339 



Eyes narrowly separated ; antenna slightly longer than head and 

 thorax together. Hairs on mesonotiim more sparse than in the male. 

 Abdomen spatulate. Legs not as elongate as in male; basal joint of 

 hind tarsus slightly more than half as long as hind tibia; fifth joint of 

 all legs with 5-6 pairs of spines on under side ; tarsal claws on all legs 

 more than half as long as fifth joint, the hind pair the longest. Wings 

 as in male. 



Length, 2.5-3 ^^''• 



Type locality, on banks of Sangamon Riyer at Monticello, June 

 21-30, 1914 (J. R. Malloch). Paratypes from banks of Mackinaw 

 Riyer at Lilly, 111., June 11, 1914 (C. A. Hart), and from banks of 

 Stony Creek at Muncie, 111., July 5, 1914 (J. R. Malloch). 



I belieye the female just described to be of this species, but I have 

 no justification for this belief except the fact that both sexes were 

 taken at the same time and place. The male is readily separated from 

 caiidcUi by the much longer antenna?, the presence of the two pairs of 

 spines on the under side of the fifth joint of the hind tarsi, and the 

 elongate legs, the basal joint of the hind tarsus in caudelli being much 

 thicker than in Jialtcralis and barely more than half as long as the tibia. 

 The female differs from that of caudelli in the more slender and longer 

 antennae, the pale color of the palpi and coxae, and in haying the legs 

 more elongate, the basal joint of the hind tarsi being of equal thick- 

 ness throughout its entire length, whereas in caudelli it is thickest at 

 the base and tapers to the apex. 



Hartomyia, n. gen. 



This genus may be recognized by the following characters : anten- 

 nae elongated, the apical fiye joints conspicuously so, plumose on the 

 basal eight joints of flagellum in male, short-haired throughout in fe- 

 male; mouth parts of female w'ell developed, those of male less de- 

 veloped. Thorax with a series of distinct setula; along the mesial and 

 meso-lateral lines, and a group of similar setulae in front of wing-base. 

 Abdomen and legs similar to those of JoJiannsenouiyia. Wings 

 bare, the spurious Y-shaped vein present in the cell between radius and 

 media; media forking very distinctly beyond the cross vein, i. e., petio- 

 late ; anal vein simple. 



Separable from Johannsenomyia by the petiolate media.* 



Type of genus, Ceratopogon pictus Coquillett. 



*I have observed that picta and aniennaUs when at rest invarialdy have the 

 wings spread in the form of an inverted V, whereas in the species of Joluinnscnomi/ia 

 and other genera the wings are closed over the body. I have not, however, observed 

 a sufficient number of species to enable me to decide whether the rule holds good for 

 the species generally. 



