164 ])r. MalcolilFlltirr’ s PrcUniinurij Jievlsion of the 
this is £J. parvulum, ])ohrn, the smallest known species, 
apparently confined to Ceylon. Brachypterous and mac- 
ropterons forms occur. In all other species known to me 
the antennal segments are quite cylindrical. 
Two species have the sides of the 7th-9th abdominal seg¬ 
ments in the male acute and carinulate; these are E.for- 
hcsi, Kirby, from Dinner Island, and E. distanti, Burr, 
from the Transvaal. In all other species known to me the 
sides of these segments are rounded or convex, but not 
acute nor carinulate. 
Three species, all Ethiopian, have the penultimate ven¬ 
tral segment of the male entire, that is, neither sinuate 
nor emarginate. E. wahlhergi, Dohrn, occurs in the African 
Continent; the female has a transverse pygidium, and the 
pronotum and wings are spotted. 
The other two, with the pygidium of the female narrow, 
are E. sehalavum, Borm., a small variegate<l species, and 
E. holivari, Rodz, a large black species with uniform 
tawny wings. Both are confined to Madagascar and 
the adjacent islands. 
The remaining species known to me all have the 
penultimate ventral segment of the male sinuate or 
emarginate. 
The pygidium of the female is transverse and the 
abdomen of the male almost parallel in E. afrum, Beauv., 
and E. horridum, Dohrn. The former Ethiopian, the 
latter a Javanese species. In the former the penulti¬ 
mate ventral segment of the male is gently sinuate, in 
the latter decidedly emarginate. 
The abundant Oriental E. sumatranum, Haan, with 
which I sink E. ivestermanni, Dohrn, as a mere colour- 
variant, has a narrow pygidium in the female and the 
abdomen of the male is moderately dilated about the 
middle: but the pygidium is truncate at the apex. It is 
either acute or blunt at the apex in E. Juscum, Bor., and 
E. insulanum, Karsch, neither of which are known to 
me. I have not yet been able to examine in both sexes 
authentic specimens of E. occidentale, Borm., from West 
Africa ; E. congotcnse, Bor., from the Congo ; E. yorkeoise, 
Dohrn, from Cape York, and E. concolor, Bor., from West 
Africa, but I hope before long to be able to compare them 
with the other forms. 
