250 
Psyche 
[September 
Fig. 1. Chromosomes (mitotic metaphase) from the testes of a male 
nymph of Galiblatta williamsi sp. nov. (2n — 27). 
the left one is smaller than the right. It is probable that the left 
styles in Hebard’s 2 specimens were broken off; under high magni- 
fication a small rough-edged stump represents the point of attach- 
ment of the left style in the type specimen of cribrosa (Fig. 1 1 , 
arrow ) . 
The coriaceous punctulate tegmina of williamsi are shown in 
Fig. 6. The wings of the 2 species differ in that cribrosa (Fig. 9) 
has 3 complete and 2 incomplete branches of the ulnar vein, running 
somewhat obliquely posteriorly. In williamsi (Fig. 8) there are 
apparently only 2 complete and about 3 incomplete branches of the 
ulnar vein; the basal third of one of the complete branches is oblique 
but then runs longitudinally to the wing margin. 
The adult male of williamsi is darker in tone than cribrosa. The 
adult males of both species of Galiblatta lack tergal glands. The 
male nymph (Fig. 7) shows the faint meso-lateral abdominal mark- 
ings present in the female. 
Female, Allotype: The most striking differences between the 
females of G. williamsi and G. cribrosa are found in the tegmina, 
and shape of the thorax. The whole anterior half (tegmina and 
pronotum) of cribrosa (Fig. 5) is more strongly tapered and convex 
