182 
Psyche 
[Sept. 
gin of the second segment, and still more narrow margin 
of the third segment is pale yellow. The abdomen is 
strongly flexed downward beginning with the third seg- 
ment, its extremely short, everywhere wholly appressed 
pile is white except broadly over the middle of the second 
segment where it is black. There is a small, lateral yel- 
low spot on the sides of the first segment, scarcely dis- 
cernible from above. Legs: blackish brown, nearly the 
basal half of all tibiae whitish. All pile white; femoral 
setae black, very sharp pointed. Wings: hyaline, the an- 
terior border as far as the spurious vein very dark sepia 
brown, without evident lighter areas, even in the costal 
cell. Loop of third vein very shallow, and with a short 
spur. 
Holotype: a male, Noumea, New Caledonia, October 
16, 1940 (F. X. Williams). Paratypes : 2 males, La Foa, 
New Caledonia (C. L. Remington). Holotype in the 
Museum of Comparative Zoology (No. 27559). There is 
a paratype in the collection of the author and another in 
the Museum of Comparative Zoology. 
Dr. Bequaert has kindly called my attention to the 
wasp which mimics this fly. The wasp model is Pachy- 
menes quodi Vachall, a Eumenid. Mr. Williams, in the 
Proceedings of the Hawaiian Entomological Society , 
1945, Yol. XII, plate xx, illustrates the fly and the wasp 
and calls attention to other mimics. 
