1934 ] 
The Jamaican Vermileo 
237 
not infuscated posteriorly and the first segment bears an- 
terodorsally a deep black, transverse band. The halteres 
have yellow knobs as in the Cuban variety and the wing- 
venation is the same, but both the membranes and the veins 
are more deeply fulvous and the black, transverse band 
across the middle of the wing is decidedly narrower, with 
more irregular contour. 
Since we know the precise locality in which Miss Perkins 
took her specimen it should now be easy to find the larvae, 
which make their pits like the ant-lions in sand or dust under 
overhanging rocks or embankments, and to ascertain, by 
rearing a number of imagines of both sexes, the precise dif- 
ferences between the Jamaican and Cuban forms of this 
beautiful fly. 
