ALLOC'HROMA. 185 



3. Allochroma sexmaculatum. (Tab. VII. fig. 7.) B.M. 



A. oblongo-ovatum, sat robustum ; capite foveolato ; thorace trans- 

 verso, ad latent marginato, ad basin depresso, punctato, fusco- 

 rufo ; elytris latis, punetato-striatis, apicem versus obsoletis, tes- 

 taceis, nigro sex-maculatis ; maculis duabus ante medium obliquis, 

 (Uteris duabus post medium subcircularibus, et juxta humeros 

 duabus minutis, fusco suffusis ; antennis robustis, Jiliformibus, 

 rufo-fuscis ; pedibus robustis, rufis, fusco suffusis. 



Long. corp. 3 lin., lat. 11 lin. 



Oblong-ovate, tolerably robust, impubescent, punctate-striate, 

 shining, testaceous. Head short, very slightly produced in front ; 

 above the labrum is a distinctly transverse plane depression ; imme- 

 diately above the antennae is a longitudinal fovea (extending nearly 

 to the basal line) which is bisected at right angles by a short trans- 

 verse carination, these two together forming, medially, between the 

 eyes the character of a cross ; on either side of these is a lateral 

 angulated depression almost parallel to, but not approaching, the 

 margins of the eyes ; closely adjoining the base of the antennas is 

 another small but deep depression ; the surface is impunctate and 

 rufous. Thorax somewhat broader than the head, transverse, rect- 

 angular ; the anterior angles acute and depressed ; the sides broadly 

 marginate; near the basal angles is an indistinct depression, more 

 apparent when viewed transversely ; the surface is deeply punctate 

 throughout, of a dark rufous colour suffused with fuscous. Scutellum 

 triangular; the apex being somewhat rounded, impunctate, black. 

 Elytra broader than the thorax, robust, punctate-striate, the punc- 

 tures being largo and deep, and the striae very apparent at the 

 humeral angles ; the striae near the middle are no longer discernible, 

 while at the apex the punctures are almost entirely obsolete ; the 

 colour is testaceous : on either side of the suture are two irregu- 

 larly formed black markings ; the one, antemedial, extends obliquely 

 from the second to the fifth stria, in form obliquely and irregularly 

 lozenge-shaped (on either side of this, between the seventh and 

 eighth striae, is a minute subcircular spot of suffused black) ; the 

 other, postmedial, immediately adjoining the suture, is subcircular. 

 between the second and the seventh rows of punctures. Antenna 

 robust, filiform, rufous ; the fifth and sixth joints being longer than 

 the third. Legs rufous, suffused with piceous. 



A. sexmaculatum has evidently a very extended range. I have 

 before me examples from Guatemala (from the British Museum col- 

 lection), St. Catharine, and other districts of Brazil. 



In the collection of the British Museum, and in most private cabinets. 



