38 Mr. G. C. Champion's Revision of the Mexican 



margin) mfo-testaceous. The prothorax of the male is 

 broad and transverse, and dilated at the sides into a broad, 

 thickened, blunt tooth in front of the deep median notch ; 

 that of the female has the lateral margins feebly sinuate, 

 and angularly dilated anteriorly, and the hind angles 

 acute. The elytra are parallel and rather coarsely, densely 

 punctate. The three tarsi have one of the claws cleft at 

 the tip in the male. The second antennal joint is a little 

 longer than usual. The eyes are small, slightly larger in 

 the male. 



25. Discodon minusculum. 



Silis minuscula, Gorh., Biol. Centr.-Am., Coleopt. iii, 2, 

 p. 305. 



Hah. Guatemala, Pacific slope. 



This is a form of D. pavxillum with a sharply and broadly 

 nigro-vittate prothorax, the front of the head whitish, 

 and the basal half of the femora testaceous. The male 

 characters are similar, and the secotid antennal joint is 

 rather long. D. minusculum comes very near the var. 1 

 of D. pauxillum, from the Atlantic slope ; but as the insect 

 seems confined to the opposite side of Guatemala, it is 

 here retained as distinct. D. minusculum is represented by 

 three males and five females in the " Biologia " collection. 



Section II. 



26. Discodon podabroides. 



Discodon podabroides, Pic, Melanges exot.-entom., fasc. ii, 

 p. 15 {^) (1912). 



Elongate, narrow (^), broader ($), rather shining, finely cinereo- 

 pubescent; nigro-piceous or black, the sides of the head in front, 

 the base of the mandibles, the margins of the prothorax narrowly 

 (except at the middle), the outer limb of the elytra below the 

 shoulder, the outer margins of the abdomen, and the tarsal claws 

 testaceous or yellow. Head in (J broad, subtriangular, exserted, 

 and with large, very prominent eyes, in $ less developed and with 

 much smaller eyes ; antennae slender, very long in (J, shorter in $. 

 Prothorax {(^) nearly as long as broad, bicallose on the disc towards 

 the base, notched at the sides behind the middle, the notch limited 

 in front by an obtuse oblong callosity, the hind angles acute and 

 prominent; ($) shorter and more transverse, narrowly excised 



