1973] 
Roth — Blattaria 
3 2 
In Perisphaeria 2 species groups can be distinguished based on the 
R 2 : 
Species Group i. R 2 with a distinct, deep, subapical incision 
(Fig. 23). P. stylifera (Figs. 7-8, 28-33), P- aspera (Figs. 9, 34- 
36); these 2 species also have very similar shaped L 2 d’s (Figs. 28, 
34) ; P. ruficornis (Figs. 6, 22-24). 
Species Group 2. R2 without a subapical incision, or, if present, 
weakly represented. P. virescens (Figs. 2, 10-12) has a slight in- 
cision in the middle of the hook (Fig. 11) and its L 2 d lacks any 
extension (Fig. 10). P. scahra (Figs. 3, 13-18) and P. saxicola 
(Figs. 9, 19-21) lack incisions in their R 2 ’s (Figs. 14, 17, 20) ; both 
species have smooth outgrowths arising from the right side of the 
spicular L 2 d (Figs. 13, 16, 19). 
In Hostilia (Figs. 42-44, 51-58) the lower margin and left side 
of L 2 d is spicular and a smooth hook-like extension arises from the 
upper right corner (Figs. 51, 54 , 57 ). R2 has a shallow subapical 
incision (Figs. 52, 55). 
In Pilema (Figs. 39-41, 59-70), the outer margin of R2 is rela- 
tively straight. Three species, cribrosa , dentata, and thoracica have 
deep subapical incisions (Figs. 60, 63, 66), whereas reflexa (Fig. 69) 
has a relatively shallow one. Thoracica and reflexa have smooth 
outgrowths from the right side of L 2 d (Figs. 65, 68), which appear 
to be lacking or weakly indicated in cribrosa and dentata (Figs. 59, 
62). 
In Blepharodera (Figs. 45-47, 71-79) the spicules on L 2 d are 
very minute; the L 2 d outgrowth is broad in P. discoidalis (Fig. 71) 
and much narrower in B. ciliata (Figs. 74, 77). R2 of discoidalis 
has a minute lobe at about the middle of the hook (Fig. 72), whereas 
in ciliata there is no subapical incision (Figs. 75, 78). 
Tribal Group II. Part of the L 2 d surface on the left is reticulate 
(not spicular) (e.g. Figs. 80, 121), but otherwise very similar to 
Group I having a lateral extension on the right: Bantua (Figs. 48- 
50, 80-94) and Cyrtotria (Figs. 19-21, 94-144). 
All of the 5 species of Bantua examined have R 2 ’s with deep sub- 
apical incisions that extend almost to the middle of the curved part 
of the hook (Figs. 81, 84, 87, 90, 93). Their L 2 d’s are also basi- 
cally similar in having a smooth extension on the right side arising 
from the reticulate portion of the sclerite (Figs. 80, 83, 86, 89, 92). 
Cyrtotria is very close to Bantua as evidenced by the similarity of 
the L 2 d’s of some of the species. There are 2 groups of Cyrtotria 
based on the presence or absence of a subapical incision: 
Species Group 1. Subapical incision on R2 absent. C. pallicornis 
(Figs. 108, 109-m), C. inarshalli (Figs. 106, 107, 121-126), C. 
latipennis (Figs. 1, 3, 7, 101, 136-144). 
