176 LE CONTE.— LONGICORN COLEOPTERA 



Middle and Southern States. The ciliae of the antennae are mostly gathered in 

 tufts near the extremity of the articulations. One of the dark marks of the elytra is 

 usually more evident, and forms a little angulated band behind the middle. 



2. A. DECIPIENS, fusco cinercus, dense pubescens, thorace medio non elevato, elytris minus dense punctatis 

 fusco nebulosis, lineis 2 transversis angulatis utrinque pone medium signatis, antennis annulatis. 

 Long. -b. 

 ^gomorphus decipiens Hald. 45. 



Georgia and Louisiana ; rare. This is much more slender than the preceding 

 species ; the cilise of the antennae are scattered along the whole length of the articu- 

 tions. I have found no sufficient character for separating it from Acanthoderes. 



Species generis incerti. 



Lamia mixta Fabr. Syst. El. 2, 290. 

 Lamia obscura Fabr. Syst. El. 2, 290. 

 C&ramhyx clavipes Forster. Cent. Ins. 42. 

 Lamia Q-guttata Say. J. Ac. Nat. Sc. 5, 269. 



These four species should hereafter be omitted, they are totally irrecognisable 

 from the descriptions. The last is probably one of the species of Leptostylus described 

 above, but from the confused description it is impossible to determine whether the 

 six spots are placed on one elytron or on both. 



ADDENDA. 



Vol. I. p. 332. Strangalia quagga. After careful examination I am convinced that this is the true 

 Leptura nitens Forster (Cent. Ins. 45). This latter specific name having precedence 

 must of course be retained, 



p. 833. Typocerus fugax. Newman in the Entomologist asserts that Leptura tenuior 

 Kirby, is the same as L . fugax Fabr. 



p. 334. Typocerus zebratus. Add as a synonom Leptura Carolina Weber. Obs. Ent. 91 . 



Vol. II. p. 1, add : 



MEGADERUS Dupont. 



1. M. BIFASCIATUS, ater, thorace postice subito angustato, disco inEequali, valde punctato, basi subtiliter 

 punctulata, elytris usque ad trientem secundum flavis, apice fasciaque ante medium et scutello atris, tibiis 

 Icete flavis. Long. 1-0. 

 Dupont. Mag. Zool. 1836. pi. 141, fig. 2. 

 M. corallifcr Newman. Mag. Nat, Hist. 4, 185. 



Fort Gates, Texas. For this splendid addition to my cabinet, I am indebted to 

 Haldeman ; it is one of the most interesting species added to our fauna by the 

 scientific zeal of his brother, Lieut. Haldeman. An excellent figure of it will be 

 contained in the Report of Capt. Stansbury's Expedition. 



