1883.] M. JACOBY ON NEW SPECIKS OF BEETLES. 403 



widened and flattened, simple in the female ; all the joints covered 

 with fine puljescence. Thorax square-shaped, the sides rounded 

 and widened towards the middle ; surface with an obsolete fovea in 

 front of the anterior and posterior margin, closely and finely 

 punctured. Scntellum large, as broad as long, fulvous. Elytra 

 nearly parallel, convex, their last third rather abruptly declined ; 

 surface punctured as in the preceding species, fulvous ; each elytron 

 with a round transverse black spot immediately below the middle. 

 Underside and legs finely pubescent. 



Uab. Nguru Mountains, East Central Africa. Collection Jacoby, 



Pachytoma, Clark. 



8. Pachytoma gibbosa, sp. nov. (Plate XLV. fig. 6.) 

 Elongate, widened posteriorly, piceous below ; head, thorax, 



scntellum, and first three joints of the antennae flavous ; elytra 

 ferruginous, very closely and finely punctured. 



Length 75-8 lines. 



Hab. Old Calabar (^Rutherford) . 



Head with a fovea between the eyes, scarcely visibly punctured. 

 Antennoe short, robust, black, the three basal joints flavous. Thorax 

 twice as broad as long, the sides rounded, the angles obtuse, surface 

 extremely minutely punctured. Scntellum trigonate, its apex ob- 

 tusely rounded. Elytra convex, widened at the middle, narrowed 

 towards the base and apex, ferruginous, more distinctly but as 

 closely punctured as the thorax. Underside and legs piceous ; tibiae 

 distinctly channelled ; claws bifid. 



Two specimens in my collection. 



In its general appearance and shape this species resembles greatly 

 several insects of the genus Oides, from which the elytral epipleurae 

 extending to the posterior angle will at once distinguish it. Besides 

 this character, all the others peculiar to the present genus are present. 

 P. yibbosa seems to be the largest species at present described. In a 

 short monograph of the genus by Dr. Kursch (Berlin, eut. Zeitsch. 

 1881) I find a species referred to under the name of P. (jigas, 

 lUig. This is probably a mistake, and refers to P. gigantea, Illig. 



Mesodonta, Baly. 



9. Mesodonta transverso-fasciata, sp. nov. (Plate XLV. 

 fig. 5.) 



Elongate-ovate, widened behind ; black below ; basal joint of the 

 antennae, the thorax, and the scntellum obscure flavous ; elytra 

 granulose-puactate, green, subopaque, a transverse band behind the 

 middle obscure flavous. 



Length 6 lines. 



Hab. West Africa (Rutherford). 



Head rugose-punctate, black, lower part of face flavous. Antennae 

 about half the length of the body, the fifth to the ninth joints 

 dilated and gradually shortened, the tenth trigonate, short, eleventh 

 joint elongate. Thorax about twice as broad as long, the posterior 

 margin slightly sinuate at each side, the latter narrowed from base 



