EUXEMA. 3 
one on either side, from its anterior margin, proving it without doubt to be the basilar 
subsegment of the ligula, from which these organs always arise. His third segment, or 
lanquette, to which he has erroneously assigned them, never bears these organs; it 
answers to the apical subsegment of the ligula and is placed sometimes on the anterior, 
sometimes on the dorsal surface of the basilar subsegment. 
The Hispide are separable into two primary sections, dependent on the relative 
positions of the mentum and ligula; in the first the ligula is placed at the apex of the 
mentum, in the second on its dorsal surface. 
Section I. Ligula placed at the apex of the mentum. _ : x 
Subsection 1. Sutwral line between the two segments obsolete. 
This subsection will include the new genus described below; the other genera 
belonging to it are Old-World forms. 
EUXEMA. 
Corpus suboblongatum, dorso modice depressum. Caput exsertum ; antennis filiformibus, articulis cylindricis, 
primo oblongo, paullo incrassato, secundo quam ille paullo breviori, tertio elongato; ligula elongata, ad 
basin et ad apicem constricta, cum mento intime connexa, linea suturali inter segmentos obsoleta. Thoraa 
transversus, margine antice antrorsum valde lobato. Elytra oblonga, punctato-striata. Unguicali divaricati. 
One species from the State of Panama will constitute this genus. 
1. Euxema insignis. (Tab. I. fig. 1.) 
Subelongata, modice convexa, dorso depressa, metallico-cerulea, nitida; antennis nigris apice extremo piceis, 
 tibiis tarsisque piceo-fulvis; thorace transverso-convexo ; lateribus reflexis, a basi apicem versus oblique 
convergentibus; margine apicali medio in lobum obtusum producto, utrinque sinuato, nec non prope 
angulum lateralem tuberculo brevi setifero instructo; disco levi, basi punctato, utrinque intra marginem 
excavato ; elytris oblongis, regulariter punctato-striatis. 
Mas. Abdominis segmento anale obtuse rotundato, leviter bisinuato. 
Fem. Abdominis segmento anali rotundato, integro. 
Long. 3 lin. 
Hab. Panama, Volcan de Chiriqui 8000 feet (Champion). 
Antenne filiform, nearly half the length of the body, the third joint longer than the 
first and second united, black, the last three joints piceous. Thorax transversely 
convex; sides reflexed, obliquely converging from base to apex, more quickly rounded 
" near the anterior angles, the latter obtuse; anterior margin deeply sinuate on either 
side and armed near the outer angle with a small setiferous tubercle, visible only 
under a strong lens; medial portion produced anteriorly into a strong subangulate lobe, 
which extends over and partially covers the head; upper surface excavated just within 
the outer margin, finely punctured at the base; disc smooth, impunctate. Scutellum 
pentangular, its apex acute. Elytra oblong, broader than the thorax ; sides subparallel ; 
apex broadly rounded, apical margin minutely serrulate ; disc distinctly punctate-striate. 
aa 2 
