92 Journal of Entomology and Zoology 
segments two to five with a narrow longitudinal brown sublateral streak; sternites 
brown, the caudal margins of the segments pale. Hypopygium generally similar to T. 
submaculata, differing as follows: Ninth tergite with the lateral horns very short and 
broad, the tips acute, not long and tapering as in submaculata; outer pleural appen- 
dage short and broadly flattened, the apex subtruncated, with a few coarse setigerous 
teeth, in submaculata this appendage is more slender, tapering to the acute point, at 
about midlength on the outer margin with a prominent spine to produce a bifid appear- 
ance; gonapophyses broad and flattened at the base, the slender tips short, not long 
and sinuous as in submaculata; eighth sternite with a pair of strong reddish fused 
bristles that are decussate, in addition to the smaller sete. In the female, the sixth 
and seventh tergites are dark brown, the ovipositor acute, the tergal valves being 
especially long and slender. 
Habitat.—Illinois. 
Holotype, ¢, Alto Pass, Union County, June 5, 1919 (Alexander). 
Allotopotype, 2. 
Paratopotypes, + ¢ 2; paratypes, 206 9, Makanda, Jackson County, June 4, 5, 
1919 (Alexander and Malloch); 5 89, Dubois, Washington County, June 3, 1919 
(Malloch). 
Type in the collection of the Illinois State Natural History Survey. 
Tipula mallochi is common in the “Ozark” region of southern Illinois during 
early June, when it flies with other species of the genus as T. submaculata Lw., T. 
tuscarora Alex., T. translucida Doane, T. morrisoni Alex., T. mingwe Alex., T. 
umbrosa Lw., T. flavoumbrosa Alex., T. fuliginosa Say, and, in proximity of low wet 
cliffs, with T. ignobilis Lw. 
