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X. Further Descriptions of new Genera and Species of 
Phytopbaga. By J. S. Baty. 
[Read 3rd October, 1864. ] 
Fam. HISPIDE. 
Genus CHARISTENA. 
Corpus elongatum, angustatum, sepe filiforme, parallelum, sub- 
eylindricum. Caput inter oculos non productum, obtusum ; 
antennis subfiliformibus, inter partem inferiorem oculorum 
insertis, 1l-articulatis, articulis distinctis, quinque ultimis 
clavam gracilem sed distinctam formantibus ; epistomate brevi, 
basi elevata. Thorax subcylindricus, lateribus subrectis 
aut leviter rotundatis. Scutellum truncatum. Llytra thorace 
paullo latiora, elongata aut subelongata, lateribus rectis, 
parallelis, rarius minute serratis, apice rotundatis, semper 
serratis, angulis posticis obsoletis; supra convexa aut sub- 
cylindrica, utraque tricostata, interspatiis profunde bifariam 
punctatis. Pedes mediocres, modice robusti; ézbizs intermediis 
curvatis, apice in dentem brevem acutum introrsum productis ; 
tarsorum articulo basali duobus sequentibus angustiori ; 
unguiculis contiguis. 
Type Charistena ruficollis, Fab. 
This genus is nearly allied to Odontota ; its slender form, blunt 
head, distinct joints of antennez, and curved intermediate tibiz, 
are characters which taken conjointly will easily separate it from 
that genus. 
Sp. 1. Charistena rujficollis, Fabr. 
Syst. El. ii. 63; Oliv. Entom. vi. 778, pl. ii. fig. 34. 
Hab. Cayenne; Bahia. 
Var. A. Elytris utrisque linea longitudinali, postice abbreviata, 
fulva. : 
Collections of Rev. H. Clark, A. Fry, W. W. Saunders, and 
my own cabinet. 
This species is nearest, both in coloration and form, to Ch. 
Ariadne. In the present insect the base of the thorax is con- 
colorous with the disc, the general surface is also more coarsely 
punctured; the elytra are less’ cylindrical, being somewhat 
flattened above, and their coste more distinctly elevated; their 
apical margin is also more distinctly serrate. The much smaller size 
