112 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 5 1 



Differs from Fabricia, to which it is most nearly related, in the 

 absence of ocellar bristles, and form of palpi and third antennal 

 joint. 



Type, the following species (to be figured in the forthcoming new 

 edition of Dr. S. W. Williston's Manual of Diptera, fig. 157). 



Eufabricia flavicans, sp. nov. 



1 hie female, Brazil, H. H. Smith, Coll. Received from Dr. S. W. 

 Williston. 



Length. 14 mm. General yellowish or rufous yellowish in ground 

 color. Head silvery whitish, frontalia and first two antennal joints 

 reddish yellow, third joint and arista light brown. Palpi yellow. 

 Parafrontals with a faint tinge of brassy yellow. Thorax and scu- 

 tellum brassy yellow pollinose. Abdomen rufous yellow, first seg- 

 ment brown on depressed median portion, other segments more 

 tinged with rufous on median line, third segment wholly so tinged. 

 Narrow anterior margin of second and third and all of anal segment 

 yellowish silvery pollinose. A median marginal pair of macrochaetse 

 on second segment, a marginal one on each side of first and second 

 segments, a median marginal pair and three lateral marginal ones 

 on third segment (eight marginal in all), anal segment with a discal 

 and marginal row. Legs blackish or brown, the tibiae more or less 

 rufous, hind tibiae especially so. Claws reddish or yellowish brown, 

 tips darker, pulvilli yellowish. Wing bases broadly yellow, tegulae 

 whitish. 



Type.— Cat. No. 11,805, U. S. X. M. 



Subfamily HvsTRicnx.it 

 Genus Dejeania Robineau-Desvoidy and allies 



Dejecmia vexatrix Osten-Sacken and Paradejeania rutilioides 

 Jaennicke. — Speaking of Dejeania vexatrix, Osten-Sacken said: "It 

 is very remarkable that Dejeania, a South American and Mexican 

 genus, should occur so commonly at high altitudes in the Rocky 

 Mountains among alpine forms, and it would be worth the while to 

 investigate on what insect (probably Lepidopterous) it preys as a 

 parasite" (Western Diptera, p. 343). At the close of his paper 

 (1. c, p. 354), he again referred to the same matter, and included a 

 reference to P. rutilioides, not, however, mentioning it by name. 



These instances of a tropical group of tachinids developing boreal 

 forms is paralleled in birds by the parrot genus Rhynchopsitta, pecu- 

 liar to the pine region of the Sierra Madre of western Chihuahua. 

 The tropical bird group of parrots has here developed a sub-boreal 



