Blattidae. 107 
Panchlora nivea (L.). 
Blaita nivea LINNAEUS, Syst. Nat. (ed. X), Vol. 1, p. 424 (1758). 
1 
St. Thomas, Loango. The species ranges over the greater part 
of the Neotropical region. 
Nauphoeta kükenthali n. sp. 
@. Green (white in alcohol). Vertex of head strongly exposed. 
Eyes rather wide apart. Antennae luteous. Pronotum sub-hexagonal, 
anteriorly sub-truncate, posteriorly very obtusely produced, sides 
sliehtly deflexed. Scutellum exposed. Tegmina exceeding the apex 
of the abdomen, mediastinal area cribrate-punctate, base of anal field 
seriate-punctate. Wings of equal length with tegmina, anterior 
part projecting considerably beyond posterior part, the outer margin 
notched at the junction of the two parts. Second abdominal tergite 
with a scent-gland opening, marked by two curved carinae diverging 
from a central papilla. Supra-anal lamina quadrate, its posterior 
margin faintly sinuate and triangularly notched in the middle. Sub- 
genital lJamina of the usual form in this genus, symmetrical, posterior 
angles outwardly and backwardly produced, posterior margin rounded, 
slightly thickened and faintly hirsute, styles slender, situated in 
lateral notches. Üerci moderate, none of the apical joints enlarged. 
0-1. 
1243370: 
Total length 43 mm; length of body 36 mm; length of tegmina 
34 mm; pronotum 9x13 mm. 12. 
Loango near St. Thomas. 
The unique specimen exhibits an interesting abnormality, the 
left posterior tarsus has only four joints, the third of which bears 
two pulvilli. 
The genus Nauphoeta has not been recorded hitherto from the 
New World with the exception of the cosmopolitan species N. cinerea 
Orıv. The distincetions between the genera Nauphoeta and Panchlora 
are not well-marked and have apparently not been recognised with 
sufficient accuracy. Characters based on the form of the pronotum 
are extremely unsatisfactory and are often only of value for purposes 
of diseriminating between species of the same genus, but taken in 
conjunction with other structural features they are of service. I 
have examined a good number of species of Panchlora and Nauphoeta 
and find that the genera can be discriminated as follows: 
8* 
Femora with the formula of the apical spines 
