500 PHYTOPHAGA. 



elytra narrow and parallel, more distinctly punctured than the thorax, clothed with short and fine pubes- 

 cence, a triangular testaceous or fulvous spot at the extreme apex of each, the sides with a narrow longi- 

 tudinal pale stripe, the latter forming a distinct acute ridge owing to the perpendicularly deflexed lateral 

 margin : legs and the abdomen more or less testaceous, the rest of the underside fuscous. 



Hab. Mexico, Oaxaca (Salle) ; Panama, Volcan de Chiriqui, Bugaba (Champion). 



The antennae in this species are scarcely, if at all, dilated in the middle ; S. lateralis 

 agrees in this respect, as well as in general shape and colour, with S. apicipennis, Clark, 

 but may be readily recognized by the pale lateral stripe to the elytra, the deflexed sides 

 of which are invisible when the insect is viewed from above. Many specimens were 

 obtained. 



5. Schematiza sallaei. (Tab. xxviil. fig. 10.) 



Narrowly parallel, fuscous ; lower part of the face and the femora testaceous ; thorax obscure rufous, the sides 

 marked with black ; elytra finely pubescent, fuscous, a spot at the apex of each fulvous. 



Length 3 lines. 



Head finely rugose, the vertex black or fuscous, the lower part testaceous ; antennae slender, half the length of 

 the body, black, the third joint elongate and much longer than the following ones ; thorax transverse, the 

 sides rather rounded, the anterior and posterior margins straight, the posterior angles somewhat oblique, 

 the surface finely pubescent (obscuring the punctuation), more or less rufous, with a piceous more or less 

 distinct longitudinal band at each side, the sides themselves and the middle of the disc often yellowish ; 

 scutellum fuscous, broad, its apex truncate ; elytra parallel, their apices produced into a small tooth, the 

 surface finely rugose and pubescent and of a uniform dark fuscous colour, the apex of each with a round 

 yellowish spot (tinged with rufous) generally not quite extending to the suture. 



Hah. Mexico, Tuxtla, Capulalpam, Playa Vicente, Toxpam (Salle), Oaxaca (Edge) ; 

 Guatemala, Senahu, Teleman, San Juan in Vera Paz (Champion). 



This insect closely resembles S. apicalis, Clark, but on comparing the type of 

 the latter in the British Museum with the present insect, I find several distinctive 

 characters : — in S. sallcei the antennee are much longer ; the apices of the elytra are 

 produced into a point and not rounded ; and the thorax apparently never has a central 

 dark spot or band, the latter being placed (when present) at the sides. 



6. Schematiza apicalis. 



Schematiza apicalis, Clark, Trans. Ent. Soc. 1864, p. 268 \ 



Hab. Panama, Volcan de Chiriqui (Champion). — Colombia 1 ; Peku (coll. Jaeoby). 



The differences, if any, between the specimens obtained by Mr. Champion and the 

 type of Clark (which I have examined) are too slight to regard them as anything else 

 but local. In S. apicalis the apices of the elytra are rounded, and the thorax, instead 

 of having lateral piceous spots, has a central more or less distinct band ; the general 

 colour and the apical elytral spots agree with the preceding species, but the spots are 

 less distinct, and extend in all the specimens to the suture. In one or two examples of 

 what is doubtless a variety, traces of longitudinal raised lines on the elytra are visible 

 and the thorax has three piceous marks. 



