RHYSSOMATUS. 335 
is subconical, obliquely strigose, and finely carinate; the eyes are contiguous ; and 
the rostrum is rugulosely punctate and pluri-carinate in the male, and smoother in the 
female. 
18. Rhyssomatus rufus. (Tab. XVII. fig. 24, ¢, head and rostrum.) 
Rhyssomatus rufus, Fabr. in Schénh. Gen. Cure. iv. p. 369’; Schénh. op. cit. viii. 2, p. 11. 
Very like 2. subrufus, but smaller, the eyes more approximate, the head distinctly foveate between them; the 
rostrum less curved and much shorter, not depressed at the base above, not longer than the head and 
prothorax, in the g deeply punctato-sulcate and 5-carinate, and in the Q longitudinally strigose, in its 
basal half, and sparsely punctate thence to the apex, the antenne in both sexes inserted about the 
middle; the prothorax and elytra as in J. subrufus; the tibial claw less elongate ; fifth ventral segment 
foveate in the ¢. 
Length 44-55, breadth 21-3 millim. (¢ 9.) 
Hab. Mexico”, Orizaba! (Mus. Holm.), Oaxaca, Tapachula (Hége); Brrrisn Hoy- 
puRas, Belize (Blancaneauz). 
Six specimens, agreeing with the type ( ¢ ), which I have seen. 
19. Rhyssomatus rufescens, sp.n. (Tab. XVII. figg. 25, 25, ¢.) 
Oval, shining, rufo-piceous, the antenna, the anterior tarsi, the intermediate and hind legs, and the elytra in 
great part, rufous, very sparsely pubescent. Head densely, rugosely punctate, the eyes contiguous; 
rostrum very stout, slightly longer than the prothorax, curved above (as seen in profile), rugulosely 
punctate, pluri-carinate in its basal half, the antennz inserted before the middle. Prothorax transverse, 
subconical, constricted in front, closely, obliquely strigose and also very finely punctate, the disc with a 
fine median carina before the middle. Elytra at the base much wider than the prothorax, subcordate ; 
punctato-sulcate, the punctures distant one from another, all the interstices narrowly costate and slightly 
rugulose. Mesosternum slightly protuberant between the coxe. Fifth ventral segment broadly and 
shallowly foveate in the middle. Legs moderately stout; intermediate and posterior tibie angulate 
externally and ciliate thence to the apex; tarsal claws subapproximate. 
Length 42, breadth 2} millim. (¢.) 
Hab. Panama, Volcan de Chiriqui 3000 feet (Champion). 
One specimen. ‘The chief characters of this species are the short, stout, rugulose 
rostrum, the contiguous eyes, the obliquely strigose, short, subconical prothorax, and 
the punctato-sulcate elytra, the latter with all the interstices narrowly costate, the 
ridge on 2, 4, and 6 not quite reaching the base. 
20. Rhyssomatus ovalis. 
Rhyssematus ovalis, Casey, Ann. N. York Acad. Sci. vi. p. 443°. 
Oval, moderately shining, rufo-piceous, almost glabrous. Head closely punctate, faintly foveate between the 
eyes above, the latter separated by about the width of the rostrum ; rostrum moderately stout, feebly 
curved, a little longer than the prothorax, shining, sparsely punctate, the antenne inserted slightly 
before the middle. Prothorax strongly transverse, somewhat rounded at the sides, narrowing forwards, 
and constricted in front; closely, confluently punctate, except upon the narrow, smooth, central line, 
the punctures towards the sides and apex confluent and separated by narrow, oblique, raised lines. 
FElytra a little wider than the prothorax, oval; punctato-sulcate, the punctures oblong in shape, the 
interstices closely punctate, and convex throughout. Legs short, rather stout; tibie widened in their 
