200 
Psyche 
[September 
Figs. 10-14. Male genitalia of A gmoblatta and lsoldaia (All drawn 
from KOH preparations) 
10. A gmoblatta thaxteri (Hebard). Male from Natick culture originating 
in Buenos Aires, Argentina. Dorsal view of phallomeres. 
11-14. lsoldaia insularis (R. S. Albuquerque and Gurney), male holotype. 
11. Dorsal view of phallomeres. 12. Ventrolateral view of apical portion 
of subgenital plate. 13. Ventral view of paraprocts and associated struc- 
tures. 14. Ventral view of subgenital plate. 
Abbreviations: LI = 1st sclerite of left phallomere; L2 “ second dorsal 
sclerite of left phallomere; other abbreviations as in figs. 1-9. 
dea have this type of spermatheca. She believes that the branched 
spermatheca is a primitive condition. The many branched spermatheca 
in Loboptera dicipiens is unique for the Blattellidae and may repre- 
sent a relic character. Lobopterella dimidiatipes has 2 pairs of 
spermathecae (McKittrick, 1964, p. 153). 
The ootheca (Fig. 17) of A. thaxteri has a deep groove ventrally 
