544 Deutsch. Ent. Zeitschr. 1910. 



tennae, palpi and legs pale yellow; the terminating Joint of maxillary 

 palpi with the apical half part black. Long. 4^/2 — ö^/o mm. 

 Prov. Mendoza ; in numbers. 



Berosus dehiscens n. sp. Reg. i. 1. 



Much like the preceding , but Vertex dark , and head and 

 thorax distinctly punctate ; the dispersed punctures on scutellum 

 more distinct. Striae of elytra deeper , and interstices rather 

 coarsely punctate; punctures on 4*^ — 9*^ interstice arranged in 

 a Single row on the basal half of elytra ; interstices between 

 1^* and 2""^ and between S^'^ and 4*^ stria near apex considerably 

 broader than the striae themselves. Sutural edge of elytra ter- 

 minating in a rather acute, diverging tooth. Long. 5 mm. 



Estacion Santa Rosa, Prov. Mendoza, not numerous. 



Berosus Eng elharti J.-Hrp. 



(Jensen-Haarup: A new species of the genus Berosus in „Entomol. Med- 

 delelser", Copenhagen 1906, p. 50 — 51). 



As the preceding , but of a darker colour , considerably 

 smaller and comparatively much narrower of shape. Head in 

 front with a greenish finge and more narrowed than in B. dehiscens. 

 Scutellum indistinctly punctate. Striae of elytra deeper ; inter- 

 stices between 1^* and 2"^^ and between 3^*^ and 4*^ stria near 

 apex not broader than the Striae themselves. Sutural edge of 

 elytra terminating in a rather prolonged and sharp , diverging 

 tooth. Long. 4 mm. 



Estacion Santa Rosa , Prov. Mendoza , one specimen in my 

 coUection. 



Genus BemMdium, 



During my investigations in the Chariar Region I took much 

 trouble in collecting the small members of the genera Bembidium 

 and Tachys , and the result was consequently a good many new 

 species. The following table will separate the new mendocinian 

 species of Bembidium. 



Table of species: 



1. Thorax very much constricted behind and with strongly 

 rounded sides. Base of thorax scarcely or not more than 

 half as broad as thorax in front of the middle . .2. 

 Base of thorax not very much constricted and not much 

 narrower than thorax across the middle. Sides of thorax 

 moderately or very little rounded 8. 



I 



