542 Deutsch. Ent. Zeitschr. 1910. 



Striae of elytra , at least the dorsal ones , fine , more finely 

 punctured. Species of average size (4 — 5 mm) . . 6. 



5. Elytra uniformly dark with side margins paler. 



B. üssinr/i n. sp. 

 Elytra bright yellowish with numerous rather well defined, 

 small dark spots B. midtimaculatus n. sp. 



6. Interstices (with exception of 2"*^ and 4*^) with very fine and 



partly indistinct punctures . B. coptogonus Reg. i. 1. 

 Interstices with distinct and partly coarse punctures . 7. 



7. Interstices between 1^^ and 2^^ and between 3^*^ and 4^^ stria 



at apex considerably broader than the striae. Length of 



body 5 mm B. deliiscens Reg. i. 1. 



Interstices between 1^* and 2'^*^ and between S*"^ and 4^^ stria 

 at apex not broader than the striae. Length of body 

 4 mm B. Engelharti J.-Hrp. 



Description of species. 



B er OS US pedr egale nsis n. sp. 



Head wholly black with a metallic green reflection ; Vertex 

 strongly punctured. Thorax yellowish ; disk with a dark , ill 

 defined shadow. Thorax strongly and densely punctate ; inter- 

 stices between punctures of about same sizes as the punctures 

 themselves. Elytra yellowish, with indistinctly defined dark spots ; 

 Stria deep and strongly punctured ; interstices very coarsely and 

 strongly punctate. Sutural edge of elytra terminating in a sharp 

 tooth ; near this tooth a strong spine ; margin between sutural 

 edge and spine semicircularly excavated. Antennae , palpi and 

 legs yellow. Long. 6 mm. 



Estacion Pedregal, Prov. Mendoza. 



Berosus stenocoptus n. sp. Reg. i. 1. 



Head metallic black with a beautiful golden greenish shine, 

 finely but distinctly punctate. Thorax pale yello\v , on the disk 

 with a rather well defined, dark, longitudinal spot, which is longi- 

 tudinally divided by a narrow, yellowish line. Thorax very finely 

 punctate. Elytra with a dirty pale yellowish colour, and with 

 some few small, dark spots ; stria fine and finely punctured ; inter- 

 stices very finely and indistinctly punctate; 2^^ and 4^^ inter- 

 stices with a somewhat irregulär row of larger punctures. Sutural 

 edge and spine of elytra nearly as in the preceding species, but 

 the excavation between edge and spine less semicircular and more 

 flattened. Antennae, palpi and legs pale yellow, but apex of the 

 terminate Joint of maxillary palpi black. Long. 6^/2 mm. 



Estacion Santa Rosa, Prov. Mendoza. 



