22 Mr. 0. J. Gahan on Longicorn Coleoptera 



Hammaticherus lasiocerus^ sp. n. 

 Ploccederus laxiocents, Dej. Cat. 



Picco-ferruf^ineus, fulvo-grisco-pubesccns; capitis fronte antennisqao 

 griseo-villosis ; prothorace lateraliter valde tuberculuto, supra 

 transversirn sat regulariterque plicato ; elytris fulvo-testaceis, 

 opacis, griseo-pubescenlibus ; apicibus truncatis, utrisque bispi- 

 nosis ; antennarnm articulo tertio quam quarto fere duplo longiore, 

 articulis tertio quartoque apice spina valde recurva armatis, 

 ceteris inermibus. 



(S . Long. 33, lat. 9J mm. 



Jfah. Brazil. 



This species somewhat closely resembles H. ph'cat us, OViv., 

 but the prothorax is more pubescent and its plication some- 

 what less regular towards the middle, and the elytra are 

 without dark margins. It may be distinguished from this 

 and from every other species in the genus by the yellowish- 

 grey villosity covering the antenme and the front of the head, 

 by the long third joint of tlie antenna, and by the spines of 

 the antenna^, which are confined to the third and fourth joints, 

 and which are rather short and directed very much backwards. 



Hammaticherus murimts^ sp. n. 

 Ploccederns nmrinus, Tie)., MS. 



Parvus ; fuscus, omnino denseque murino-pubeseens ; protho- 

 race supra leviter interrupteque plicato ; elytris punctulatis sat 

 dense pubescentibus, apicibus truncatis utrisque bis{)inosis ; an- 

 tennis ( d" ) corpore sesquilongioribus, articulis qninto ad decimum 

 apice Rpinoso-dentatis ; auteunis ( § ) corpore vix longioribus. 



Long. 17, lat. 5 mm. 



ITah. Corrientes. 



'J'his species may be recognized by the rather close mouse- 

 grey pubescence, which entirely covers it. The ruga:^ of the 

 jirothorax are feebler than in other species of the genus, and 

 do not seem to exceed eight or nine in number. The dense 

 and very fine punctuation of the elytra is scarcely visible 

 under the ratiier close ])ubese(Mice. The joints of the antennae 

 from the third to the tenth are dentate at the inner apex, 

 the third and fourth very feebly so, the tilth and some of the 

 following alriSost spinose. 



Hammaticherus luruh'pennis (Ohevr., MS.), sp. n. 

 rernigiiH'us, corpore siibtiiM gviscc ^nbtiliter pubcseonlc ; antcnnis 



