1852.] | 67 
Creek Boundary. This species is allied to C. tricolor, nemoralis, vicinus, &c., 
but the punctures on the thorax are very small and almost obliterated. ‘The 
labrum is wide, scarcely emarginate ; the head is bright blue, very finely punc- 
tulate and wrinkled; the thorax is blueish, wider than long, at the apex nar- 
rower than at the base; very much rounded on the sides anteriorly ; the base 
is truncate ; the angles obtuse, not rounded; the dise scarcely convex, finely 
and very obsoletely punctured; the basal impressions long and shallow. The 
elytra are wider than the thorax, dull black; the strie are deeply punctured 
nearly to the tip; the interstices are slightly convex, and very finely punc- 
tured. ‘The first three joints of the antennz, the palpi and the legs are ferru- 
ginous. 
6. Euryderus zabroides Lec. An. Lye. 4, 152, tab. 8, fig. 5. 
The genus Eurydera Lap. seems to be founded upon good characters, although 
it was for a long time refused by entomologists. Its adoption requires a change 
of name for my genus, and in allusion to the singular form of the anterior tibie, 
I give Notho pus as the new generic name. 
7. Calosoma externum. Carabus externus Say. J. Ac. Nat. Sc. 3, 
150: Lec. An. Lye. 4, 445. Calosoma longipenne Dej. Sp. Gen. 5, 568. This 
insect after all, seems to be a genuine Calosoma, by the structure of the antenne 
and palpi. I have seen specimens without wings, but extensive observation has 
convinced me this is to be considered as accidental. Its form is more similar 
to Carabus than any other species of Calosoma. 
8. Euphoria melancholica Schaum.’ An. Ent. Soc. Fr. 2d ser. 2, 
374. A specimen from New Mexico has the thorax and elytra much less punc- 
tured than the Louisiana specimens, but I can find nothing worthy of being con- 
sidered as a specific difference. 
9. Eleodes sulcata, nigra, thorace parvo, ovato, parce punctulato, 
basi truncato, elytris ovalibus apice acutis, dorso depressis, postice valde declivi- 
bus, profunde sulcato-striatis, sulcis granulatis, femoribus anticis breviter ar- 
matis. Long. °75—-97. ; 
A fine species, abundant in every part.of Missouri Territory and easily dis- 
tinguished by its suleate elytra. Head punctured. Thorax a little wider than 
Jong, rounded on the sides, narrowed behind; moderately convex, sparsely 
punctured, anterior angles prominent acute, base truncate. Elytra more 
than twice as wide as the thorax, elongate oval, depressed on the disc, 
deflexed at the apex, whichis acute; the lateral margin obtuse; strie broad, 
deep and obtuse, rough with elevated points; interstices not wider than the 
striz, convex, marked each with a single series of distant punctures; epipleure 
less deeply striate than the disc. Anterior thighs armed with a short, sharp 
eee The female differs by having the elytra broader and less acute at 
the tip. 
10. Myodes scaber, ater confertim punctatus, vertice elevato, tho- 
race antrorsum angustato, utrinque truncato, medio obsolete carinato, elytris 
parce punctatis, abdomineque flavis. Long. :35. 
A very imperfect specimen from the Creek boundary, which is distinguished 
from another Southern species having a yellow abdomen, by its much larger 
size, more punctured head and thorax, and immaculate black feet. J am in- 
clined to believe that the color of the abdomen is a sexual character as in the 
European M. subdipterus. 
11, Acmeodera variegata, cupreo-enea, pilosa, thorace brevi 
confertissime punctato, macula laterali lutea, elytris basi minus convexis, fasciis 
irregularibus luteis anterioribus confluentibus. Long. °35. 
The specimen of Dr. Woodhouse being imperfect, my description is taken from 
some collected by Mr. Fendler near Santa Fe. 
Body coppery-bronzed, with erect brown hair. Thorax very densely and 
coarsely punctured, three times as wide as long, sides rounded anteriorly, al- 
10 
