354 LAMIID.B. 



tubercle bearing three smaller tubercles ; each of the elytra with 

 a strong keel, the base of it to the middle covered with small 

 warts ; the space about the suture grey ; sides of the elytra some- 

 what ferruginous, variegated with black ; the shoulders and the 

 base with several small black warts. On the suture are a few 

 small black warts, the apex on the outside is strongly spined. 

 The abdomen beneath in the middle is quite smooth, the sides 

 with short yellowish hairs. 



Length 8f to 9 lines. 

 Hab. Mexico. 



8. Steirastoma histrionica, n. s. B.M. 



S. antennarum articulo basali (maris) apice intus uninodoso, arti- 

 culo tertio rectiusculo ; capite, thorace, elytrisque pilis curtis 

 griseo-rubris ; thoracis dorso, tuberculis quatuor lineaque 

 media laevibus ; scutello elongate ; elytris singuhs carina dor- 

 sali basi curvata et postice producta ; humeris et elytrorum 

 basi, papillis paucis nigris ; elytris supra nigro-punctatis, apice 

 inermi; tarsis anticis sapra nigris. 



The basal joint of the antennae (in the male) with the apex 

 with a single tubercle near the tip, the third joint nearly straight ; 

 head in front with three raised lines, the central one the longest 

 and dilated between the antennas ; thorax above in the middle 

 with four smooth tubercles and a smooth line down the middle ; 

 scutellum elongated. Elytra with the dorsal keel curved at the 

 base and produced behind ; the shoulders and base with a few 

 small black warts ; head, thorax and elytra more or less thickly- 

 covered with greyish-red bans, with a few small black spots ; 

 the apex simple ; anterior tarsi black. 



Length 9i to 10^ lines. 

 Hab. Honduras, Mexico. 



9. Steirastoma bivitta, n. s. B.M. 



S. fusco-grisea, thorace latere unispinoso, supra fusco bivittato; 

 vittis distantibus ; scutello griseo, hirto, linea basali laevi ; 

 elytris basi papillis paucis, singulis costa carinata. ad suturam, 

 macula fusca subtriangulari post medium, apice subsinuato 

 extus acute mucronato ; abdomine subtus sublaevi. 



Of a brownish-grey, varied with irregular small brown marks ; 

 head in front with a few brown dots ; antennae dark grey, joints 

 browD at the tip. Thorax with the outer side of each of the two 

 strong dorsal ridges deep brown : the sides of the central slight 

 ridge with many impressed punctures; scutellum grey, hairy, 

 with a short smooth line at the base. Elytra at the base with a 



