ee [ JUNE, 
me on the next species is not natural, as the present shews in all its characters 
the gradual transition. 
43. L. erosa, nigra, supra glabra, capite rufo trisulcato, sulco intermedio 
interrupto, thorace nigro inequali canaliculato, elytris flavis, reticulatis, mar- 
gine postice apice fasciaque angusta ad medium nigris, unguiculis parte inferiore 
breviore. Long. *-8—-11. 
Tegrodera erosa Le Conte, Ann. Lye. 5, 159. 
San Diego; in July, abundant. Above entirely glabrous, head rufous, rounded, 
flattened on the dise, sparsely punctured at the sides, deeply excavated with 
three large furrows, the Jateral ones commencing near the antenna, and con- 
verging backwards, the middle one interrupted so as to form two oblong fover. 
Labrum slightly emarginate, black, with two large red spots, palpi black. An- 
tenne as long as the head and thorax, cylindrical, third joint not longer than the 
fourth; eyes transverse, deeply emarginate. Thorax somewhat oval, narrowed 
in front, obsoletely angled on the sides, dise flattened, marked with a few large 
punctures, channeled, broadly impressed anteriorly, foveate each side, broadly 
excavated at the middle of the base. Scutel black. Elytra broad, sloping ob- 
liquely, so that the suture is much higher than usual, dull yellow, coarsely re- 
ticulate; the intervals between the elevated lines are fuscous behind the middle, 
where there is a narrow, transverse, black baad, the lateral margin behind this 
band is black, which color becomes broader at the apex, and is “gradually nar- 
rowed again at the suture. Legs black, tibie entirely straight, spurs of the 
posterior tibia very slender and acute. Claws of the tarsi, with the inferior 
part one half as long as the upper part, and closely united with it at the base. 
C—i. 
44. L. segmentata, nigra, aptera, punctulata, subtiliter dense pubescens, 
thorace subcampanulato, latitudine vix longiore, subeanaliculato, apice et basi 
cinereo-ciliato, abdominis segmentis postice coxisque cinereo-marginatis, anten- 
narum articulo 2ndo 3io sesqui breviore. Long. -71. 
Iytta segmenta Say, Journ. Ac. Nat. Sc. 3, 303. 
Missouri Territory; abundant. The female is more robust than the male, 
and has the elytra gradually moderately dilated posteriorly, but the antenne do 
not differ perceptibly from those of the male. The spurs of the tibie are slender 
andacute. I have made a slight alteration in the name given by Say, to render 
it grammatical. 
This species seems to conneet with the genus Henous Hald. The only differ- 
ence to be found is in the elytra not being connate. I am therefore in doubt 
about the propriety of continuing Henous as distinct from Lytta. 
Several very large specimens “ 95 long) were brought from Texas by Lieut. 
Haldeman ; at first sight they appear different, the dorsal channel being deeper 
posteriorly than in ordinary specimens. The mone seems to be euler broader 
and more quadrate, but I cannot find any CRETE upon which to separate them 
as a distinet species. 
C—k. 
45. L. ochrea, elongata, flavo-testacea, dense luteo-pubescens, thorace 
subcampanulato, subtiliter canaliculato, latitudine longiore, antennis nigro-piceis, 
articulis subconicis, 2ndo 3io vix breviore, palpis piceis. Long. -65. 
One male; New Braunfels, Texas; collected by Mr. Lindheimer. This species 
is Similar in form to the next, but its color is not black but testaceous. ‘The 
antenne are shorter, being only one third the Jength of the body; the joints are 
conical, not elongate: the first joint is,curved and reaches behind the eyes, 
which are more convex and prominent than in the allied species. 
46. L. immaculata, nigra, punctulata, dense cinereo vel fulvo-pubescens, 
thorace subcampanulate, convexo, subcanaliculato, latitudine non longiore, 
tarsis antennisque nigris, his articulo 2ndo 3io rmealll Long. -61—85. 
Say, Journ. Ac. Nat. Sc. 3, 304. 
Lytta articularts Say, ibia. 3,304. 
