194 The Ohio Journal of Science [Vol. XX, No. 6, 



Rostrum and palpi dark brownish black. Antennae black, the 

 flagellar segments subc34indrical with conspicuous verticils. Head 

 dark brow^n, sparsely brownish gray pruinose, most of the pruinosity 

 destroyed in the type; a delicate, iinpressed median line. 



Mesonotal prasscutum dark brown with three browmish l^lack 

 stripes, the median stripe entire, broadest anteriorly; scutum with the 

 lobes dark brown, the median area pruinose; scutellum dark brown; 

 postnotum reddish brown. Mesopleura dark brown; metapleura and 

 lateral sclerites of the postnotum paler brown; stemites dark brown. 

 Halteres dark brown, the base of the stem and the knobs obscure yellow. 

 Legs with the fore coxae dark brown; remaining coxse obscure yellowish; 

 trochanters obscure yellow; femora brownish yellow with a narrow, 

 brown band before the tip; tibiae light brown, narrowly tipped with 

 dark bro^^al; tarsi dark brown; tarsal claws very long and slender, with 

 two teeth, the longest just before midlength, the second basal in position. 

 Wings subhyaline with a heavy dark brown pattern along the veins, as 

 follows: a large spot at the origin of Rs; the large stigmal blotch, 

 continued down onto the fork of Rs; cord and outer end of cell 1st M2 

 narrowly seamed with brown; narrow brown seams along veins Cu, Cu2, 

 and the Anal veins; veins dark brown. Venation: Sci ending slightly 

 before midlength of Rs, Sc2 at the tip of Sci; Rs long, square and long- 

 spurred at origin ; r removed from the tip of Ri but this distance consid- 

 erably shorter than in L. indigena, a little shorter than the basal deflec- 

 tion of Cui; basal deflection of Cui a short distance before the fork of M. 



Abdominal tergites brownish black, conspicuously ringed caudally 

 with yellowish, the yellow pattern narrowed or obliterated at the lateral 

 margins of the segments; stemites two to foiu- yellowish, the lateral 

 margins narrowly black; remaining stemites brownish black, slightly 

 paler medially, the caudal margin very narrowly pale. Hypopygium 

 obscure brownish yellow. 



Habitat. — Alaska. 



Holotype, cT, Katmai, August, 1917 (Jas. S. Hine). 



Limnobia indigenoides is most nearly related to L. indigena 

 Osten Sacken but is readily told by the coloration of the femora 

 and the unusual reversal of pattern of the abdominal tergites. 

 The wing-pattern is much heavier and confined to the veins 

 beyond the origin of the sector with the exception of narrow 

 seams to the cubital and anal veins. 



Genus Dicranomyia Stephens. 



Dicranomyia halterata Osten vSacken. 



1869 Dicranomyia halterata Osten Sacken; Mon. Dipt. N. Amer., pt. 4, pp. 71, 72. 



A few males and females from Savonoski, Naknek Lake, 

 July, 1919. 



