10. Seta II of 8th abdominal segment directly in front of 
spiracle (A); seta I of 9th abdominal segment approximate 
to seta III, on same plate (B). Anal fork absent. 
ve -F- 
aah 
Z 
a 
a“ 
[xs 
B Cosmopterigidae p. 25 
Seta III of 8th abdominal segment not directly in front of spiracle 
(A and B) or, if so, anal fork present. Seta I of 9th abdominal 
segment not closely associated with seta III (C, D, andE)..... 11 
| [ 7} | AM [7 tH 
‘ : \ | | lees: 3 ‘i | Mey Atr / 4-III 
le == | ; 
won, lees ll “a | a 
0 _ | Yi \ 
0 = 
at = oil | 
A B Cc D E 
11. Submentum with a large oval pit (A); seta II of 8th abdominal segment 
above and slightly behind the spiracle (B). 
Blastobasidae p._ 29 
Submentum without an oval pit; or, if pit is present, seta III of 8th 
abdominal segment above and in front of spiracle (A)....... 12 
