-'S — J 
A%i 
2. ligatus^ Germar. Sp. nov®, p. 6. Since de- ( 
igiribed by Dejean under the name of carinatua^ 
pp. Gen. 2, 80* He quotes ligatus doubtfully as 
synonymous. His description, however, agrees 
so perfectly that I feel no hesitation in consider- 
ing them the same. 
3. - C. serratui. Say. Trans. Amer. Philos. 
Soc. Since described by Dejean under the name 
of lineato-punctatus, Sp. Gen. 2, 77; the former 
has, of course, the priority. 
4. C. externuSf Say. Jour. Acad. Nat. Sc. — 
The largest American species I have seen. It 
belongs to Dejean’s twelfth division of this nu- 
merous genus. What is the C. tcedatusy L. 1 
CALOSOMA, Weber. 
1. C. luxatumy Say. Jour. Acad. Nat. Sc. S, 
149. Dej. Sp. Gen. 2, 196. 
2. C. Icevcy Dej. Sp. Gen. 2, 210. I obtained 
an individual of this insect in Mexico. It corre- 
sponds accurately with the description ; but in 
addition I may add that it varies in having a large 
obscure rufous spot on the vertex. 
3. C.- calidumy Fabr. My description in the 
Trans. Amer. Philos. Soc. was taken from the 
true Fabrician species as is evinced by the ex- 
dression “dilated, impressed, golden dots” as ap- 
plied to the elytral excavations. But I did not suf- 
ficiently examine the very closely allied species 
which Dejean has separated from it, as I supposed 
to be only a variety. 
ELAPHRUS. 
1. E. fuliginosus. This new species was found 
in Pennsylvania by Mr. Le Sueur, to whom I am 
indebted for the specimen ; and although the head 
and thorax are destroyed, yet sufficient character 
remains to prove it the analogue of the E. uligi- 
nosusy Fabr., of Europe. In comparison with 
that species, however, many dissimilarities are 
perceptible. The discoidal indentations are lar- 
ger and more obviously emarginated by the en- 
tering angles of the interstitial spaces. The in- 
terstitial spaces are somewhat less regular, and 
have rather large punctures, particularly towards 
the base ; towards the tips of the elytra the punc- 
tures are not larger than those of the uliginosusy 
but are fewer in number. The body is slightly 
larger than in that species. 
U appears so be rare. 
2. E. ruscarius.^ This species I described' in 
the Trans. Amer. Philos. Soc., with a mark of 
doubt, as the E. ripariusy Fabr., but having re- 
cently compared it more accurately with numer- 
ous European specimens, I think it may, with 
propriety constitute a distinct, but certainly, ve- 
ry closely allied species. In comparison with 
the ripariuSy it is rather more robust, of a darker 
colour, more deeply sculptured, as well on the 
thorax as on the elytra, and the discoidal impres- 
sions are somewhat larger and more obvious. 
In these characters my specimens all agree, 
and I possess more or less mutilated specimens 
from Pennsylvania, Mississippi, Arkansaw, Mis- 
souri and the Rocky Mountains. I therefore have 
ventured to separate it as a distinct species* 
(To be eontmuedc) 
