32 
Mr. C. J. Galian on new 
* Elaphidion mutatum , sp. n. 
Elaphidion tomentosum J , Clievr. 
Castaneum, pube grisea dense obtectum, prothorace dorso quinque 
tuberculis — tuberculo medio cariniformi, tuberculis duobns posticis 
obsoletis ; elytris basi dense punctatis, punctis pone medium 
evanescentibus, singulis elytris humero et plaga dorsali prope 
medium subnudis, castaneis, apicibus singulis bispinosis ; antennis 
articulis 3° et 4° uni-, 5°-10 m bispinosis. 
Hob. Cuba, Florida. 
Under the name Elaphidion tomentosum Chevrolat included 
two very distinct species. The females which he has described 
are the females of the present species, the male of which I 
saw in the possession of Dr. Horn when he w T as last on 
a visit to England. Two female specimens from St. Dom- 
ingo, which are undoubtedly the females of E. tomentosum , 
are in the British Museum collection. Except in the much 
shorter antennae these two present no differences of import- 
ance from the male. Like the male they have the prosternum 
truncated and vertical behind. In E. mutatum the prosternum 
is feebly arched and almost flattened behind, the species there- 
fore belonging to the Hypermallus section of the genus. The 
spines at the apices of the joints of the antennae do not stop 
with the seventh joint, as Chevrolat’s description seems to 
imply, but, gradually becoming smaller, are met with up to 
the tenth joint. Dr. Horn’s male specimen, which w^as from 
Keys, Florida, differed from the females only in having 
slightly longer and slenderer antennae and in having the apical 
border of the last abdominal ventral segment pointed in the 
middle and sinuate towards the sides. In the female this 
segment is rather sharply rounded at the apex. 
E. tomentosum , Chevr., bears a very strong resemblance to 
E . mucronatum , Say, but is to be distinguished by the much 
less close punctuation of the elytra and of the sides of the 
prothorax. 
Hormathus, gen. nov. 
This genus is formed for an interesting little species from 
St. Domingo belonging to the Ibidion group. It has the 
characters which Lacordaire has given for the genus Cycni- 
dolon, with the following differences and additions: — Fifth 
joint of the antennas, in addition to the third and fourth, 
strongly thickened, none of the joints carinated. Pro thorax 
very slightly constricted in front of the middle. Elytra with 
