SEBRICOKNIA. 173 



deep ; the alternate interstices are more convex towards the apex than the others, and 

 are interrupted by numerous small rugose impressions, the sublateral one appearing as 

 a line of elongate shining swellings ; the lateral incrassate margin is thicker than in 

 P. polymita, and polished*; the apex of each elytron is obliquely truncated, the outer 

 angle dentiform. The antennae are green, except the basal joint, which is coppery. 

 The femora are coppery (viewed from below), purple at the extreme apex, and with 

 some green and golden just before the apex. The metathoracic episterna are closely 

 and comparatively finely punctured and pubescent. The apical segment of the abdomen 

 is also finely punctured and pubescent, with a bare, more coarsely punctured median 

 line. 



Psiloptera monilis (p. 8). 



To the localities given, add : — Mexico, Jalapa in Vera Cruz {Morrison, Hoge), 

 Actopan (Edge). 



The localities Escuintla and Costa Rica should be transferred to P. guatemalensis. 



3(a). Psiloptera guatemalensis. 



Lampetis guatemalensis, Thorns. Typi Bupr., Append, p. 12 l . 



Hab. Guatemala l , Coban (Salle), Escuintla (Champion), Chimaltenango (Conradt) ; 

 Costa Rica (Van Patten). 



If the examples from Salle's collection bearing this name are correctly determined 

 (and they appear to be so), I think it very doubtful whether P. guatemalensis should 

 be separated from P. monilis. The specimens, however, from the above-mentioned 

 localities appear to be smoother than the ordinary form of P. monilis. 



Psiloptera chalconota (p. 9). 



To the Mexican localities given, add : — Amula 6000 feet and Iguala, both in Guerrero 

 (H. H. Smith). 



Psiloptera hirtomaculata (p. 10). 



To the locality Panama, add : — Tole (Champion). 



Psiloptera dilaticollis (p. 11). 



To the Mexican localities given, add : — Villa Lerdo in Durango (Hoge). 



* The specimens of P. obscura (Th.) have this margin more or less transversely finely wrinkled. 



