584 PHYTOPHAGA. 



4. Malacorhinus antennatus. (Tab. XXXIII. fig. 19, <? .) 



Testaceous, the apical joints of the antennae, the tibiae, and tarsi black ; thorax impunctate ; elytra very finely 

 punctured, with a spot at the shoulder, another near the scutellum, and two, placed transversely, at the 

 middle of each, black. 



tf. The third, fourth, and fifth joints of the antennae strongly triangularly dilated, the sixth joint pear-shaped. 



2 . Antennae slender, filiform. 

 Length 2|-3 lines. 



c? . Head impunctate ; the frontal tubercles trigonate, strongly raised ; antennae half the length of the body, 

 the lower five joints obscure piceous or dark fulvous, the others black, the second joint short, the third and 

 following two joints triangularly flattened, the inner apical angles of each joint produced into a point, the 

 sixth joint pear-shaped, its base broad and emarginate, the terminal five joints slender and thin ; thorax 

 subquadrate, scarcely broader than long, the sides narrowed at the base, the surface impunctate, with an 

 obsolete depression near the anterior angles ; scutellum piceous ; elytra very closely and finely punctured, 

 testaceous, the apices often fulvous, each with four small black spots — two at the base and two at the 

 middle ; the last ventral segment emarginate in the middle, the emargination preceded by a deep oblong 

 fovea. 



Hab. Guatemala, Las Mercedes, Zapote, Mirandilla, Chiacam, Cubilguitz, Purula, 

 Senahu, Sinanja, Chacoj (Champion) ; Nicaragua, Chontales ( Janson) ; Panama, Bugaba, 

 Volcan de Chiriqui, San Feliz (Champion). 



The antennae in the female are simple and filiform, and with the third joint one half 

 the length of the fourth. 



5. Malacorhinus decem-punctatus. (Tab. XXXIII. fig. 18.) 



Testaceous or fulvous, the antennae, tibiae, and tarsi black ; thorax very finely punctured ; elytra each with 

 five black spotsj 2. 1. 2. 



<$ . Elytra with a deep longitudinal excavation at the lateral margin. 



Length 2-3 lines. 



Head impunctate ; antennae two thirds the length of the body, black, the first joint more or less testaceous or 

 fulvous, filiform, the third joint one half longer than the second ; thorax slightly broader than long, 

 distinctly narrowed at the base, the sides rather strongly deflexed in front and rounded before the middle, 

 the surface very minutely and rather closely punctured ; elytra more distinctly and more closely punctured 

 than the thorax, slightly widened towards the middle, testaceous or fulvous, with a spot at the shoulder, 

 another near the scutellum, one near the lateral margin at the middle, and two others (sometimes con- 

 nected) below the latter, placed obliquely transverse, black. 



Hab. Mexico, Ventanas (Forrer), Toxpam, Cordova, Vera Cruz (Salle), La Noria in 

 Sinaloa, Jalapa (Hbge) ; British Honduras, E. Hondo (Blancaneaux) ; Guatemala, 

 Mirandilla, Zapote, Capetillo, San Geronimo, Teleman (Champion) ; Nicaragua, Chon- 

 tales (Janson); Panama, Bugaba (Champion). 



The thorax in this species is very distinctly narrowed at the base, and its surface is 

 extremely finely punctured ; the elytral spots are often more or less confluent, and the 

 two posterior ones occasionally form a narrow transverse irregular. band. The fovea at 

 the sides of the elytra in the male is of large and elongate shape, and has a pointed 

 tubercle placed on the middle of its outer margin ; sometimes one or two other tubercles 

 are seen protruding from the upper margin. 



A specimen from La Noria is figured. 



