PHEYNOCEPHA. 293 



4. Phrynocepha laevicollis. (Tab. XVIII. fig. 3.) 



Breast and abdomen black ; head, thorax, and legs fulvous ; apical joints of antennae black ; thorax impunctate; 



elytra dark greenish, extremely finely punctured and granulose. 

 Length 2 lines. 



Hab. Guatemala, San Geronimo 3000 feet (Champion). 



Bather smaller than P. deyrollei, and at once distinguished by the more convex, 

 somewhat longer, and entirely impunctate thorax; the third joint of the antennae is 

 proportionately longer than in the allied species, and the last four joints only are black. 

 The single specimen before me is a male, which has the tarsi dilated as usual and of 

 piceous colour. 



5. Phrynocepha capitata. 



Oblong-ovate, bluish black below ; three basal joints of the antennae, head, thorax, and legs fulvous ; tarsi 

 piceous ; elytra bluish green, opaque, granulose, each elytron with a short lateral costa. 



Length 3 lines. 



Head nearly twice as long as broad, with a few fine punctures in front of the eyes ; antennae closely approached, 

 the space between very narrow and occupied by the acutely raised carina ; antennae half the length of the 

 body, three lower joints fulvous, the rest black; third joint nearly three times as long as the second; 

 thorax narrowed in front, extremely finely rugose-punctate, the basilar groove obsolete but distinctly 

 visible ; elytra widened towards the middle, opaque, not visibly punctured, with a narrow costa from the 

 shoulder to before the middle, where it becomes obsolete. 



Hab. Mexico, Tuxtla (coll. Salle). 



The elongate head and the elytral costa well separate the present species from its 

 allies ; in other respects it also differs in the less dilated tibiae ; it has nevertheless the 

 general shape and structural characters of the present genus. Two specimens before 

 me agree in every respect. 



6. Phrynocepha intermedia. 



Below black ; antennae, head, thorax, and legs fulvous ; elytra greenish aeneous, opaque, finely granulate and 

 impunctate. 



Length 2 lines. 



Head rugose-punctate, the vertex with a triangular raised smooth space ; antennae more than half the length 

 of the body ( <$ ), shorter in the female, entirely fulvous, the third joint one half longer than the second ; 

 thorax transverse, scarcely narrower in front than at the base, surface extremely finely punctured, 

 opaque, the base with a very obsolete transverse depression not extending to the margin ; elytra narrow, 

 parallel, of a greenish opaque colour, very minutely granulate and impunctate ; posterior femora strongly 

 incrassate ; tibiae scarcely dilated and feebly channelled. 



Hab. Mexico, North Sonora (Morrison). 



In comparing this species with P. elongata the following differences are to be found : 

 the present insect is smaller, the colour of the elytra in all the specimens being a dark 

 silky green ; the thorax is much more transverse and less narrowed in front, also mere 

 minutely punctured, and the tarsi in the male insect only slightly dilated. Neither the 

 present species nor P. elongata have the typical appearance of P. pulchella; but 



