172 Mr. C. 0. Waterliouse on neio Buprestidae. 



XX. — New Genera and Species o/' Buprestidfe and 

 Heteromera. Bj Charles 0. Watehhouse. 



Buprestidae. 



Ptoswia Boioringii, ii. sp. 



Cylindrica, tete cyaneo-violacea, uitida ; thorace creberrime evi- 

 de liter punctato ; elytris punctato-striatis, apicem versus fascia 

 sanguinea oruatis. 



Long. 4 lin. 



Head gently convex, thickly and finely ])unctured. Thorax 

 very distinctly, not very strongly, very thickly punctured, but 

 the punctures are not crowded; the punctures stronger to- 

 Avards the sides, but the anterior angles are nearly smooth; in 

 the middle of the base there is a short impressed line. Elytra 

 with lines of very distinct punctures ; near the suture and at 

 the apex there are impressed stria? ; the interstices have each 

 a single line of finer and more distant punctures. • A little 

 way from the apex there is a bright red fascia, made by a 

 triangular spot on each elytron uniting with the other at the 

 suture. 



Hah. China (/. C. Bown'nrf, Esq.). Brit. Mus. 



Ptosima apicata^ n. sp. 



Hubcylindrica, dorso depressiusculo, sat nitida, olivaceo-iKnca ; fronte 

 puvpurasceutc, parum coucava, crehrc sat fortiter punctata, ver- 

 tice subtilius punctulata, guttis duabus flavis ornata ; thorace cre- 

 berrime punctato, antice convexo, basi media paulo producta, 

 minus crebre punctata, linea brevi impressa, lateribus macuHs 

 duabus flavis ; elytris striatis, striis crebre punctatis, interstitiis 

 uniseriatim minus crebre punctatis, maculis sex flavis ornatis, apice 

 dentato. 



Long. 6 lin. 



Eesembles P. amahilis, L. v.^ G., in general form and ap- 

 pearance, and agrees with it in having the apex of each 

 elytron tridentate. It differs in having the forehead slightly 

 concave. The thorax is longer, and more angularly produced 

 in the middle of the base ; the sides are slightly angular in 

 front of the middle; and the posterior angles are not turned in ; 

 there is a small yellow spot on the anterior angle, and a much 

 larger one near the hind angle. The scutellum is more elon- 

 gate triangular. The scutellar region of the elytra is im- 

 pressed ; the striai are more distinct and the punctures on the 

 interstices are as strong as those in the strias ; the suture at 

 the apex is finely and more thickly punctured. There is an 

 oblique yellow spot over each shoulder, a transverse one 



