388 SEKEICOENIA. 



it in having the anterior spot on the elytra small and placed close to the lateral 

 margin, the elytra themselves more rapidly narrowing from the base and with the stria? 

 (the sutural one excepted) obsolete, and the median dilated portion of the coxal plates 

 more acutely produced. The allied P. stellatus differs from P. quadrinotatus in having 

 a small additional spot on the disc of each elytron near the base and the outer thoracic 

 carina obliterated. P. bolivianus, Cand., and P. seamotatus, Steinh., are allied South- 

 American forms. The insect is unknown to Dr. Candeze. 



4. Physorhinus cruciatus. (Tab. XVII. fig. 11.) 



Elongate, rather convex, shining, thickly clothed with long fine yellowish pubescence ; pitchy-brown, the head 

 flavous, the elytra brownish-testaceous, with the suture and a transverse median fascia rather narrowly 

 and indeterminately pitchy-brown, the abdomen in part and the antenna? reddish -brown, the legs 

 brownish-testaceous. Head thickly punctured ; antennae extending to about the basal fifth of the elytra, 

 joint 3 very short, slightly longer than 2. Prothorax about as long as broad, convex, gradually and 

 arcuately narrowing from near the base, the sides parallel behind ; the hind angles acute, bicarinate, the 

 inner carina oblique, the outer one straight: the surface closely, finely punctate. Elytra elongate, 

 narrowing from about the basal third, the apical margins feebly serrate ; thickly, finely punctate and 

 obsoletely striate, the striaa becoming obliterated towards the base, the sutural stria sharply defined. 

 Beneath closely punctured ; the median dilated portion of the posterior coxal plates obtusely angulate 

 behind. 



Length 13, breadth 3| millim. 



Hab. Mexico, Tapachula in Chiapas (Hbge). 



One example, probably a male. This insect approaches P. erythroeephalus ; but it 

 is more parallel, the thorax is much less narrowed in front, the elytra are more finely 

 and more closely punctured, with the apical margins feebly serrate, and the pubescence 

 of the upper surface is not so coarse. The elytra are brownish-testaceous, with the 

 suture and a transverse median fascia rather narrowly infuscate. 



5. Physorhinus sturmi. 



Physorhinus sturmii, Germ. Zeitschr. fur Ent. ii. p. 439 x ; Cand. Monogr. Elat. ii. p. 393 2 . 



Hab. Mexico 1 2 (Salle, ex coll. Sturm), Pinos Altos in Chihuahua (Buchan-Hepburn), 

 Toluca and Parada (Salle), % Jalapa (Edge). 



The elytra in this species are rufo-castaneous, with the suture usually piceous ; in 

 some specimens, however, the dark colour extends to the greater part of the surface. 

 The margins of the elytra are very feebly crenulate at the apex. 



Thirteen examples have been examined. 



6. Physorhinus frontalis. 



Physorhinus frontalis, Cand. Monogr. Elat. ii. p. 394 (nee Horn) \ 

 Hab. Mexico, Presidio (Forrer), Yucatan 1 (Gaumer). 

 I have seen ten examples of this species, varying considerably in size. It closely 



