TWENTY-FIFTH ANNUAL MEETING. 135 



do not show the very oblique, nearly vertical stripes mentioned by Osten Sacken 

 ( Prod. Mon. Tabanidte, vol. I, p. 396), but have them nearly horizontal. The arrange- 

 ment of the bands is as follows: Eyes green, with four slightly oblique purplish- 

 bronze bands, the lowermost one forming the lower border of the eye, and the 

 uppermost one being some distance from the upper angle of the eye. 



Tabanus punctifer Osten Sacken. — This is a large black species, with a tan-col- 

 ored thorax, which is found more commonly throughout this region. It attacks 

 horses and cattle. One ?, Las Cruces, N. M., June 9; one $, Fort Selden, N. M., June- 

 13 (Dona Ana county); two $?, La Vega de San Jose, N. M., August 4 (Valencia 

 county); one 5, Chaves, N. M., August 6 (Valencia county); also, one 5, Grand Caiion 

 of the Colorado river, Arizona, Hance trail, about 4,000 feet below rim of canon, 

 July 11 (Yavapai county). 



Tabanus lineola Fab. — Four 2S, Las Cruces, N. M., May 20 to June 4; and one S, 

 Las Cruces, N. M., May 23. This species is quite frequently found on horses here. 



Tabanus vivax Osten Sacken. — One ?, taken in the Grand Canon, Hance trail, 

 about 4,000 or 5,000 feet below rim, July 11 (Yavapai county), agrees very well with 

 Osten Sacken's description of the 5 of this species (the 5 is not described). (See 

 Prod. Mon. Tabanidfe, vol.11, p. 446.) It is only 12 mm. in length, and may be a 

 distinct species; but I do not feel competent to decide on this point without more 

 material. The palpi are whitish rather than reddish, and the bases of the tibice are 

 rather yellowish than reddish. The frontal callosity is rounded in outline above, 

 very black, and polished; the face is short, the antennse being inserted low; the 

 eyes, revived over wet sand, are purplish, with two almost horizontal green bands 

 but little below middle of eye, the upper angle of eyes blackish; or, the eyes may be 

 described as having two green and three purplish bands, the lowermost purplish 

 band forming the lower border of the eye, and the uppermost purplish band border- 

 ing the black, upper angle. 



ON A PECULIAR ACALYPTRATE MUSCID FOUND NEAR TURKEY 



TANKS, ARIZONA. 



BY 0. H. TTLEK TOWNSEND. 



While on a trip by wagon the past summer to the Grand Canon of the Colorado 

 river, a peculiar dipterous insect was met with in numbers, July 1, in a certain re- 

 stricted locality, a few miles west of Turkey Tanks, Ariz., on the road to Flagstaff. 

 The insects were found somewhere near the center of a large open stretch of meadow- 

 like country, probably about three or four miles from the Tanks, and about 10 miles 

 from Flagstaff. They were evidently flying, as they came in the wagon, alighting 

 on whatever they happened to strike. The locality is probably about five or six 

 miles east of the base of the San Francisco mountains. They occurred for some 

 distance as we drove along the road, probably for a mile or so, and not a specimen 

 was seen at any other place during the whole trip, comprising a drive of over 1,200 

 miles through southwestern New Mexico and northeastern Arizona. 11 The more re- 

 markable thing concerning this occurrence is, that on our return, while traveling 

 along the same road, July 17, we found the same fly in numbers coming in the 

 wagon at, as nearly as I can say, the very same place along the road. In neither 

 case did I get out of the wagon to capture specimens, as I was able to take plenty 

 of them without this trouble. 



The species is very striking in appearance, being of a narrow, elongate form, 

 with vei'y long, slim legs, and an elongate, anteriorly-produced head. These pecul- 



