JAMES S. HINE 
291 
COSTA RICAN DIPTERA 
COLLECTED BY PHILIP P. CALVERT, PH.D., 1909 1910 
Paper 2. — Tabanidae and Asilidae 
BY JAMES S. HINE 
The material in these two families of Diptera collected by 
Dr. P. P. Calvert^ is of more than ordinary interest, as our knowl- 
edge of the range of several species is greatly extended, some 
new and rare species are presented for study, and the need of 
further collecting in the region emphasized, if the published 
results of work done on the faunas of Central and South America 
are to be harmonized. As a rule the species from the southern 
parts of North America and the northern parts of South America 
have been published separately, in some cases without due atten- 
tion to distribution. My main interest in this region is a study 
of the range southward of species of the family Tabanidae, espe- 
cially, occurring in North America. Besides the Costa Rican 
material in Dr. Calvert’s collection I have used much other mate- 
rial from Mexico, Central America and South America and have 
given such observations on distribution as the specimens and 
facts at hand furnished. 
TABANIDAE 
Pangonia prasiniTentris Macquart 
1846. Pangonia prasiniventris Macquart, Dipt. Exol., Suppl., i, 29. 
Three male specimens taken December 23, 1909, with the 
note “ in road south of Turriicares.” The green or greenish abdo- 
men, darkened toward the tip, and yellowish wings, thorax and 
legs suggest the species. Macquart’s type is reported as having 
been taken in Colombia, Schiner had seven males and six females 
from South America, and Osten Sacken had four males from 
Panama and Colombia. Besides Dr. Calvert’s specimens there 
iPor data on the localities in which the collection was made, see these 
Transactions, xl, pp. 1 to 8 (1914), and on the dates of collecting. Appendix I, 
pp. 493 to 500, of “A Year of Costa Rican Natural History” by A. S. and P. P. 
Calvert, New York, MaemiUan, 1917. 
TRANS. AM. ENT. SOC., XLIII. 
