642 CUCUJIDE. 
These insects appear to be of extreme rarity: we have received only four individuals 
to represent three species, and Casey says that Scalidia linearis is “ quite rare.” It is 
not, therefore, a matter for surprise that much confusion should exist. At the same 
time I think it only proper to again express my strong objection to establishing 
new genera in two or three lines (or even less), and without assigning any species 
to them. This course has been shown by experience to give rise to the utmost 
confusion. 
1. Syssitos rostratus, sp.n. (Tab. XVI. fig. 5.) 
Elongatus, subcylindricus, ferrugineus, anterius picescens, nitidus ; capite canaliculato, anterius utrinque linea 
curvata insculpto; antennis latis, extrorsum latioribus ; subtiliter punctatus, elytris leviter striato- 
punctatis. 
Long. 7 millim. 
Hab. Panama, Volcan de Chiriqui (Champion). 
Antenne thicker towards the apex, the penultimate joints strongly transverse, the 
terminal joint large, laterally compressed, the extremity broadly rounded. Head 
narrowed towards the front, sparingly punctate. Eyes elongate longitudinally. Thorax 
very elongate, the sides straight, but a little convergent from apex to base, the hind 
angles minute, definite, rectangular. Elytra elongate, with a deep sutural stria and 
another stria approximate to it, which is not complete but composed of punctures ; 
outside this there are series of fine punctures; the sutural stria becomes more deeply 
impressed at the apex and curves round to the outside, so that a somewhat explanate 
margin is formed at the tip. Legs rather long; tarsi elongate. 
Only one example was obtained of this remarkable insect. 
2. Syssitos longiceps, sp. n. 
Subcylindricus, castaneus, nitidus, capite canaliculato, anterius breviter bisulcato ; antennis crassis ; subtiliter 
punctatus, elytris leviter striatis. 
Long. 53 millim. 
Hab. Guatemata, Panzos (Conradt), Torola (Champion). 
Antenne thick, the joints bead-like but transverse, the first joint but little longer 
than the others, the second smaller than any of the rest. Head elongate, finely 
punctate, in front finely scabrous, the side with an elongate, very fine, raised margin, 
the middle deeply canaliculate, and on each side in front a short, straight channel, the 
clypeus in front of these structures very deeply foveolate. Eyes transverse, moderately 
large. Thorax elongate, cylindrical in front, so that there are no prominent anterior 
angles, finely margined at the sides, near the base a little narrowed, the posterior 
angles minutely prominent, the base with a broader but more depressed margin, the 
surface moderately coarsely, not closely, punctate. Elytra elongate and narrow, each 
with four striz and a series of punctures in place of a fifth stria; these strie do not 
