444 RHYNCHOPHORA. 
In this insect the declivous mesosternum (which has been injured in the type by the 
pin) is slightly depressed in the middle anteriorly and has a compressed prominence 
on each side in front, these prominences representing the anterior portions of the acute 
horseshoe-shaped ridge present in some very nearly allied forms belonging to the 
genus Phyrdenus, Lec. ‘The upper surface of the body and the legs are densely 
squamose and setose. The prothorax is canaliculate down the middle and feebly 
trinodose on each side of the groove. The alternate elytral interstices are slightly 
raised. The femora are unarmed. The tarsal claws have a short stout tooth. The 
rostrum is gibbous at the base. C. (Cyphorhynchus) luridus, Kirsch, from Peru, is an 
extremely closely allied form. 
ZEPALIUS, gen. nov. 
Rostrum moderately long, curved, the scrobes descending to the lower limit of the eyes, but not contiguous 
beneath ; antenne inserted towards the apex of the rostrum in both sexes, the funiculus 7-jointed, rather 
loosely articulated, the club oblong-ovate, nearly as long as the preceding five joints united, the sutures 
distinct; eyes lateral, coarsely facetted ; prothorax with prominent ocular lobes, much narrower than the 
elytra; scutellum rounded, moderately large; elytra with ten rows of punctures ; prosternum rather long, 
with a deep rostral canal; anterior and intermediate coxe somewhat widely separated ; mesosternum ~ 
concave, with a compressed lamelliform prominence on each side in front of the coxe; metasternum 
concave and declivous in the middle in front, the episterna rather broad; ventral segments 3 and 4 
together about as long as 2, all the sutures distinct; legs elongate; femora dentate; tibize unguiculate at 
the outer apical angle, sinuate within; tarsi with joint 3 bilobed, the claws obtusely dilated in their basal 
half; body elongate, squamose. 
A single species is referred to palius. It is closely related to Conotrachelus, 
though very different in general facies. The mesosternal lamelle are very prominent 
(being more produced anteriorly than in C. setosus), and the tarsal claws are obtusely 
dilated at the base (less angularly widened than in (@. anthonomoides), these characters 
distinguishing the insect from all the forms here included under that genus. 
1. Aipalius chiriquensis, sp.n. (Tab. XXII. figg. 1, la, }, 2.) 
Elongate, dull, black, the antenne and the tips of the tarsi reddish; somewhat thickly clothed with small 
brown scales, the vestiture becoming denser (and in one specimen ferruginous) on a large patch on the 
apical half of the elytra, the upper surface and legs with intermixed very short, blunt, semierect, setiform, 
fuscous or whitish scales, the scutellum ochreo-squamose. Head closely, densely punctate, feebly foveate 
between the eyes ; rostrum about as long as the head and prothorax, sulcate laterally, rugulosely punctate 
to near the tip in the d, more shining and much smoother in the . Prothorax a little broader than 
long, rather convex, rounded at the sides anteriorly, constricted and narrowed in front and slightly 
narrowed behind, the base bisinuate; densely, finely punctate. Elytra rather elongate, about one-third 
wider than the prothorax, parallel in their basal half, sinuate at the base ; seriate-punctate, the interstices 
rugulose and granulate, 3, 5, and 7 somewhat raised, 3 and 5 sinuate. Beneath rather coarsely punctate. 
Femora sharply unidentate. 
Length 54-614, breadth 23-22 millim. 
Hab. Panama, Volcan de Chiriqui 2500-4000 feet (Champion). 
Three specimens. 
