606 • PHYTOPHAGA. 



2. Metacoryna falvipes. (Tab. XXXIV. fig. 11.) 



Black ; the head, the basal joints of the antennae, the thorax, and legs fulvous ; elytra dark metallic blue, 



closely punctured. 

 S . Antennas with the eighth and ninth joints strongly swollen. 

 Length 2 lines. 



Hab. Mexico, Guanajuato (Salle). 



Much smaller than M. fulvicollis ; the five or six basal joints of the antennae fulvous 

 and much less transverse, the swollen joints proportionately smaller ; the elytra rather 

 more strongly punctured and slightly rugose ; the legs fulvous. 



3. Metacoryna guatemalensis. 



Black, the head, thorax, and legs testaceous ; the ninth joint of the antennae greatly swollen and widened, 

 pear-shaped ; elytra greenish-aeneous. 



Length 2 lines. 



The vertex of the head piceous, impunctate, the lower portion fulvous ; the frontal tubercles very distinct, 

 broadly trigonate ; labrum piceous ; antennae black, the two lower joints testaceous beneath, the second and 

 third joints nearly equal, the following joints more or less triangularly widened, the ninth joint greatly 

 swollen and enlarged, its upper surface deeply channelled, the terminal joint elongate and pointed ; thorax 

 about twice broader than long, the sides rounded at the middle, the posterior angles distinct, somewhat 

 obliquely shaped at the sides, the surface impunctate, shining, testaceous ; elytra extremely finely and 

 sparingly punctured, the punctures placed in indistinct rows which are a little more plainly marked near 

 the suture, the apices almost impunctate. 



Hab. Guatemala, Calderas 6000 feet (Champion). 



In M. guatemalensis the ninth antennal joint only is strongly enlarged : this is the 

 only structural difference I can find between this and the preceding species, and it is 

 not sufficient to justify its separation from the genus. 



SCELIDA. 



Scelida, Chapuis, Gen. Col. xi. p. 184 (1875), 



Only a single species from Guatemala was known to the author of this genus ; we 

 are now acquainted with seven others. Scelida contains species of comparatively large 

 size, nearly all of which are of metallic colour. The genus is characterized by the 

 nearly subquadrate thorax, the unarmed tibiae, and the open anterior coxal cavities, as 

 well as by the narrow elytral epipleurse which extend nearly to the apex. So far as at 

 present known Scelida is confined to Central America, where it ranges from Mexico to 

 the State of Panama. 



l. Scelida viridis. (Tab. xxxiv. fig. 12.) 



Scelida viridis, Jac. P. Z. S. 1879, p. 787 \ 

 Eab. Mexico 1 (coll. Jacoby). 



This species, of which a male and a female specimen are contained in my collection, 



