TEEETILANGTJEIA. 9 



Very close to T. panamce, and possibly not distinct therefrom ; yet differing in being 

 entirely of a brassy colour, in the thorax of the male not perceptibly more convex than 

 that of the female, in the apical segment of the male more profoundly cut out on the 

 right side (although it is not cut symmetrically in any of the species), and also in its 

 rather narrower form. 



The species of this genus are apparently very closely allied, and I believe that the 

 above given distinctions represent a separate species. I have as yet seen but three 

 specimens, two of which are from Costa Rica. 



3. Teretilanguria nigro-senea. 



Nigro-senea, nitida ; capite prothoraceque crebre et distincte punctatis, illo trapezoideo ; elytris obsolete sub- 

 striatis, punctis vix discretis, apicibus rotundatis et minute denticulatis. Long. 14 millim. S $ • 



Hab. Guatemala, Panajachel, Tamahu (Champion). 



This insect is so similar in size and colour and general appearance to Trapezidera 

 cenea and to Dasydactylus chalceus, that, apart from generic characters, it is very difficult 

 to separate it. A comparison with these species will be better than any further 

 description: from the former, the more strongly punctate head and thorax, darker 

 colour, and the want of any basal marginal line to the thorax form sufficient superficial 

 characters of distinction ; from the latter, in addition to these differences, the structure 

 of the tarsi and the very obsolete puncturing of the elytra differentiate it ; the elytral 

 teeth at the same time are stronger in T. nigro-cenea, and in the male the femora are 

 scarcely roughened, though longer and stouter in all the legs. Two specimens. 



4. Teretilanguria versicolor. (Tab. I. figg. 6, $ ; 6 a, s .) 



Supra nigro-subviridis vel viridi-senea, infra flava, variegata, nitidissima ; capite prothoraceque minute sparse 

 punctatis, illo ore, basi maculis nonnullis et infra, hoc lineis duabus vel maculis tantum in margine 

 antico femoribusque basi et infra, flavis ; abdomine segmentis singulis nigro maculato. Long. 14|-15 

 millim. S $ • 



Hab. Mexico, Toxpam (SalU\ Cordova (Edge) ; Guatemala, Purula, Sabo, San Juan 

 in Vera Paz, Cubilguitz (Champion). 



Head with the eyes rather prominent ; antennae black ; face often much variegated 

 with yellow, the space round the base of the antennae and the orbit being sometimes so. 

 Thorax quadrate, rather convex, not differing much in the sexes ; its underside, and two 

 spots from which lines proceed from the front margin, yellow, these lines sometimes 

 reaching the base and often only represented by the spots. Elytra smooth, green or 

 blackish. Abdomen yellow ; the angles of the metasternum and each segment with a 

 blackish spot. The apex of the abdomen is excised unsymmetrically, but not so deeply 

 in the males as in the preceding species. 



biol. cente.-amek., Coleopt., Vol. VII., September 1887 C* 



