Tue CRANE-Fircs oF New York — Part II 933 
Bruch (in litt.) mentions the rearing of Trimicra reciproca (Walk.) in 
Argentina from larvae very similar to that described above, occurring in 
the same type of habitat. 
Genus Empedomorpha Alexander (Gr. Empeda + shape) 
1916 Empedomorpha Alex. Proc. Acad. Nat. Sci. Phila., p. 507-508. 
Empedomorpha is a monotypic genus of flies, evidently related to 
Trimicra. It is very curious in its marked sexual dimorphism, the male 
having an extremely large, hairy stigma, which encroaches upon the 
adjoining veins and often distorts them. The fly is still very insufficiently 
known. It is a prairie-inhabiting species, occurring from South Dakota 
to Texas and New Mexico. Nothing is known concerning the immature 
stages, and the following observations on the habits and occurrence of 
the adult flies are all that are available. 
Empedomorpha empedoides (Alex.) 
1916 (2) Trimicra empedoides Alex. Can. Ent., vol. 48, p. 44-45. 
Empedomorpha empedoides, as stated under the generic account above, 
is a prairie-inhabiting species. Adult flies were found running about 
on the sand flats of the Arkansas River, near Cimarron, Kansas, from 
July 13 to 15, 1917, by H. L. Facklier and the writer. The vegetation 
of the sand bars here is very sparse to almost lacking, a few psammophytic 
grasses being the main element. Associated with these flies on the sandy 
surface were a characteristic group of sand-loving insects, of which the 
following were the most constant: larvae and adults of tiger beetles, 
representing at least three species of Cicindela; ground beetles, Carabidae, 
including such genera as Omophron, Dyschirius, Bembidion, Tachys, and 
a few others; rove beetles, Staphylinidae, such as Stenus; Heteroceridae, 
Psammocharidae, Asilidae, Saldidae, and similar groups. In the cool of 
early evening, numerous small spiders that lurk in hollows and in deserted 
insect burrows during the day emerge from hiding and become active. 
The crane-flies were observed during the hours of bright sunlight, when 
the temperature registered over 100° F. in the sun. They run rapidly 
over the moist sand, their course being very shifting and zigzag, quite 
like that of tiger beetles. They fly readily but only for short distances, 
and prefer to alight on the sand rather than on the vegetation. They 
walk awkwardly over the: sand, but are able to crawl up grass blades or 
