

PROC. ENT. SOC. WASH., VOL. 24, NO. 2, FEB., 1922 61 



Paratype male differs from the type as follows: Thorax ciorsum yellow brown, 

 the broad median stripe from the collar to less than half way to the suture, the 

 side stripes indicated by shade only; abdomen more yellow than the type. 



Female. Length 5 mm.; wing 5 mm. The female is as pale as the paratype 

 male, but the thoracic stripes are more evident but less so than in the type. 

 Hypopygium, tergite valves longer than the sternitu. Segment one of the 

 antennae is pale yellowish. 



Described from: Holotype male 10 July 1920, Cranbrook, 



B. C.,'2950 ft. 



Allotype female 6 July 1920, Cranbrook, B. C., 



2950 ft. 



Paratype male 15 July 1920, Cranbrook, B. C., 

 295~0 ft. Lamplight. In collection of Dr. 



C. P. Alexander. 



Alexandriaria kooteniensis, n. sp 



Description of type male. Length 5 mm.; wing 5 mm. Color almost exactly 

 as paratype of intermedia except dorsum of thorax which is paler but the dark 

 stripes are more pronounced, the tuberculate pits are not evident. Wings 

 hyaline, distinctly narrow; Sc joins C at the origin of RS; RS leaves R at an 

 acute angle and straight. Vein R beyond origin of R4 + 5 and cross vein r 

 colorless. Base of anal style almost completely covered by the 9th sternite. 



Described from one male. (Monotype) 15 July 1920, Cran- 

 brook, B. C., 2950 ft. Lamplight. 



The males of the three species show other differences in the 

 construction of the hypopygium. Antennal segments 3 and 4 

 vary in size. A wing or all male types have been mounted on 

 slides. 



By the descriptions it would seem the three species are very 

 closely allied. The following comparisons will be helpful. In 

 sufusca, RS up to branch R 4 -f 5 is shorter than the last 

 part of M to the wing margin and is shorter than Cu 1, from the 

 basal deflection of Cu 1 to the wing margin. In kooteniensis 

 the RS part is longer and in intermedia the RS part is equal to 

 the M part but shorter than the Cul part. Suffusca has cell 

 1st R I deep; intermedia is medium depth, and kooteniensis 

 distinctly narrow. This key will separate the species. 



1. Sc joining C beyond origin of RS 



Sc joining C at or slightly before origin of RS 



'The figure illustrating Dicranomyia whartoni at the time of describing or on 

 plate 27, p. 476, 23d report State Ento. New York, shows Sc joining C about 

 one-third across the length of cell 1st R; the figure given by Dr. Alexander in 

 Crane Flies of New York, Plate 31, fig. 12, shows Sc joining C almost above the 

 origin of R, but beyond it. 



