PHILIP A. MUNZ 49 



12 (i i). Stignui narrower, usually three or more limes as long as wide 13 



13 (14). Wings raised, when at rest. Inner end of quadrangle only one-fifth as 

 long as the inferior side. The jirothorax with three scallops posteriorly, the mid- 

 dle one of which is the longest. Europe to Madagascar, New Guinea, and Xew 

 Caledonia. (Fig. 42.) Sympycna Charpentier, 1840 



14 (13). WingsheldhorizontalK, when at rest. The prothorax not as above 15 



15 (16). The sectors of the arculus arising toward the middle, M.4 about one-half of 

 the way down; hence the cjuadrangle is narrow with the inner end between one- 

 fourth and one-fifth as wide as the inferior side is long. The quadrangle in the 

 hind wing has a distinctly longer upper side than does that of the fore wing. 

 The upper and lower sides are almost parallel. A genus from Australia and sur- 

 rounding islands. (Fig. 43.) Austrolestes Tillyard, 1913 



16 (15). The sectors of the arculus arising nearer its upper end, M4 about one-third 

 of the way dow-n, hence the inner end of the quadrangle is from one-third to 

 one-fourth of the length of the inferior side. The quadrangle of the front and 

 hind wings essentially alike and triangular in shape because of the narrow- . 

 ing distally. Cosmopolitan, except not in Australia. (Fig. 44.) 



Lestes Leach, 181 5 



Key to the Subjamily Lestoidinae 



I. One genus only; the characters those of the subfamily. Australia. (Fig. 45.) 



Lestoidea Tillyard, 1913 



Key to the Genera of the Subfamily Pseiidostigmatinae 



1 (6). Secondary sectors numerous; two or more rows of cells between Mia and M2 

 for some distance. M1+2 forking at more than one-half of the distance from the 

 subnodus to the tip of the wing. Cu2 short, ending at the level of less than one- 

 half the distance from the fork of M1+2 to the tip of the wing. Cu-j with many 

 forks ; several to man>- cells between Cu2 and the posterior wing margin 2 



2 (5)- Quadrangle not crossed; about five times as long as wide. No cross-vein in 

 the subquadrangle. MA before the level of the subnodus. Mi+o forking be- 

 yond the half-way point between the subnodus and the tip of the wing 3 



3 (4). The nodus at one-sixth of the wing length; M2 arched forward under the 

 stigma so as to make a sharp bend. M3 forks under the inner end of the stig- 

 matic area, at about fifteen cells from the margin of the wing; Cui forks many 

 cells from the wing-margin. Mexico to Guatemala. (Fig. 46.) 



Megaloprepus Rambur, 1842 



4 (3). The nodus at one-fifth of the wing length; M2 not so strongly arched. Mj 

 forks about five cells from the wing margin or not at all. Cui forks about five 

 cells from the wing margin. Colombia to Braziland Ecuador. (Fig. 47.) 



Microstigma Rambur, 1842 



5 (2). The cjuadrangle with tw'O or three cross-veins, several in the subquadrangle, 

 some of which line up with those in the quadrangle. MA in the hind-wing es- 

 pecially, is at the level of the subnodus. M1+2 forking at about half wa\- between 

 the subnodus and the wing tip. Peru and Ecuador. (Fig. 48.) 



Anomisma .McLachlan, 1877 



MEM. .\M. ENT. SOC, 3. 



