1853.] AAT 
One specimen. Resembles E. muricatum Say, but is longer and narrower, 
with the broad margin of the elytra more suddenly reflexed and almost perpen- 
dicular. Although so different in form, this genus is only distinguished from 
Eleodes by the inferior plane of the mentum being more rounded and more deeply 
impressed; its anterior margin is slightly incised ; the Jateral angles are so much 
inflexed as to be invisible; the tarsi are sulcate beneath, and fringed at the 
apex and sides with short spines; the middle joints of the posterior tarsi appear 
more elongated than in Eleodes. I have great doubt of the generic value of any 
of these differences, and several nondescript species from New Mexico seem to 
be intermediate, both by the form of the body and by the differences in the 
mentum. 
_ Lyra Linn. 
1. L. fulvipennis Zec., Proc. Acad. Nat. Sc. 6, 33, though smaller, does not 
appear sufficiently different from L. cardinalis Chev., Col. Mex. cent. 1. 
2. L- cribrata, atra, capite thoraceque nitidis, punctis paucis impressis, 
illo macula frontali magna sanguinea, hoc lateribus sanguineis, rotundato, disco 
bifoveato, vix canaliculato, elytris opacis lineis elevatis irregulariter reticulatis, 
thorace fere duplo latioribus. Long. +77. 
One specimen. This species, having the joints of the antenne oval, and the 
labrum slightly emarginate, and the outer spur of the posterior tibia obtuse, 
belongs to division A—c of my essay on this genus, (Proc. Acad. 6, 331;) the 
outer joints of the antennez are hardly thicker than those near the base; they 
extend to about the anterior third of the elytra. L. reticulata Say (Journ. Acad. 
Nat. Sc. 3, 305) must resemble this species, but is said to be entirely black, 
tinged slightly with green. The antenne are said to be thickened towards the 
tip, and the punctures of the thorax confluent posteriorly. 
3. L. morio, atra immaculata, confertim subtiliter punctata, brevissime 
pubescens, thorace latitudine paulo breviore, subcanaliculato, angulis anticis ro- 
tundatis, labro vix emarginato, tibiis posticis calecare externo paulo latiore. 
Long. :-4—:53. 
This species resembles L. pensylvanica, but is larger and more robust, and 
the thorax is wider; in form it precisely resembles L. fissilabris Lec., but the 
labrum is very slightly emarginate, and the spurs of the posterior tibie are not 
equal. The head, asin L. pensylvanica, has a fine glabrous, longitudinal line. 
4. L.sub lineata, elongata, nigra subtiliter dense punctulata, dense luteo- 
griseo pubescens, thorace capite sesqui angustiore, latitudine paulo longiore, 
lateribus parallelis antice rotundatis, disco late canaliculato, macula utrinque 
denudata ad medium ornato, elytris minus dense pubescentibus, sutura, margine, 
apice vittaque lata postice abbreviata densius griseo pubescentibus, lineis tribus 
tenuissimis denudatis atris, tarsis palpis antennisque nigris, his articulo 2ndo 310 
paulo breviore. Long. 1:05. 
One female, with the first joint of the antenne extending to the posterior mar- 
gin of the eyes. ‘This fine species resembles L. immaculata and longicollis, but 
the thorax is less convex, and the unequal distribution of the pubescence will 
distinguish it. The posterior tibie appear black, but I do not think that this 
will be found to be a constant character. 
5. L.fulvescens, nigra elongata dense subtiliter pubescens, densissime 
luteo-fulvo-pubescens, thorace capite paulo angustiore, latitudine longiore, late- 
ribus parallelis antice rotundatis, canaliculato, elytris thorace paulo latioribus 
immaculatis, antennis tarsisque nigris, illis articulo 2do 3io fere quali, palpis 
testaceis, apice nigris. Long. -59—-68. 
Several specimens; found also by Lieut. H. Haldeman in Texas. Resembles 
L. longicollis, but is smaller and without any denuded humeral spot. By the 
color of the palpi it also differs from all the allied species. The first joint of the 
antenne extends a little beyond the posterior margin of the eyes in the male; in 
the female it is a little shorter. 
L. ferruginea Say, L. conspersa Lec. and L. immaculata Say, besides L. my- 
