636 L. Bruner: 
Acrotylus aberrans n. sp. 
Probably most nearly related to A. apricarius Stäl, but considerably smaller and with the hind 
tibiae coralline instead of plumbeous or ceinereous. Wings for the most part strongly infuscated, without 
transverse band and only a trifle flavescent at base posteriorly. 
Head of moderate size, about as wide as the front edge of the pronotum, the front provided above 
the antennae with a transverse fuscous band between and continued over the lower half of the eyes, across 
the head and front lobe of the pronotum at the back edge of which they meet and continuing cover all of 
the disk of the hind lobe. There is also a transverse narrow, fuscous band on the vertex connecting and 
passing onto the eyes for a little distance at their upper extremity; oceiput and the intervening triangular 
space on the disk of the anterior lobe of the pronotum brunneo-testaceous, under side pallid. Face, cheeks 
sides of pronotum, pleura, hind femora and anterior and middle legs testaceo-ferruginous. Disk of anterior 
lobe of pronotum with the usual eye-like raised pallid spots. Hind tibiae reddish, basally pale annulate, 
the apex and immediate base infuscated, knees infuscated. Tegmina more or less strongly brunneous, along 
costal margin dimly trifasciate, the apical half without spurious veins between the branches of the radial 
veins. Antennae about as long as the head and pronotum combined, moderately heavy. 
Length of body, d, 11 mm, of pronotum, 2,55 mm, of tegmina, 12 mm, of hind femora, 8 mm. 
Habitat: The single male specimen at hand comes from Andranohinaly (SW. Madagascar) 
where it was taken during February, 1904. It also bears the label Waldgebiet. Prof. Voeltzkow collector. 
This is the smallest species of the genus thus far reported. 
Conipoda calcarata Saussure. 
©. calcarata Sauss. is represented by a large series of both nymphs and mature inseets. They 
were taken at various Madagascaren localities but chiefly at Tulear in SW. Madagascar and at Tamatave 
in the Ile aux Prunes (E. Madagascar). 
This locust, like several North American species, is evidently confined to the sandy sea shore where 
its color affords it ample protection from bird and other enemies. 
Family Caloptenidae (Acridiidae). 
Gymnohippus n. gen. 
This genus is a member of the group Ixalidii and approaches Karsch’s Gymnidium in most of 
its characters. But in the terminal segment of the male abdomen there is much difference. In Gymnidium 
the last ventral segment is elongate, while in the members of the present genus it is short and blunt while 
the cerci are heavy at the base, quite long, and have the apical half slender. The supra-anal plate is 
small, triangular and scarcely one half as long as the cerci. The body is apterous and lacks the tympani 
and is uniformly coarsely granular instead of punctulate as in Gymnidium. The prosternal tuberele is 
coarse, short and very obtuse. Antennae somewhat incrassate, composed of 13 or 14 segments and about 
as long (3) or a little shorter than (9) the head and pronotum combined, located in pits very close to the 
fästigium just in advance of the moderately prominent, oblique, elongate-oval eyes. Vertex of moderate 
width, the fastigium horizontal or gently ascending the margins raised and separated from the granular 
disk by a depression or line which follows the margin; frontal costa narrow and produced between the 
antennae, below a little wider, low, narrowly sulcate and continued to the clypeus, the marginal carinae 
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