 

 thorax and laterally compressed. Length 2.0-2.3 mm. Average of 

 10, 2.14 mm. 



As the four type flies were almost wholly destroyed by pests before 

 reaching the National Museum a female reared by the writer from 

 the characteristic gall is chosen as a neotype. It is labeled "Alexan- 



1 Proc. Ent. Soc. Wash., vol. 5, 1903, pp. 151-2. 



