CERESA, 105 
6. Ceresa variabilis, sp. n. 
Griseo-brunnea, vel griseo-testacea, vel rufo-testacea ; pronoto nitido, parcius tenuiter punctato, cornibus modicis, 
sat. obtusis, plus minusve recurvis, linea post humeros testaced semicirculari, nonnunquam deficiente, 
instructo ; tegminibus cum colore pronoti congruentibus, venis fuscis ; pedibus testaceis. 
Very variable, of a greyish-brown, quite dark colour, or greyish-testaceous, or rufo-testaceous; the pronotum 
shining, sparingly and shallowly punctured, with the horns, as a rule, rather blunt and but slightly 
recurved, but variable; tegmina lighter or darker, according to the colour of the pronotum, but with the 
veins in almost every case fuscous, 
Long. cum tegm. 8-9 millim. ; lat. int. corn. 4-5 millim. 
Hab. Panama, Bugaba, Volcan de Chiriqui 2500 to 4000 feet (Champion). 
Var. intermedia. 
Multo minor, pronoto interdum fere levi, interdum sat fortiter punctato, colore testaceo vel brunneo-testaceo. 
Much smaller than the ordinary form, with the pronotum sometimes almost smooth, and sometimes rather 
strongly and closely punctured ; colour brownish-testaceous or testaceous. 
Long. cum tegm. 6 millim. ; lat. int. corn. 33 millim. 
Hab. Panama, Volcan de Chiriqui 2500 to 4000 feet (Champion). 
The series which I have placed under this species has caused me more trouble than 
any other; it is quite possible that they may all be forms of C. vitudus, while on the 
other hand they might be described, if found separately, as half a dozen different 
species. The distinctly punctured specimens of the var. intermedia come exceedingly 
close to the var. minor of C. vitulus, whereas the larger rufescent forms are very nearly 
allied to C. uncicornis, which in facies is an entirely different insect from the last 
mentioned. The specimens from Bugaba are allied to C. rufescens, Butl., and the 
dark brownish specimens to C. drunnicornis (Germ.), but in either case they differ in 
important particulars, and are connected together by intermediate forms; moreover, 
they have nearly all been captured in one locality, and, to judge by the setting, at one 
particular time, as they are almost the only series in the group that are mounted on 
card. It appears therefore to be the best plan, in the present state of our knowledge, 
to leave them together, as the multiplication of species which are almost certainly 
not distinct has already caused considerable confusion. 
7. Ceresa testacea. 
Ceresa testacea, Fairm. Ann. Soc. Ent. Fr. sér, 2, iv. p. 284°. 
Ceresa patruelis, Stal, Stett. ent. Zeit. 1864, p. 69°. 
Ceresa stali, Butl. Cist. Ent. ii. p. 217, t. 3. fig. 11°. 
Hab. Mexico (coll. Signoret!; Mus. Brit.2; Boucard; Bilimek), Chilpancingo, 
Rincon, Xucumanatlan, and Omilteme in Guerrero, Cuernavaca in Morelos, Teapa in 
Tabasco (H. H. Smith), Orizaba (F. D. G. & H. H. 8.), Vera Cruz (Mus. Holm.?), 
Temax in North Yucatan (Gaumer); GuatemMata, La Tinta, Chiacam, and San Geré- 
nimo in Vera Paz (Champion); Costa Rica (Mus. Roy. Belg.) ; PANAMA, Volcan de 
Chiriqui, Caldera, David (Champion). 
BIOL. CENTR.-AMER., Rhynch. Homop., Vol. II., August 1895. *14 
