CEPHALODONTA. 4] 
15. Cephalodonta obscurovittata. 
Elongata, dorso subdepressa, flavo-fulva, nitida, pleuris anguste piceis; antennis gracilibus, apice pallide-piceis ; 
oculis nigris; thorace transverso, lateribus vix pone medium angulatis, dorso cylindrico, sat crebre 
punctato ; elytris parallelis, ad apicem vix ampliatis, apice obtuse rotundatis, angulo externo spina com- 
pressa, retrorsum spectante, armatis; punctato-striatis, sutura, nec non interspatio quarto, costatis; callo 
humerali lateraliter producto, acuto; vitta subsuturali alteraque submarginali, a basi apicem versus 
extensis, postice fere obsoletis, metallico-violaceis. 
Long. 4 lin. 
Hab. Nicaragua, Chontales (Belt, Janson). 
Front smooth, impressed with a longitudinal groove ; eyes black. Antenne slender, 
filiform, very slightly thickened at the apex; joints cylindrical, the second more than 
twice the length of the first, the third rather shorter than the second. Thorax broader 
than long; sides straight and parallel at the base, angulate behind the middle, thence 
obliquely converging to the apex, the anterior angle armed with a stout oblique tooth; 
upper surface transversely convex, excavated transversely on the hinder disc, impressed 
with large foveolate punctures, crowded on the sides, less closely placed on the middle 
disc. Hlytra broader than the thorax; parallel, slightly dilated near the hinder angle, 
the latter armed with an acute flattened spine, the apex of which is produced directly 
backwards ; disc of each elytron with ten rows of large deep punctures; the suture, and 
the fourth interspace, costate ; humeral callus laterally produced, acute ; the two discoidal 
vittee will in a series of specimens probably be found to vary greatly both in extent and 
depth of colouring: in the two individuals before me the submarginal one is distinct 
from the basal margin to the middle of the disc, where it terminates, whilst the 
discoidal is only strongly coloured at its extreme base (for the rest of its course, which 
extends nearly to the apex of the elytron, it is very faint and only visible in certain 
lights). Legs slender, elongate. 
16. Cephalodonta posticata. 
Subelongata, parallela, apicem versus paullo ampliata, dorso subdepressa, flavo-fulva, nitida; antennis flavis, 
apice pallide-piceis ; oculis nigris; thorace transverso, lateribus pone medium angulatis, disco transversim 
convexo, crebre foveolato-punctato; elytris ante medium parallelis, ad apicem paullo ampliatis, apice 
obtuse rotundatis, angulo postico in laminam compressam trigonatam, apice acutam, producto ; sat profunde 
seriatim punctatis, sutura nec non interspatiis secundo et quarto elevatis; callo humerali lateraliter pro- 
ducto, acuto; vitta submarginali, a basi ad fere medium extensa, basi ampliata et ad marginem adfixa, calli 
humeralis apicem amplectente, altera prope scutellum, brevi, fasciaque supra spinam posticam posita, 
intus ad disci medium extensa, metallico-violaceis ; pedibus gracilibus, elongatis. 
Long. 34 lin. 
Hab. Panama, Bugaba (Champion). 
_A single specimen. Head and antenne as in C. obscurovittata; the thorax more 
transverse, its disc less deeply impressed at the base, and more closely punctured on 
the middle than in that species. Elytra broader in proportion to their length than in 
C. obscurovittata; the posterior angle produced laterally into a flattened triangular 
BIOL. CENTR.-AMER., Coleopt., Vol. VI. Pt. 2, May 1885. ff 
