BY W. MACLEAY, ESQ., F.L.S. 177 



337. — Temnoplectron tibiale. n. sp. 

 Length 2| lines. 

 Black, nitid, convex and nearly round. Head almost vertical, 

 and finely punctate with the clypeus angularly emarginated at the 

 apex. Thorax transverse, very finely punctate, emarginate in 

 front, slightly rounded behind, broader at the middle than at the 

 apex, and parallel sided from the middle to the base. Elytra of 

 the width of the thorax at the base, rounded at the apex, not 

 longer than the breadth, very finely punctate and marked with 

 seven very fine strias — the external one abbreviated, — on each 

 elytron. The fore tibite are almost rectangularly bent inwards 

 near the apex, and at the external angle formed by the bend there 

 is a strong tooth, with two small teeth above. The four posterior 

 tibice are slightly curved, enlarged towards the apex, and laterally 

 compressed. The antennae and palpi are red. 



MERODONTUS. n. gen. 



Body broadly ovate. Head flat, transverse, rounded behind, 

 and emarginate in front, with three minute teeth along the an- 

 terior edge of the clypeus on each side of the emargination. 

 Eyes only visible through a naiTow slit in the hind margin of the 

 head. Mentum narrow and emarginate. Labial palpi with the 

 last joint obconic, and about half the length of the penultimate. 

 Thorax transverse, subconvex, slightly rounded at the base, and 

 emarginate in front, with the anterior angles much enlarged. 

 Elytra not covering the pygidium, and flat on the back, with the 

 sides and apex deep and vertical. Anterior legs rather short, 

 with the tibi^ wide at the apex and minutely tridefttate, and the 

 tarsi very short ; intermediate, long with the tibiae strongly triden- 

 tate ; posterior, very long, with the thighs thick and furnished in 

 one sex with a large acute spur near the apex on the under side, 

 and with the tibiee very much arcuated. Pygidium perpendicular. 



The insect on which this genus is formed has a strong gene- 

 ral resemblance to the genus Sisyphus, the deep epipleurse of the 

 elytra clearly indicate, however, its true position to be with the 

 group named Minthophilidce by Lacordaire. 



