588 PROCEEDINGS OF THE NATIONAL MUSEUM VoL. 118 
in contrast to the bluish-gray color of the remainder of the mesonotum; 
wings entirely hyaline, with no clouding; distance from proximal end 
of discal cell to anterior crossvein 1.1 times the distance from anterior 
crossvein to distal end of discal cell, measured along fourth longi- 
tudinal vein; surstylus very narrow, in the shape of an inverted J, 
when seen in lateral view. 
Amocebaleria tularensis, new species 
FIGURE 88 
In the USNM collection I discovered a specimen in which the male 
terminalia differed from all other species previously described in the 
present work. The specimen was collected in ‘Unnamed Cave,” 
Yucca Creek Canyon, Sequoia National Park, Tulare County, Calif., 6 
Nov. 1949, by Arthur Lange. 
The description given for A. infuscata, new species, will apply equally 
well to this species, except as follows: humeri, scutellum, lateral 
edges of mesonotum, and upper parts of pleura yellowish brown in 
contrast to the ash gray disk of the mesonotum; wings entirely 
hyaline, with no clouding along the crossveins; distance from the 
proximal end of discal cell to anterior crossvein about 1.4 times the 
distance from the anterior crossvein to the distal end of the discal 
cell, measured along the fourth longitudinal vein. 
The type has been deposited in the U.S. National Museum (USNM 
65448). 
Genus Heleomyza Fallén 
Musca Linnaeus, 1761, p. 439 (part). 
Heleomyza Fallén, 1810, p. 19. 
Helomyza Fallén, 1820, p. 3 (part).—Meigen, 1830, p. 47 (part).—Zetterstedt, 
1838, p. 764 (part); 1847, p. 2480 (part).—Czerny, 1924, p. 146; 1927a, 
p. 42. 
Leria Robineau-Desvoidy, 1830, p. 653 (part).—Schiner, 1864, p. 28 (part).— 
Rondani, 1867, p. 124 (part).—Pandellé, 1901, p. 344 (part).—Aldrich and 
Darlington, 1908, p. 77 (part).—Collin, 1948, p. 248. 
Blephariptera Macquart, 1835, p. 412 (part). 
Blepharoptera Macquart, Loew, 1859, p. 57 (part). 
This genus is distinguishable from all others except Trichochlamys 
by the combination of two or more pairs of approximately equal 
prosternal bristles and anterior fronto-orbital bristles equal in height 
to the posterior bristles. Trichochlamys has hairs on the dorsum 
of the scutellum, whereas in Heleomyza this area is bare. Other 
characters found in Heleomyza are: oral vibrissae strong; dorso- 
central bristles 1+3; scutellum with 2 pairs of lateral bristles; middle 
tibia with 1 dorsal preapical bristle and several ventral apical bristles. 
