MEMBR ACID JE. 
129 
horn, dark fuscous at the tip; the posterior apex black; the hind tibiae finely 
hirsute. The male appears to have a shorter pronotal horn than the female, and may 
prove to be identical with A. concolor ot Walker, and as such it is included here as a 
synonym. 
Size, 13 x 7 mm. 
Habitat. —Guatemala, Costa iiica, Panama. 
ACONOPHORA MARGINATA, ? . 
(Plate XXVII. figs. 4, 4a.) 
Larger than A. marginata with the pronotum reaching nearly to the tips ot 
the tegmina; the limbus to the tegmina does not appear to be so much developed as 
in the male, and the colour of the insect is more sombre. 
The procephalic horn viewed from the front is thin and sharp, and the lower edge 
of the metopidium is indented above the frons. 
Size, 14 x 8 mm. 
Habitat. —Mexico, Brazil. 
ACONOPHORA LATICORNIS, &. 
(Plate XXVII. fig. 5.) 
Walk. l.c. Suppt. p. 134 (1858); Fowl. l.c. p. (15. 
Colour ochreous, with fine ferruginous mottlings; the procephalic horn more 
fuscous, with a central dark stain, from the rounded blunt apex to the shoulders ; 
tegmina brownish hyaline, with marked warm brown neuration; wings pale grey; 
legs ferruginous with a red streak passing down the tibiae ; the last pair of which 
lias a few black hind spurs. 
The pronotum by the back view is trapezoidal in form, and shows the horn thin 
and pointed at the tip. 
The female has a much longer pronotal horn. 
ACONOPHORA LATICORNIS, ?. 
(Plate XXVII. fig. 6.) 
Walk. l.c. Suppt. p. 134; Fowl. l.c. p. 65. 
As the female has not the broad horn shown by the male insect, the name given 
by Walker is not very appropriate to both sexes. The female pronotal horn is very 
long, slender, and dark coloured. 
The insect occurs somewhat commonly at Omilteme and parts of Mexico. In 
Guatemala it is found at heights of elevation from four thousand to upwards of ten 
thousand feet. 
