632 L. Bruner: 
sides gently divergent and continuous to the clypeus, punctate, in the female plane, in the male shallowly 
sulcate below the antennae; the latter about as long (9) or a little longer than (3) the head and pronotum 
taken together, the joints basally very gently depressed. Pronotum with the lateral carinae as described 
above; the posterior edge angulate, with the apex a little rounded. Tegmina and wings surpassing both 
the tip of the abdomen and the apex of the hind femora in the two sexes, a well defined intercalary vein 
present. Hind femora normal, the outer edge of hind tibiae with 11—12 spines. Metasternal lobes back 
of the foveola not contiguous. 
General color flavo-testaceous or brunneo-testaceous, varied on the sides and disk of pronotum 
with streaks of black; the tegmina with a discal series of pallid spots and on the apical half irregularly 
conspersed with brown. Hind tibiae as described for linea-alba and varians. 
Length of body, d, 14 mm, 9, 21 mm; of pronotum, d, 2,75 mm, 9, 4 mm; oftegmina, d, 11,5 mm, 
9, 16 mm; of hind femora, d, 9 mm, 9, 13 mm. 
Habitat: Tamatave (E. Madagaskar), Ile aux Prunes, and Gr. Comoro, several specimens of 
both sexes. 
This species, like several of the described forms, is no doubt quite variable as to color, and per- 
haps in size as well. 
Gymnobothrus variabilis n. sp. Fig. 11. 
Of about the same size and general appearance as @. madacassıs and varians, but differing from 
both of these in the form of the lateral carinae of the pronotum as indicated in the synoptical table of the 
species of the genus. 
Head normal, the face rather strongly retreating, viewed in profile nearly straight; fastigium of 
the vertex gently depressed, in the male a trifle longer than wide and in the female a little wider than 
long, the sulcation moderately profound; lateral foveolae partially visible from above, variable as to their 
prominence, in some specimens quite well defined, elongate, arcuate, in others represented by a cluster of 
profound punctuations. Frontal costa prominent, quite wide and evenly divergent to the clypeus, gently 
sulcate at middle, punetulate above. Antennae filiform, once and a half (3) or only a trifle longer (9) than 
the head and pronotum together. Pronotum gently compressed at middle, the anterior lobe a very little 
shorter than the posterior one, the lateral carinae very faintly arcuate or nearly parallel on the anterior 
lobe, in some specimens partially obliterated between the transverse sulci the posterior one of which is 
quite profound. Tegmina of moderate width, passing the tip of abdomen and femora in both sexes, the 
mediastinal area provided with a well-defined intercalary vein and regular eross-veins. Hind femora normal, 
the tibiae 10—11 spined on their outer margin. 
General color testaceo-ferrugineous to brunneous varied with fuscous mottlings on tegmina, wings 
faintly hyaline to gently fuscous, darkest apically. Tegmina of some specimens with a well defined sub- 
costal pallid line while others show a wide dorsal pallid stripe that reaches from the fastigium nearly to 
the tip of the closed tegmina. Hind femora with the genicular area infuscated, the tibiae dusky with a 
subbasal pale annulus. Face, lower portion of cheeks, lower sides pronotum and under side pallid. 
| Length of body, d, 16—17 mm, 9, 22--23 mm; of pronotum, d, 3,1 mm, 9, 3,75 mm; of tegmina, 
go, 14 mm, 9, 13 mm; of hind femora, S, 11 mm, 9, 14 mm. 
Habitat: This insect is represented by a large series of both sexes and comes from various Mada- 
gascaren localities and the adjoining islands, as well as from the main land. 
It is exceedingly variable in color as well as somewhat so in size. 


