1916.] NATURAL SCIENCES OF PHILADELPHIA, 505- 
on June 18. Associated with this species were the following crane- 
flies: Dicranomyia pubipennis, Limnohia indigena, Limnophila 
niveitarsis, L. toxoneura, L. areolata, L. adusta, L. brevifurca, L. 
rufihasis, L. munda, L. montana, L. lenta, L. emmelina, Ula elegans, 
Rhaphidolabis (Rhaphidolabina) flaveola, Dolichopeza americana, 
Tipula senega, T. hermannia, T. macrolabis and T. valida. 
This interesting pallid species gave some trouble in assigning it 
to this genus The general appearance of the fly is altogether that 
of Gononiyia, but the presence of the radial cross-vein, the very 
elongate subcosta and the position of the tuberculate pits make it 
more probable that the present reference is the correct one. In its 
venation it departs widely from that of the genotype, E. stigmatica 
Osten Sacken (Eastern Nearctic), in the oblique, Gonomyia-like course 
of vein Ro, in this respect suggesting certain of the European 
Empedse. These insects with the oblique R2 certainly appear 
different from stigmatica, and if this difference were worthy of a name 
it is this group that would have to be separated off from stigmatica, 
the genus Empeda being erected for the species with the short cell Ri 
and the normal, EriopteraAxkQ course of vein 7^2. This Gonomyia- 
Erioptera group of species gets more complex with the accession of 
new forms, and it seems probable that the best basis for a division 
is the position of the tuberculate pits, these being far cephalad in the 
Gonomyia-like forms and retreated far backward and lying at nearly 
mid-length of the sclerite in the genera and subgenera related to 
Erioptera. 
MOLOPHILUS Curtis. 
Molnphilus Curtis; British Entomology, p. 444 (IS.3.3). 
/Molophilus fultonensis sp. n. 
Much larger and darker colored than M. pubipennis to which it is 
most closely related; antennae of the female much longer than in the 
corresponding sex of pubipennis. 
Male. — Length, 3.5-4.4 mm.; wing, 5.6-6.4 mm. 
Female. — Length, 4.5-5 mm.; wing, 5.3-6 mm. 
Very similar to the smaller M. pubipennis Osten Sacken, differing 
as follows: much larger and darker colored, especially in the male 
sex, the abdomen being dark brown instead of yellow; thorax without 
the rich reddish tints of pubipennis; pronotum not bright yellow as in 
pubipennis. Hypopygium with two chitinized hooks (Plate XXXI, 
figs. 95, 96), the curved hook directed abruptly ventrad, ending in a 
long slender point; the smaller straight one is more dorsad in position, 
minutely denticulated along the ventral face; proximo-lateral angle 
