10 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 76 



PROCECIDOCHARES MINUTA Snow. 



Oedaspis minuta Snow, Kansas Univ. Quart., vol. 2, 1894, p. 164, pi. 6, 

 fig. 2.— Cole, Proc. Cal. Acad. Sci., vol. 12, 1923, p. 472. 



Rhagoletis minuta Aldrich, Ent. News, vol. 24, 1913, p. 220. 



Oedaspis atra Felt, Key to N. Amer. Ins. Galls, 1919, p. 198; 34th N. Y. 

 Kept., 1918 (1922), p. 76. 



Snow described the species from a single male in poor condition, 

 collected in Montana. I reported a specimen under the name of a 

 similar genus, from Olancha, Owen Valley, Calif. Cole reported the 

 species from Puerto Ballandra, Mex,, on the Gulf of California. 



Snow said that the type was considerably damaged. It is before 

 me, and apparently has not suffered since 1894. I would be at a loss 

 to describe the species from it, but fortunately have a well-preserved 

 specimen from Colorado correctly identified by Coquillet, which 

 agrees with it so perfectly that it may be safely taken as the same 

 species; other specimens cited below agree sufiiciently. My descrip- 

 tion is in some details drawn from the Colorado specimen. 



Head pale yellow, the black of the occiput extending to the mouth 

 behind, but behind the lower part of the eye to the mouth the color 

 is white and the region seems slightly inflated. Front pale yellow, 

 the color extending back on each side of the ocellar triangle, which 

 with the sides of the vertex is dull black; one upper and two lower 

 orbitals; face nearly white, parafacials narrow, cheek one-seventh of 

 eye height; antennae and palpi yellow. Thorax black, middle third 

 slightly pruinose; no anterior dorsocentral; the flattened white acros- 

 tichal hairs in a single row at the extreme front, but increasing to 

 several before the suture; lateral anterior shining spot very large, 

 the posterior divided by a row of white hairs; pleura shining, the 

 sternopleura with no black bristle (type); a white pollinose streak 

 extending from behind the wing to the middle of the metanotum below 

 the opaque black postscutellum. Abdomen black, subshining, with 

 white hairs and no black ones at all. Legs yellow, the coxae and 

 femora black. Wing as figured by Snow, the apical band connected 

 with the second or subapical in front of the third vein (in the Colo- 

 rado specimen not extending much behind the third vein at its tip). 

 Length, 2.2 mm. (type, the Colorado specimen 2.4 mm.) 



Other material which I assign to the species is as follows: Three 

 males, two females, Manti, Utah, June 24 to July 3, reared by H. R. 

 Hagan from ovate woolly lateral bud gall on Ghnjsothamnus graveo- 

 lens (Felt's record, as atra) ; one male, one female, Colorado (Baker 

 No. 1569); one male, three females, Claremont, Calif. (Baker); three 

 males, Los Angeles; one female, four males, Williams, Ariz. (Barber) ; 

 one male, Olancha, Calif., on Ohrysothamnus (Aldrich) ; one female, 

 Colorado Canyon, Ariz. (Barber); three males, Tucson, Ariz. 

 (Aldrich); one female, Arizona, no collector. The females often 

 have a blackish or quite black bristle on the sternopleura, and some 



