TETHLIMMENA.—CALLICHROMA. 45 
TETHLIMMENA. 
Tethliimmena, Bates, Trans. Ent. Soc. 1872, p. 185. 
One species only is known of this curious genus of small Cerambycide, the nearest 
allies of which appear to be Pyrocalymma, an Indian, and Chaodalis, an Australian form. 
1. Tethlimmena aliena. © (Tab. V. fig. 1.) 
Tethlimmena aliena, Bates, loc. cit. p. 185. 
Hab. Nicaraava, Chontales (Belt). 
CALLICHROMA. 
Callichroma, Latreille, Régne Anim. ed. 1, ii. p. 841; Serville, Ann. Soc. Ent. Fr. 1833, p. 557 ; 
Lacordaire, Gen. Col. ix. p. 15. 
As restricted by Serville and Lacordaire this fine genus includes only American and 
African species. In all the hind femora are linear and simple, ¢. e. free from notch or 
prominence beneath. The only definite character which I can discover separating it 
from the Europeo-Asiatic Aromia (which includes the common musk-beetle of the 
British Islands) is the clavate and pedunculate middle femora. The numerous group 
Chloridolum, abundant in Tropical Asia and its islands, approaches it in this respect ; 
but Chloridolum is marked off as a distinct group by the more slender form of the 
species and the proportions of the second and third antennal joints, the two being about 
equal in length, whilst in Callichroma the third is constantly the longer. About fifty 
species are known, twenty of which are West- and South-African. 
The American species are sometimes found very abundantly on flowers. 
1. Callichroma plicata. 
Callichroma plicatum, Leconte, Proc. Ac. Phil. vi. 1853, p. 233. 
Hab. North America, Texas !.—Mexico, Sonora. 
A specimen which I received some years ago in a collection from Sonora is larger 
than the Texan example I have seen. ' 
2. Callichroma xanthogastra. (Tab. V. fig. 11.) 
Callichroma columbinum, Bates, Trans. Ent. Soc. 1872, p. 186 (nec Guérin). 
Viridi-aurata, subtiliter velutina, abdomine femoribusque rufis, antennis, tibiis et tarsis nigris; capite subcon-. 
fluenter punctato; thorace disco haud striato, subtiliter punctulato, subnitido; elytris alutaceis unicolo- 
ribus; tibiis posticis minus quam in C. holochlora dilatato-compressis. 
Long. 13 lin. 9. 
Hab. Nicaracua, Chontales (Belt). 
Similar in colour but less brilliant than C. plicata, and disk of thorax free from the 
strong transverse ridges which exist in that species. The elytra are sculptured and 
clothed nearly as in C. sapphira and C. holochlora, differing from both in their golden- 
green colour. Mr. Belt.obtained only one example, which was entered in the “ Longicorn 
Coleoptera from Chontales” as C. columbinum, Guér., from which it is certainly distinct. 
