1953] 
Fairchild — Mexican Tabanidae 
51 
difficult to separate pumiloides and subtilis from the de- 
scriptions. Both were described from Mexico, pumiloides 
from Guerrero and Jalisco, subtilis from Oaxaca. Direct 
type comparisons will be needed to achieve certainty in 
this difficult group, but the present species is separable on 
color characters at least. 
References 
Stone, A. 
1938. Horseflies of the subfamily Tabaninae of the Nearctic region. 
U.S.D.A. Misc. Pub. 305: 1-171, 79 figs. 
Philip, C. B. 
1941. Comments oin the .supra -ispeciflc categories of Nearctic 
Tabanidae. Can. Ent., 73: 1-14. 
An Australian Trapeziopelta (Hymenoptera: Form- 
ICIDAE). — Specimens of Trapeziopelta collected by me at 
Mt. Dandenong (2000 feet) and Olinda (1600 feet) under 
stones in grassy-floored moist sclerophyll (eucalypt) forest, 
Dandenong Ranges, Victoria, Australia compare very 
closely with the types of Myopias tasmaniensis Wheeler 
(1923, Psyche, 30: 177-179, fig. 1, worker), kept in the 
Museum of Comparative Zoology at Harvard University. 
My series also compared equally well with types of Trap- 
eziopelta diadela Clark (1934, Mem. Nat. Mus., Melbourne; 
No. 8: 54-55, pi. 4, figs. 7, 8, worker and female). All of 
the specimens concerned belong to one species, which is 
correctly assigned to Trapeziopelta on the basis of the 
clypeal structure. The correct name of the species is there- 
fore Trapeziopelta tasmaniensis (Wheeler), new combin- 
ation, and T. diadela Clark is its new synonym. The species 
is now known from widely separated localities in Tasmania 
and southern Victoria, where it appears to prefer higher- 
rainfall sclerophyllous forest. 
At least two other species of Trapeziopelta, remaining 
unstudied, occur in southeastern and northeastern Queens- 
land. — W. L. Brown, Jr., Museum of Comparative Zo- 
ology, Harvard University. 
