40 Mr. R. Shelford on some 
castaneous marking like an inverted W on the disk, a central 
testaceous line. Tegmina abbreviated, not extending much 
beyond the second abdominal tergite, surface reticulate, anal 
vein reaching internal posterior angle of tegmina. Wings 
rudimentary. The first and second abdominal tergites flavo- 
testaceous, third to fifth flavo-testaceous with castaneous 
lateral and posterior borders; sixth rufo-castaneous, enlarged ; 
seventh flavo-testaceous with central castaneous macula, 
narrow, posterior margin sinuate and slightly emarginate in 
the middle; supra-anal lamina quadrate, broadly emarginate, 
rufo-castaneous with a testaceous macula at the postero- 
lateral angles. Cerci black, apices rufo-castaneous. Abdo- 
men beneath rufo-castaneous, lateral margins castaneous and 
a castaneous stigma on second to fourth sternites; sub- 
genital lamina notched on each side, the long slender styles 
springing from the notches. Legs rufo-castaneous. Meta- 
tarsus scarcely equal to remaining joints, spined beneath, 
its pulvillus minute. 
?. Head black; ocelli, clypeus, gene, vertex flavo- 
testaceous ; antennz rufo-castaneous. Pronotum as in dg, 
but the discal black marking much enlarged, so that it 
occupies all the disk, leaving only a narrow sinuate flavo- 
testaceous margin, no central testaceous line. Tegmina 
squamiform, not extending beyond metanotum, black, with 
a yellow line at base ; mesonotum, metanotum, and first five 
abdominal tergites black, with a broad central transverse 
flavo-testaceous band; sixth tergite enlarged, concavely 
depressed, black with flavo-testaceous lateral and posterior 
margins; seventh tergite somewhat triangularly produced, 
black, apex slightly emarginate, flavo-testaceous ; supra-anal 
lamina produced, narrower than in 4, broadly emarginate. 
Abdomen beneath and legs black, disk of abdomen rufo- 
castaneous; coxee margined outwardly with flavo-testaceous, 
tibial spines and tarsi castaneous. 
$. Total length 21 mm.; length of tegmina 10 mm. ; 
pronotum 5°8 mm. xX 7°2 mm. 
2. Total length 26 mm.; length of tegmina 4 mm.; 
pronotum 8 mm. x 10 mm. 
South of Lake Rudolph, Brit. E. Africa (Maurice de 
Rothschild, 1905) ; five examples (Paris Museum). 
The nearest ally of the species appears to be B. manca, 
Gerst., from W. Africa. 
