114 
Psyche 
[June- Sept. 
Wings with Sc longer, Sc2 ending beyond midlength of 
cell R1 and nearly opposite three fourths the length 
of Rs. carpenteri sp. n. 
2. A conspicuous darkened cloud at origin of Rs. 3 
No darkened cloud at origin of Rs. 4 
3. Rs unusually long, approximately twice m-cu; wings 
broad, about 3.5 times as long as wide, tartari Scudder 
Rs of moderate length, approximately one and one half 
times as long as m-cu ; wings narrower, approximately 
four times as long as wide. limi Scudder 
4. A conspicuous dark cloud at near midlength of vein Cu, 
extending caudad into cell Cu; abdominal pattern of 
individual tergites transverse; size large (wing, female, 
23 mm.) . maclurei Scudder 
No dark cloud at midlength of vein Cu; abdominal 
pattern of the individual tergites longitudinal; size 
medium (wing, female, to 17.5 mm.). 
Carolina Scudder 
Tipula spp. 
In addition to the material previously discussed, the 
Creede collections included seven specimens that appear to 
represent one or more additional species. These belong to 
the group with wings immaculate or virtually so and no 
attempt can be made to make a more detailed identification. 
The specimens included bear the numbers 4496. 
Family Bibionidae 
By Maurice T. James 
Colorado State College 
Plecia creedensis James, n. sp. (Fig. 2) 
This species differs from the Florissant species and from 
those described by Handlirsch from the Canadian Tertiary 
in that vein R2-\-3 arises from the radial sector a consider- 
able distance before the apex of Rl, is strongly and distinctly 
elbowed at its origin, and runs almost parallel to Rl for a 
considerable distance. 
