70 Mr. J. O. Westwood's Description of 



Sp. 1. Blepiisa costata, Westw. 



Nigra, nitida, thoracis margine postico punctato, elytris striato- 



punctatis et costatis, tarsis piceis. 

 Long. Corp. lin. 6, 

 Habitat in Mexico ? D. Cuming. 

 In Mus. Dom. Norris, M, E. S. 



Caput nigrum, laeve, nitidum, oculis pallidis lutescentibus ; 

 palpis, labro et antennarum articulorum apicibus piceis. 

 Thorax laevis, nitidus, subconvexus, lined impress^ longi- 

 tudinah', lateribus raargineque postico tenue marginatis, hoc 

 foveis duobus intra angulos posticos margineque ipso punc- 

 tato. Pedes nigri, tibiarum apicibus tarsisque piceis. Elytra 

 nigra, nitida, in singulo striae 9 punctorum impressorum, cos- 

 tisque elevatis tribus (sc. inter strias 2 et 3, 4 et 5 et 6 et 7, 

 e suturd) ; strid alterd abbreviata versus scutellum. 

 This interesting insect is from the rich collection of T. Norris, 

 Esq., of RedvaleSj Lancashire, to whom I am indebted for an 

 opportunity of examining and describing it. He obtained it from 

 Mr. Cuming, but is not aware of its precise locality. It is, how- 

 ever, most probably from Mexico, or some adjacent part of South 

 America, from which other allied species described by M. Solier 

 have been received. 



Section Tetramera, Latreille. 



Sub-Section Longicornes, Latreille. 



Genus. Rhipidocerus, Westw. ('PtTrlc, Jlahellum, et Kepag, cornu.) 

 Plate III. fig. 2. 



Genus singulare, inter genera Phce7iicoceriim et Polyozam,* quasi 

 intermedium. 



Corpus oblongum, depressum. 



Caput (fig. 2 a, e latere, 2 h, subtus visum) thorace minus, facie 

 depressd. Mandibulae (fig. 2 c?, 2 e) parvae, corneae, subtri- 

 angulares, interdum dente minuto ante medium armatse, 

 denteque altero laterali. Labrum (fig. 2 c) parvum, trans- 

 verso-triangulare, ciliatum. Maxillae (fig. 2/) parvae, raem- 

 branaceae ; lobo interno fere obliterato, lobo externo elongate, 

 curvato, ad apicem longe setoso. Palpi maxillares brevissimi, 

 4-articulati, articulis 1 et 3, 2 et 4 aequalibus. Mentum (fig. 2g) 

 parvum, transversum, autice angustatum, truncatum. Labium 



* Phcenicocerus Dejeanii,T-.'alT.= Psygmatocerus Wagleri, Perty ; but the insect 

 figured in Griffith's Animal Kingdom, under the former name, is the Polyoza La- 

 cordairei, Serville. 



