
Acridoidea from Madagascar, Comoro Islands and Eastern Africa. 629 
slightly surpassing the apex of the mesonotum, in the female present only as a minute lobe projecting 
beyond the hind margin of pronotum. 
Length of body, d, 16 mm, 9, 25 mm; of pronotum, d, 2,35 mm, 9, 5,1 mm; of hind femora, d, 
9 mm, 9, 12,5 mm. | 
Habitat: 19 and 2 dS collected by Prof. Voeltzkow and bearing the label Anjouan (Comoren) 
Cercle de Bombao, 500 m. 
The female is much more robust in form than the males and has the body somewhat compressed, 
especially about the thorax. The lateral lobes of the pronotum are conspicuously higher than long with 
the lower margin oblique and the lower posterior angle somewhat acute. The hind tibiae provided with 
an external apical spine, which together with the others makes the number in this row 8—10, inter- 
naliy 9—11. 
Geloius nasutus Saussure. 
There is a single female specimen of this odd looking locust before me as I write. It was col- 
lected by Prof. Voeltzkow during January, 1904, at Tulear (SW. Madagaskar). Unfortunately it was 
preserved in spirits and has lost some of its natural color and form. 
Geloius decorsei Bolivar. 
A female of a second species of the genus Geloius was captured in February of the same year. 
It bears the label Andranohinaly (SW. Madagaskar) Waldgebiet, February 1904, Voeltzkow. It 
is much slenderer and has shorter and lighter antennae than nasutus. 
Family Pamphagidae. 
Pamphagella n. gen. 
The members of the present genus are unusually small for representatives of this family and have 
the general appearance of Oedipodine insects with greatly abbreviated tegmina and wings in both sexes 
of the type species at least. The genus falls next to Tropidauchen in the synoptie table as published by 
Saussure, but is very different from it in a number of respects. 
Body quite strongly compressed, subapterous, the tegmina about as wide as long, not over- 
lapping above. The size small with considerable disparity between the sexes, the males being scarcely 
one-half the size of the females. Head rather small, subelliptical, the vertex of moderate width, gently 
declivent, the scutum of which is elongate and slightly sulcate; frontal costa not at all prominent but 
continuous to the clypeus and provided with well defined lateral carinae. Antennae 14-jointed, the segments 
more or less flattened, the apical portion in the male somewhat clavate. Eyes moderately robust, about 
as long (9) or a little longer (S) than that portion of the cheeks below them; ocelli small, not prominent, 
located slightly above the middle of the anterior edge of the eyes. Oceiput strongly rugulose. Pronotum 
rugoso-granulose, in the female lamellately and arcuately smoothly carinated; in the male lower, straight 
and roughly carinated, linearly intersected by all three transverse sulci; anteriorly and posteriorly angulate. 
Prosternum transversely ridged; the meso- and metasternal lobes separated by a space much wider than 
long. Posterior femora rather robust, the upper carina fairly prominent and somewhat, but not strongly, 
