CHARISTENA. 45 
subconico, sat crebre foveolato-punctato, lateribus leviter angulatis; elytris fere parallelis, postice vix 
ampliatis, apice obtuse rotundatis, angulo postico dente acuto, ad apicem nigro, armato ; seriatim punctatis, 
interspatio quarto modice costato, callo humerali apice spina valida elongata, lateraliter producta, nigra, 
armato. 
Long. 33 lin. 
Hab. Nicaraaua, Chontales (Belt). 
Antenne slender, filiform, more than half the length of the body; two lower joints 
subovate, equal, the third nearly as long as the preceding two united. Thorax not 
broader than long, subconic; sides straight and parallel from the base to the middle, 
thence obliquely converging and sinuate to the apex, the anterior angle produced ante- 
riorly into a strong subacute tooth ; upper surface subcylindrical, transversely grooved at 
the base, closely foveolate-punctate. Elytra parallel, slightly dilated posteriorly ; apical 
margin obtusely rounded, entire, the posterior angle armed with a strong flattened acute 
tooth, the apex of which looks directly backwards; upper surface with ten, at the 
extreme base with eleven, regular rows of punctures; fourth interspace from the suture 
moderately costate; humeral callus laterally produced, and armed with a very long 
acute black spine, the apex of which extends directly outwards. 
The long humeral spine renders this species one of the most remarkable of the whole 
genus. Unfortunately both the specimens before me are very imperfect. 
Section II. Basal segment of the ligula arising from the dorsal surface of the mentum. 
Section 1. Antenne 10-11-jointed, the five upper joints distinctly separable from 
each other. 
+ Interocular space not produced anteriorly ; antenne 11-jointed, 
CHARISTENA. 
Charistena, Baly, Trans. Ent. Soc. 1864, p. 253 ; Horn, Trans. Amer. Ent. Soc. 1883, p. 298. 
The above genus, established by myself for the reception of a small group of species 
from Northern and Central America, has been united by Von Harold, in his Catalogue, 
with Chalepus ; it is, however, distinctly separated by the non-prominent interocular 
space, and, as pointed out by Dr. Chapuis, by the curved intermediate tibie. 
1. Charistena bellula. 
‘Charistena bellula, Baly, Trans. Ent. Soc. 1864, p. 253°. 
Hab. Muxico, Playa Vicente (Sallé).—Cotomsia, Bogota, Magdalena River? (coll. 
Baly, type). . | 
9. Charistena elegantula. 
Charistena elegantula, Baly, Trans. Ent. Soc. 1864, p. 254°. 
Ow 
