86 GEORGE H. HORN, M. D. 



anterior male tarsi have all the joints in line but the second having a 

 process above which partly covers the third. Ehseus contains those 

 in which the anterior tarsi of male have the joints 3 — 4 — 5 placed 

 slightly obliquely to the first two while the second has a prolongation 

 extending obliquely inwards and not covering the third joint at all. 

 The characters drawn from the extent of membranous surface of epis- 

 toma or abdomen as noticed by Duval are not at all to be relied on in 

 the separation of genera. Should future study of our species prove 

 the correctness of the above views of Duval, Acletus, Lee, must be 

 suppressed as not distict from Ebsens. While the Ebmus of Leconte 

 is not that of Erichson who says, "Tarsi autici maris 5 articulati, ar'i- 

 culu senindo ohliquo." In the greater number of species of EhffM"^^ 

 Lee, the anterior tarsi are simple in both sexes and not perceptibly 

 differing. They are therefore more closely allied to Anthocom,usyiih\c\\ 

 indeed they resemble. The males however differ in having the apices 

 of elytra pale, prolonged and appendiculate. The. discovery of other 

 characters will probably necessitate the creation of a new genus for 

 these species. E. wt»rM^«s, Lee, is a true Attains. 'The species of 

 the latter genus are partially correct, some being Ebsens. In the pre- 

 sent paper the name Attains will be used for those species in which the 

 ^second joint of anterior tarsus of male is prolonged over the third, con- 

 cave beneath, and not oblique. Ebseics will therefore contain those in 

 which the second joint is prolonged obliquely inwards and forwards so 

 that the joint when viewed from beneath and on its outer side is 

 very small and in the opposite directions large. 



A. elegans, n. sp. — Head oval, shining, rufous, occupital region black. 

 Thorax rufous, sub-orbicular, not broader than long, moderately convex, shin- 

 ing impunetured, less rounded at apex than at sides or base. Elytra paler 

 rufous, alutaceous, sparsely punctured at sides, with a narrow basal black band 

 at base not attaining the humeri and an oval black near the apex. Body be- 

 neath pale rufous, meso and metasternum shining black. Legs ferruginous ex- 

 cej^t apices of anterior and middle, and the entire posterior femora black. 

 Abdomen in great part membranous. Antennae black, three basal joints rufous. 

 ]\Iale with second joint of anterior tarsi prolonged over third, apices of elytra 

 feebly impressed. Length .16 inch; 4 mm. 



Specimens collected at Keyesville, California, in the high Sierras 

 on flowers of iEsculus. 



Abundantly different from all our species in the colors and form of 

 thorax, and recalls in its form species of Gnathium, the head and 

 thorax very nearly equalling the length of elytra which are but slightly 

 broader than the thorax. The elytra have few moderate punctures 

 near the sides. The entire surface is very sparsely clothed with 



