BEMBIDIIN.E 35 



remote and infinitesimal punctures, visible only under high magni- 

 fication; foveae small, near two-fifths and three-fourths. Length 

 (9) 4.8 mm.; width 1.9 mm. California (Booneville, Mendocino 

 Co.) repens n. sp. 



The species identified above as erasum Lee., from Lake Tahoe 

 specimens, agrees with the original description perfectly in all re- 

 spects except one, but this is very difficult to understand if the ma- 

 terial alluded to really represents the species of LeConte, for that 

 author states that the third stria is "profunde bipunctata." The 

 first section of the subgenus, or Lionepha proper, has the dorsal 

 fovese notably small and feeble throughout. The second section 

 may be identical with the European Plataphus of Motschulsky, 

 and if so will have to be removed to form a separate subgenus; 

 the species in this section described under the name ampliatum is 

 probably that identified as the Alaskan incertum Mot., by Hay- 

 ward, but the description of incertum given by its author (Bull. 

 Mosc., 1845, P- 35). shows that it is a rather smaller species, 3.3 

 by 1.5 mm., obscurely a?neous above and, although most of the 

 structural characters given might be considered applicable to am- 

 pliatum, the radical difference in habitat Sitka, an island of the 

 Pacific, and the high mountain regions of Colorado should cause 

 one to hesitate in definitely stating the two to be specifically iden- 

 tical. The multiplicity of allied though obviously distinct forms 

 in the Pacific regions, such as blanditum, saturatum, lividulum and 

 improvisum, is another cause of uncertainty in such an identification. 



The third section, or that typified by trechiforme and iridescens of 

 LeConte, is so distinct in habitus that it may be regarded as more 

 properly forming a separate subgenus, as indeed recommended by 

 Hayward, although I regard the dorsal foveae of the elytra as at- 

 tached to the third stria, and not entirely free as in Notaphus, and 

 it therefore should form a part of the Peryphns series. Some of 

 the species, and especially such as haruspex, conflictum and rusti- 

 cum, and even funereum Lee., were regarded as a part of the pla- 

 natum group by Hayward, but I think find a more fitting place near 

 the trechiforme subsection of what is called Trechoneplia above. 

 Rusticum may be allied to simplex Hayw., but the terms slender and 

 elongate, with the prothorax narrower at base than apex and having 

 the basal fovese deep, could not be applied at all well to rusticum, 



