

Acridoidea from Madagascar, Comoro Islands and Eastern Africa. 627 
Length of body, 9, 22,5 mm, of pronotum, 2,1 mm, of hind femora, 12,5 mm. 
Habitat: The collection contains a single poorly preserved female specimen bearing. the label 
Anjouan (Comoren) cercle de Bombao, 500 m. It was collected in formaldehyde by Dr. Voeltzkow. 
Symbellia pallidafrons n. sp. Fig. 6. 
Very similar to S. karsht Burr in. size and general structure, but differing from that insect in 
being of a somewhat different color, as well as in having all three of the upper carinae of the hind femora 
minutely toothed or spined, the spines numbering five to eight to each carina. Hind tibiae 14-spined 
externally, 15-spined internally. Tip of male abdomen clavate, the subgenital plate very complicated; the 
supra-anal plate also complicate-black-margined, the preceding segment produced in the middle into a long, 
narrow process that is furcate at apex; cerci hirsute, slender, elongate, gently curved inwards, their apex 
obtuse; sides immediately in advance of and below the base of cerci provided with a black-margined plaque- 
like projection from one of the segments; and just back of and between the cerci are a pair of raised 
black lunules, and still back of these two anteriorly directed rather slender black spines. The apex of 
the hind femora are infuscated. 
Length of body, d, 11,25 mm, of pronotum, 1,85 mm, of hind femora, 8 mm. 
Habitat: A single male from Gr. Comoro, where it was collected by Voeltzkow. It was 
preserved in spirits. 
Euschmidtia sakalava Saussure. 
The collection made at Sainte Marie, Madagascar, during August, 1904 contains a single alcoholic 
specimen of this genus of locusts that is placed as E. sakalava Saussure with some doubt. It is very 
close to the next. 
Euschmidtia parvipennis Saussure. 
Also from Sainte Marie and collected during August, 1904, by Voeltzkow, a single 9 specimen, 
but pinned and in better condition for determination than the preceding. 
Usually so few specimens of this family of locusts are collected that but little is known concerning 
their abundance, variation and distribution. The present collection, while rather extensive as a whole, 
contains but a half dozen Eumastaciens which apparently represent that many distinet species. 
® 
Family Pyrgomorphidae. 
Chrotogonus hemipterus Schaum. 
The material studied contains a pair of this species which are almost typical. The 9 comes from 
North Pemba, British East Africa, where it was taken in March, 1903, and the d was obtained on the 
Isle of Lamu, British East Africa. They were collected by Professor Voeltzkow. 
Phymateus cardinalis Bolivar. 
Five mature specimens and several nymphs of this large and attractive locust were taken in south- 
western Madagascar. They come from Tulear. 
