40 RHYNCHOPHORA. 
the form of the back of the head at its junction with the neck that we must look to 
for the purposes of generic synthesis. Zmetogonus appears to be closely allied to 
Abrentodes as well as to Episphales, but to be distinguished by the peculiar projection 
behind the eyes that suggested the name applied to the genus. 
1. Tmetogonus chiriquensis. (Tab. III. fig. 2.) 
Tmetogonus chiriquensis, Senna, Notes Leyden Mus. xvi. p. 225’. 
Hab. Panama, Chiriqui!?. 
Dr. Senna has kindly given me the opportunity of examining and figuring the unique 
type of this species. 
UBANIUS. 
Ubanius, Senna, Notes Leyd. Mus. xvi. p. 221 (1895). 
This genus has been recently proposed by Dr. Senna for the single species mentioned 
below. 
1. Ubanius zneus. (Tab. II. fig. 4.) 
Ubanius eneus, Senna, Notes Leyd. Mus. xvi. p. 222". 
2. Niger, nitidus, elytris lineolis numerosis flavis ornatis; prothorace elongato, polito; elytris seriatim sat 
fortiter punctatis, interstitiis leviter convexis. 
Long. 32 millim. 
Hab. Mexico !, Puebla (Sallé); Panama, Chiriqui!. 
The prorostrum is comparatively short, the antenne being inserted at a distance in 
front of the eyes; they are short and stout, with five or six of the basal joints glabrous 
and shining, the terminal joint very acuminate ; the metarostrum is black, very shining, 
very deeply depressed along the middle, the vertex not divided. The elongate thorax 
is vaguely rugose on the anterior part, but has no other sculpture; it is black, 
polished. Elytra with a single stria at the suture well-marked and impunctate, the 
outer series consisting of rather small punctures, the longitudinal interstices a little 
convex, more elevated behind; on each wing-case there are nine or ten short yellow 
lines. The under surface is black and shining, that of the head and metarostrum 
with two series of large foveoles; the prosternum is feebly transversely striate. 
Abdomen rather short, with vague traces of the basal part being composed of three 
consolidated segments. 
We have received only one example of this species. It is of the female sex, but the 
male has been described by Dr. Senna!; by his kindness I have been able to compare 
our female with his type of that sex. The male is in the collection of the Brussels 
Museum, but its habitat is unknown. 
