298 DIPTERA FROM SOUTHWESTERN UNITED STATES 



(in an irregular series) and one to two postero-ventral bristles; hind femur 

 with six to eight widely placed bristles on the entire length of antero-ventral 

 surface and three to four on basal half of postero-ventral; hind tibia with two 

 to four antero-ventral, seven to nine unequal sized antero-dorsal, and three 

 long posterior bristles. Veins 3 and 4 distinctly convergent apically; outer 

 cross-vein oblique, distinctly curved. 



Female. — Eyes separated by one-third the head-width; orbits one-fourth 

 as wide as interfrontalia, almost bare except for the bristles; cruciate bristles 

 strong. In other respects similar to male. Length, 4.5 to 5.25 mm. 



Type.— d"; Dubois, Illinois, May 23 to 25, 1917. [Illinois]. 

 Paratypes. — 1 9, topotypical, [Illinois]; numerous specimens of 

 both sexes from Urbana, Illinois, April 5 to 7, 1909; Savoy, Illi- 

 nois, March 26, 1917; Be'.tsville, Maryland, Plummer's Island, 

 Maryland, April to August inclusive. 



The types are in the collection of Illinois State Natural History 

 Survey, a pair of the Urbana paratypes are in the collection of 

 the Academy of Natural Sciences of Philadelphia, and the Mary- 

 land specimens are in the collection of the United States Bureau 

 of Biological Survey. 



This species is smaller than divisa Meigen and ambigua Meigen, 

 resembling the latter in having the hypopleura bare, but it is 

 smaller than that species, has the dorsal abdominal stripe uniform 

 in width on its whole length and has the ej^es less widely separated. 



ANTHOMYIA Meigen 



I consider as belonging to this genus only those species that 

 have the propleura hairy cephalad and slightly ventrad of the 

 spiracle, and the lower caljqDter distinctly projecting. 



Anthomyia pluvialis Linne, var. 



1761 Musca pluvialis Linnaeus, Faun. Suec, (2), 455. 



One female in collection agrees in color with several I have 

 from Illinois, JNIassachusetts, and Virginia. These specimens dif- 

 fer from typical pluvialis in having the dorsum of thorax with a 

 brown vitta on each side of middle, instead of the five black spots 

 that are present in the former. It is possible that the form here 

 recorded is distinct from pluvialis, but I have no males and hesi- 

 tate to give a definite opinion. Locality; Cloudcroft, New Mex- 

 ico, June 16, 1902. 



