56 SERRICOENIA. 



steel-blue ; the lateral carina of the basal segment has a very slight sinuosity in the 

 middle. 



10. Paradomorphus corrugatus. 



^Eneus, elytris obscure rufo-eupreis ; capite crebre rugoso, antice convexiusculo ; tborace antice bene convexo, 

 fortiter rugoso, punctato ; elytris depressis, crebre asperatis, regione suturali obsolete parce flavo-griseo- 

 pubescente ; corpore subtus parce brevissime flavo-griseo-pubescente. 



Long. 3-3i lin. 



Hab. Mexico, Juquila, Toxpam (Salle). 



The head in some examples is finely, in others coarsely, rugose ; this is no doubt a 

 sexual distinction. The thorax is very convex ; the lateral impression is not deep, and 

 does not extend to the anterior angles (it is scarcely visible from above), and in some 

 lights there is an indication of a longitudinal median impression ; the posterior ridge 

 is very distinct, curved. The elytra have the subcosta only very slightly marked in the 

 female, more distinct in the male ; the apex is acuminate, finely serrate. The pro- 

 sternal chin-piece is gently arcuate. The prosternum is closely and not very finely 

 rugose ; the intercoxal process is rather flat and pubescent, very slightly narrowed 

 posteriorly, emarginate at the apex. The metasternum has a fine impressed median 

 line ; the episterna are finely punctured and pubescent. The abdomen is moderately 

 closely punctured, the basal segment at the sides and at the intercoxal process very 

 closely so ; the latter is obtusely angular. The lateral carina of the basal segment is 

 rather strongly and widely sinuate about the middle. 



11. Paradomorphus persimilis. 



Praecedenti similis et affinis, differt tamen elytris postice magis acuminatis ; processu prosfcernali ad apicem 



emarginato, angulis paullo elevatis. 

 Long. 3-3| lin. 



Hab. Mexico, Chilpancingo in Guerrero (Hoge). 



I separate this species with doubt from the preceding. It only differs in having a 

 more decided longitudinal impression on the thorax. The elytra are rather more 

 acuminate, and have the subcosta very distinct. The prosternum is more closely punc- 

 tured, and the angles at the apex are slightly raised. 



12. Paradomorphus complexus. 



Subdepressus, seneo-cuprascens, nitidus, tborace postice elytrisque olivaeeo-virescentibus ; capite sat crebre 

 punctato, medio canaliculato-impresso ; thorace parum convexo, punctis transversis crebre aspersis, 

 meuio leviter bi-impresso ; elytris creberrime asperatis, apiee parum serrulate 



Long. 4 \ lin. 



Hab. Nicakagua, Chontales (Belt). 



The head has the punctures fine, but distinct, and slightly separated from each 

 other; the median longitudinal impression is slightly narrowed at the middle of the 



