336 LE CONTE.— LONGICORN COLEOPTERA 



LEPTURA, Lin. 



Leplura, Dej. Trigonarthis, Dej. Grammoptera, Serv. 



Caput pone oculos subito valde constrictum. 

 Palpi vix dilatati, labiales vix latiores. 

 Antennae ll-articulatee, articulis baud impressis. 

 Thorax angulis posticis baud productis. 



Differs from Strangalia in the form of the thorax alone. Our species may be 

 arranged into seven groups, as follows : 



A. Tborace postice modice constricto, elytrls triangularibus fere glabris, grossius punctatis. 

 a. Elytris apice incisis. Sp. 1 — 3. 



h. Elytris divaricatis, fere integris. Sp. 4 — 5, 



B. Tborace longiusculo, utrinque subconstricto, elytris parallelis, truncatis fere glabris. Sp. 6 — 8. 



C. Tborace globoso, utrinque constricto, elytris parallelis integris. Sp. 9. 



D. Tborace convexo, canaliculato, lateribus subangulato. 



a. Elytris parallelis parum pubescentlbus. Sp. 10 — 11. 



h. Elytris triangularibus truncatis, valde pubescentibus. Sp. 12 — 14. 



E. Thorace lateribus parum rotundato, elytris elongatis, vix triangularibus. Sp- In — 18. 



A.— fl. 



1. L. CANADENSIS. — Nigra parum pubescens, thorace elongatulo, antrorsum angustato, cribratim punctate, 



elytris dense grosseque punctatis, punctis versus apicem subtilioribus, basi sanguineis. Long. -Vl — 65. 

 % antennis elongatis serratis concoloribus. L. tenuicornis, Hald. 64. 

 9 antennis articulis 3, 4, 5, 7 et 9 basi pallidis, 6 et 8 pallidis apice nigris. 

 L. canadensis, Fabr. El. 2, 357 : 01. 73, 27. 



Georgia, New York, Canada. 



2. C. ERYTHROPTERA. — Nigra parum pubescens, tborace latitudine non longiore, antrorsum angustato, 



lateribus rotundatis, cribroso ; elytris sanguineis dense grossius punctatis, subtilius versus apicem. 



Long. •?. 

 Kirby N. Z. 180. 

 Leptura cinnamopte?'a, Hald. 64. 



New York and Missouri Territory. I have never seen a male : the female has 

 antennae like the preceding. Mr. Haldeman changed the name of this species, 

 believing Kirby'sto be preoccupied by Germar : but Say's Leptura ruhrica having 

 priority by one year, this necessity is obviated. 



3. L. RUBRicA. — Nigra, tborace flavo pubescente, longiusculo, antrorsum angustato, lateribus rotundatis, 



cribroso, elytris sanguineis, minus dense grosse punctatis, subtilius versus apicem, antennis articulis 

 6 — 10 pallidis apice nigris. Long. •45-'6. 

 ■ Say J. A. N. S. 3, 418, (1824.) 



Leptura erythroptera, Germ. Ins. Nov. 522, (1825.) 



New York to Georgia. The male has the abdomen sanguineous. 



