Genera of Wingless Brachyderine. 21 
which are grey; prothorax with a broad, dark brown, median 
stripe, a less distinct one on each side of it, and a narrower 
one on the inflexed sides ; elytra with the suture narrowly 
light Urowin, and with dark brown macular stripes covering 
striz 1, 2,5, and the base of 4. But some or all of these 
markings may be very nearly obliterated. 
Also very close structura ally to L. cana, but the eyes are 
decidedly more convex, and the central stria on the forehead 
is more concealed by the scaling; the rostrum is even 
shorter in proportion to its basal width, and the central 
carina is more raised at its base ; the sete on the head and 
rostrum are longer and distinctly raised, whereas in L. cana 
they lie quite flat; the sete on the pronotum and elytra are 
similarly longer and much more conspicuous; the prothorax 
has the basal margin narrowly carinate and less stronely 
rounded; the scutellum is smailer, being scarcely per- 
ceptible ; the elytra bear very shallow striz (of which there 
is no trace in the other two species), and when abraded the 
punctures appear appreciably larger and more closely set. 
Length 5-6 mm., breadth 3-34 mm. 
Oranee Free Stare: Paul Roux, 23. x. 1917 (M. G. 
Ferreira). 
Described from one male and four females ; received from 
the Division of Hntomology, Pretoria, with a record that the 
insects were injuring maize-plants. 
Genus PsruDOBLOSYRUS, Nov. 
Head twice as broad as long, trisculate, the eyes very 
prominent. Rostrum subquadrate, separated from the head 
by a deep sinuous furrow that reaches the sides, the lower 
surface with two deep longitudinal furrows and a transverse 
basal impression ; epistome well defined, the sides forming 
an obtuse ridge, rounded behind, the front margin deeply 
sinuate and shorter than one of the sides ; mandibles multi- 
setose and without scaling, with a (listinct median tooth and 
a sharp longitudinal carina running from the scar to the 
base ; mentum with the anterior part convex and bearing a 
fringe of sete, the posterior part flat and deeply sunk in 
its cavity; scrobes entirely lateral and quite invisible from 
above, very deep and gradually widening outwardly, the 
upper edge ending on a level with the lower margin of the 
eye. Antenne with the scape gradually clavate and reaching 
the middle of the eye; funicle squamose, the two basal joints 
