NO. 3569 SOLDIER FLY LARVAE — McFADDEN 39 



Subgenus Catasina Enderlein, 1914 



Odontomyia (Catasina) pubescens (Day), 1882 



Figures 86, 89, 90 



Description. — Puparium: length 13.8-17.0 mm, mean 15.80 mm; 

 width 2.7-3.6 mm, mean 3.1 mm; other characters as given in key to 

 genera. 



Biology. — Larvae of this species have been collected from moss- 

 covered logs (in boggy areas), from under stones at water's edge, and 

 from the margins of marshy areas. 



Material examined. — Alberta: Beaverhills Lake near Tofield, 

 May 21, 1960, G. E. Ball, 1 puparium, MWM; Flatbush, May 12, 

 1960, M. W. McFadden, 1 larva, 1 puparium, MWM; Bilberry Lake, 

 54°34'30" N lat., 110°60'45" W long., June 5, 1960, Ball, Madge, and 

 McFadden, 1 puparium, MWM. Saskatchewan: Saskatoon, May 

 15, 1949, A. R. Brooks, 1 puparium, CNC. 



Subgenus Odontomyiina Enderlein, 1930 



Odontomyia (Odontomyiina) virgo (Wiedemann), 1830 



Figures 98, 102 



Description. — Puparium: length 15 mm (less head and prothorax) ; 

 width 3.50 mm; 4 white vittae on dorsal surface of body segments, 

 inner 2 narrow; penultimate segment half as long as apical segment; 

 other characters as given in key to genera. 



Biology.- — Larvae of this species were collected from shore debris at 

 the edge of a small pond. 



Material examined. — Alberta: 4 miles north of Devon, May 

 10, 1961, M. W. McFadden, 1 puparium, 1 early instar larva, MWM. 



Subgenus Odontomyia Meigen, 1803 

 Key to Species of Odontomyia Meigen 



1. Venter of sixth and seventh abdominal segments with multiple hooks. 



occidentalis James 

 Venter of sixth and seventh abdominal segments with a single pair of hooks . 2 



2. Dorsum with 2 broad vittae extending length of body but dividing into 4 



vittae on apical segment cincta Olivier 



Vittae in different pattern; body segments with fine white pubescence. 



communis James 



