337 
.age punctatis, hoc subeampanulato, basi medio impresso, elytris fortiter punc- 
tulatis, pedibus flavo-rufis, genubus, tibiis apice tarsisque ceruleo-nigris, anten- 
nis nigris extus incrassatis. Long. :7. 
Lytta enea var. Say, Long’s Exped. St. Peter’s River, 2, 288. 
One specimen, Illinois. Mr. Rathvon. Brassy olive colored, without Justre ; 
head finely and sparsely punctured, pilose, with short, gray hair, slightly dilated 
behind the eyes, which are moderate, truncate at base, obsoletely emarginate. 
Labrum blue, deeply emarginate. Antenne black, about as long as the head 
and thorax, moderately thickened externally, outer joints conical, rounded, last 
joint less constricted than in the two preceding. Thorax scarcely narrower than 
the head, obsoletely sparsely punctured, slightly pilose, campanulate, sides pa- 
rallel, dise slightly flattened, obsoletely channelled, middle of the base slightly 
reflexed. Elytra nearly twice as wide as the thorax, parallel, finely and densely 
punctured, Legs bright orange colored, coxe, trochanters, knees, apex of the 
tibiz and tarsi blackish blue; outer spur of posterior tibize subrhomboidal, con- 
cave. 
22. L. filiformis, elongata, purpurascens, cinereo parce piloso, thorace 
lateribus parallelis parce punctulato, basi medio reflexo, elytris subtiliter scabris, 
pedibus flavis, genubus tarsisque fuscis, antennis nigris extus incrassatis, 
Long. °3. 
Cantharis filiformis Le Conte, Journ. Ac. Nat. Se., New Ser., 1, 91. 
One specimen; Texas. Mr. Lindheimer, and given me by Dr. Engelman. 
Body slender, purplish, brassy, moderately pilose, with gray hair. Head not 
dilated behind the eyes, truncate at base, sparsely and coarsely punctured: mouth 
black, labrum deeply emarginate. Antenne longer than the head and thorax, 
thickened externally, outer joints subglobular, last joint not constricted. Thorax 
subquadrate, sides parallel, rounded in front, obsoletely punctulate: base re- 
flexed in the middle; elytra a little wider than the thorax, paralle!, finely sca- 
brous. Feet rufo-testaceous, knees and tarsi darker; coxe and trochanters 
black; outer spur of the posterior tibiz broad and concave. 
23. L. enea, minus elongata, obscure znea, capite parce punctato thorace- 
que cinereo-pilosis, hoc subquadrato, lateribus parce punctato, basi vix reflexo, 
elytris scabris, pedibus rufo-testaceis, antennis extus incrassatis. Long. -57. 
Say, Journ. Ac. Nat. Sc. 3, 301. 
Cantharis nigricornis Lec, Journ. Ac. Nat. Sc., New Ser., 1, 90. 
Pennsylvania and Missouri. The head is obsoletely emarginate at the base; 
the outer joints of the antenne are subglobular, the last joint not constricted. 
C. nigricornis Lec. is a variety with more punctures on the side of the thorax. 
B 
24. L. mylabrina, supra flava glaberrima, capite convexo, parce punctato 
postice valde rotundato, labro palpis antennisque nigris, thorace elongato, apice 
angustato, nigro 4-zuttato, elytris subtiliter punctulatis, maculis duabus utrinque 
pone basin, altera ad medium apiceque nigris; pedibus flavis, genubus tibiarum 
apice tarsisque nigris. Long. -58. 
Pyrota mylabrina Chevrolat, Ins. de Mexique, No. 3 (Nov. 1834.) 
Mexican Boundary ; collected by Mr. Clark. This species is extremely simi- 
lar to the next, but differs in the form of the head, which is here much rounded 
behind, and not at al] quadrate: the neck is marked with a black spot each side. 
The body beneath is variegated with black and yellow, the margin of the abdo- 
minal segments being always yellow. The outer spur of the posterior tibie is 
cylindrical and obliquely truncate. 
Co 
25. L. Engel mannii, supra flava, glabra, capite convexo, parce punctato, 
-nigro maculato postice latius rotundato, labro palpis antennisque nigris, thorace 
elongato nigro 4-guttato, apice angustata utrinque nigromaculata, elytris confer- 
tissime punctulatis, maculis duabus pone basin, altera magna ad medium, apice- 
que nigris, pedibus nigris, femoribus basi testaceis. Lonw. °7. 
Pyrota Engelmannt Le Conte, Journ. Ac. Nat.Sc., New Ser., 1, 91. 
