LUDIUS. 503 



5. Ludins subopacus. 



Elongate, rather narrow, subopaque ; pitchy-black, piceous, or castaneous-brown, the antennae black or brown, 

 the legs brown or obscure testaceous ; above and beneath thickly clothed with short, fine, decumbent, 

 yellowish-cinereous pubescence. Head closely, rather coarsely punctate ; antennae extending to fully two 

 joints beyond the hind angles of the prothorax in the male, a little shorter in the female, rather slender, 

 joints 4-11 moderately serrate, 3 considerably longer than 2, the two together as long as 4, 11 appendi- 

 culate. Prothorax convex, as long as broad, the sides gradually converging from the base and a little 

 rounded in front in the male, more rounded in the female, the marginal carina visible from above towards 

 the base only ; the hind angles long, sharply and obliquely carinate ; the surface densely, rather coarsely 

 punctate, with indications of a smooth central line towards the base. Elytra three times the length of 

 the prothorax, narrowing from a little below the base, more parallel in their basal half in the female, the 

 apices narrow and conjointly rounded ; rugulose and closely, finely punctate, subgranulate at the base, 

 the sutural stria distinct, the others faintly indicated. Beneath thickly and finely, the prosternum sparsely 

 and more coarsely, punctured ; prosternal process extended in the plane of the prosternum to the ante- 

 apical tooth ; intercoxal portion of the mesosternum V-shaped, gradually declivous ; posterior coxal plates 

 broadly, subangularly dilated opposite the point of insertion of the femora. 



Length 12^-141, breadth 3f-4 millim. ( tf $ .) 



Hab. Guatemala, Sabo and Sinanja in Vera Paz (Champion); Panama, Volcan de 

 Chiriqui (Champion). 



Ten specimens, one only of which is from Chiriqui. Larger and more elongate than 

 L. snbsericeus, the thorax less densely and not so coarsely punctured, the upper surface 

 less opaque, the pubescence sparser, the third joint of the antennae considerably longer 

 than the second. 



6. Ludius breviusculus. (Tab. XXII. fig. 8, s .) 



Comparatively short, rather narrow, moderately shining ; pitchy-black, the antennse and legs obscure ferru- 

 ginous ; somewhat thickly clothed with short, decumbent, fulvous pubescence. Head closely, coarsely 

 punctate ; antennae extending to about two joints beyond the base of the prothorax, joints 2 and 3 very 

 short, equal, together not nearly so long as 4, 4-11 moderately dilated and serrate, 11 appendiculate. 

 Prothorax convex, slightly broader than long, the sides almost straight and very gradually converging 

 forwards, rounded in front, the posterior portion only of the marginal carina visible from above : the hind 

 angles long and sharply carinate ; the surface closely, coarsely punctate, canaliculate from the middle 

 to the base. Elytra two and one-half times the length of the prothorax, narrowing from the middle, 

 conjointly rounded at the apex ; rather deeply punctate-striate, the interstices almost flat and thickly, 

 rugulosely punctate. The prosternum coarsely and rather sparsely, the propleurae coarsely and very 

 sparsely, and the rest of the under surface closely and finely, punctured ; prosternal process extended in 

 the plane of the prosternum to the ante-apical tooth ; intercoxal process of the metasternum V-shaped, 

 depressed, gradually declivous; posterior coxal plates rather broadly widened in their inner third, becoming 

 narrow outwards. 



Length 9|, breadth 2f millim. ( <$ .) 



Hob. NiCAKAGUA, Chontales (E. M. Janson). 



One example. Smaller and less elongate than any of the other Central- American 

 species of the genus, and with the elytral striae more sharply defined. L. breviusculus 

 somewhat resembles L. physorhinus, but it is much more parallel than that insect, and 

 has shorter elytra and the prosternal process not declivous. The second and third 

 joints of the antennae are very short. 



