R. Shelford, New Blattidae. 125 
neous. Antennae testaceous. Pronotum as in JN. cinerea but the 
central lyrate marking differently arranged and dark castaneous. 
Tegmina as in JN. cinerea but just exceeding the apex of the ab- 
domen, radial vein not marked at base. Abdomen above testa- 
ceous speckled with castaneous, with lateral blotches of castaneous; 
supra-anal lamina sub-quadrately produced, posteriorly emarginate ; 
abdomen beneath testaceous with a broad castaneous band on 
each sternite except the last, where the band is replaced by a 
round spot; a lateral castaneous blotch on each sternite. Sub- 
genital lamina as in V. cinerea. Legs testaceous, formula of apical 
spines ¢, 4, 4. 
Total length 15,5 mm; length of body 15 mm; length of 
tegmina 11 mm; pronotum 5 mm >< 6 mm. 
1 9, Cameroons (L. Conradt). 
I have examined a good series of NW. cinerea from all parts 
of the world and find that the species is quite constant in the form of 
markings on the pronotum and in the colouration of the abdomen; 
the West African form has these markings dark castaneous instead 
of pale castaneous, but they correspond in shape and arrangement 
with the markings on the pronotum of forms from other parts of 
the world. I have therefore little hesitation in separating this 
small form as a distinct species. 
Nauphoeta bicolor n. sp. 
S. Head dark castaneous, nitid, ocelli and palpi testaceous. 
Eyes further apart than length of 1 antennal joint; antennae 
fuscous; vertex projecting beyond the anterior margin of the 
pronotum. Pronotum castaneous, sides deflexed, posteriorly 
scarcely angulate; two circular impressions on posterior half of 
disc and a few scattered punctures. Scutellum hidden. Tegmina 
testaceous scarcely extending beyond apex of abdomen, seriately 
punctate between the veins, radial veins piceous only at its 
extreme base. Wings suffused with castaneous. Abdomen casta- 
neous, the disc beneath rufescent; supra-anal lamina quadrately 
produced, posteriorly emarginate; sub-genital lamina as in the 
two preceding species. Cerci short, acuminate. Legs castaneous, 
formula of apical spines $, +, $, genicular spines very small, none 
on front femora. 
2 Similar, but tegmina not quite reaching apex of abdomen; 
no impressions on disc of pronotum; supra-anal lamina more 
deeply emarginate. 
S Total length 27 mm; length of body 24 mm; length of 
teomina 18,8 mm; pronotum 7 mm >< 10 mm. 
