NATURAL SCIENCES OF PHILADELPHIA. 25 



B. Elytra with the ninth stria interrupted. 



Elytra blue, thorax red. Sayi. 



El^'tra red, spotted wilh black. 



Larjjer, spots discoidal. S-jmnrfata. 



Smaller, spots common, sutural. albini. 



1. L. cornuta (Feb. 1801), Lac. Mon., i. p. 382. 



Red, elytra blue, knees, tibia?, tarsi, and untennre black. L. .22. 

 South Carolina, Leconte. 



2. L. texana, sp. n. 



Very near L. cornuta, but rather smaller ; head much less 

 strongl}"^ tuberculate ; first joint of antennae, scutellum, and legs 

 entirely red. L. .21. Texas, not rare. 



3. L. brunnicollis, Lac. Mon., i. p. 391. 



Also near L. cornuta, but smaller and in proportion broader ; 

 antennae, legs, and abdomen black. L. .18. Southern States. 



4. L. maculicollis, Lac. Mon., i. p. 392. 



Black, elytra blue ; thorax red, elongate, subc3dindrical, aluta- 

 ceous, with two fuscous vittte. L. .18. Southern States. 



5. L. collaris, Say, J. Acad., iii. 430. 



Black, thorax red, elytra black ; head roughly sculptured in 

 front ; thorax short, hardly constricted, impunctate ; elytra punc- 

 tate, striate shining. L. .20. Texas. 



Var. El^'tra blue, thorax faintly punctate, more constricted. 

 Illinois. 



6. L. peninsulae, sp. n. 



Entirely polished black, elj^tra steel-blue ; head deeply sculp- 

 tured, front with an impressed Y-like mark; thorax longer than 

 broad, constricted obliquely behind the middle, disk sparingly 

 punctate ; elytra seriate punctate, interstices very sparsely punctu- 

 late. L. .22. Lower California (Leconte). 



7. L. solani (Fab.), Lac. Mon., i. p. 400. 



Red, metasternum, legs, antennae, and head black; elytra blue; 

 margin and a medial fascia red; interstices very sparingly punc- 

 tulate. L. .25. Florida. 



8. L. conjuncta, Lac. Mon., i. p. 405. 



Red, antennae (except the first joint), tibiae, and tarsi black: 

 elytra blue, margin and a small basal spot red. L. .24. Florida. 

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