124 HEMIPTERA-HOMOPTERA. 
example in Signoret’s collection is rightly determined, although some ot the specimens 
certainly appear to run into extreme forms of P. dorsalis. The coste on the pronotum 
are very variable, some specimens having four on each side besides the dorsal costa, 
others three and an abbreviated one, while one (which, perhaps, belongs to a different 
species) has three only, and another has three and an attenuated one on each side 
and three and two abbreviated coste on the other. 
All the specimens examined are females. One from San Juan is figured. 
2. Polyglypta dorsalis. (Tab. VIII. figg. 5, 5a, 6, var.) 
Polyglypta dorsalis, Burm. Rev. Ent. Silb. iv. p. 1787. 
Polyglypta sicula, Am. et Serv. Hist. Nat. des Ins., Hém. p. 541 °. 
3. Polyglypta pallipes, Burm. Rev. Ent. Silb. iv. p. 179°. 
3. Polyglypta nigella, Fairm. Ann. Soc. Ent. Fr. sér. 2, iv. p. 298°. 
Polyglypta fusca, Butl. Cist. Ent. ii. p. 208, t. 3. fig. 3°. 
Polyglypta hordeacea, Buti. loc. cit. p. 209, t. 3. fig. 4°. 
Hab. Mexico12345 (Sallé), Amula, Chilpancingo, and Tepetlapa in Guerrero, 
Cuernavaca in Morelos, Fortin in Vera Cruz (H. H. Smith), Orizaba (IP. D.G. & H. H.S8.); 
British Honpuras, R. Sarstoon (Blancaneaux); GuateMALa (Sallé), Chiacam, Sabo, 
San Joaquin and San Gerénimo in Vera’ Paz, Mirandilla, Capetillo (Champion); Costa 
Rica (Van Patten).—Amazons, Para ®. 
This is an extremely variable species, both in size and colour. The ordinary form is 
testaceous, with the back broadly dark, sometimes almost black, sometimes reddish ; in 
a few specimens the ground-colour is greenish. The dark colour has a tendency to 
spread, and some specimens are almost entirely of a reddish-fulvous colour (P. fusca, 
Butl., is apparently one of these), while the variety of the male usually known as 
P. pallipes is almost entirely of a deep black colour. 
I have excluded the larger forms which are by some authors referred to this species, 
and the difference of size is by this reduced, so that the specimens range from 9 millim. 
to 12 millim., and are narrower or broader in proportion. I am by no means sure, 
however, whether P. maculata, Fairm., and P. tricolor, Butl., ought not to be referred 
to this species. ‘The males of the species described below as P. dispar are also inter- 
mediate forms, but the females appear to be quite distinct. Apart from the other 
differences of the specimens inter se the punctuation is also variable; there are, for 
instance, two typical specimens of P. dorsalis in our collection from the same locality 
and mounted on the same card, and both females, of which one is comparatively finely 
and the other coarsely punctured. 
A specimen of a variety from Chilpancingo is figured. 
