STAPHYLINID.E. 15 



finely, closely, simply and very clearly punctate; abdomen parallel or very 

 nearly, slightly narrower than the elytra; basal joint of the hind tarsi sim- 

 ilarly long, the mesosternal process very much shorter and triangular, not 

 prolonged and finely aciculate as it is in the preceding. Length 3.3 mm.; 

 width 0.75 mm. California (Sta. Cruz Mts.). 



Very distinct from bicariniceps in the formation of the sterna and 

 abdomen; the infra-lateral carinae of the head are similarly entire 

 but are finer and not so elevated. 



Atheta (Athetalia) nimia n. sp. Form parallel, convex, large in size, black, 

 the elytra, legs and antenna? basally brownish-rufous, the abdominal tip 

 faintly paler; lustre moderately shining, the integuments rather strongly 

 micro-reticulate, the abdomen with excessively fine and close transverse 

 strigilation; head well developed, the eyes not very convex, at about their 

 own length from the base; antenna? not quite so long, moderately stout, 

 not gradually incrassate but parallel except basally, the joints slightly wider 

 than long, the eleventh not quite so long as the two preceding; prothorax 

 distinctly wider than the head and correspondingly narrower than the elytra, 

 convex, transverse, parallel, unusually strongly and evenly rounded at the 

 sides, finely, not densely punctulate and with two minute approximate and 

 coalescent impressions before the base; elytra large, wider than long, finely 

 punctulate, very much longer as well as wider than the prothorax; abdomen 

 parallel, much narrower than the elytra, minutely, sparsely punctulate, the 

 fifth tergite a little longer than the fourth, the sixth in the type broadly 

 rounded, becoming gradually distinctly sinuate at the middle of the apex; 

 mesosternal process very long, extending three-fourths of the coxal length, 

 becoming very finely drawn out and aciculate. Length 4.2 mm.; width i.o 

 mm. British Columbia (Metlakatla), Keen. 



This is the largest Athetid known to me from North America 

 and is very distinct from the two preceding. The basal joint of 

 the hind tarsi is similarly elongate. 



Megista Rey. 



The following species agrees very well with subplana in all its 

 structural characters, including nearly obsolete infra-lateral carinae 

 of the head, short basal joint of the hind tarsi and approximate 

 middle coxae, with very short metasternal projection, but the meso- 

 sternal process is noticeably longer. Granulata Mann., (Elytrusa 

 Csy.) is closely allied but larger and with a notably larger head and 

 still longer and stouter antennae; I do not think that grannlata 

 can be the same as the European graminicola Grav. 



Atheta (Megista) nomadica n. sp. Moderately stout, parallel, deep black, 

 moderately convex, rather strongly shining, the elytra not distinctly picescent, 

 the antennse nearly black, the legs piceous-brown; head small, orbicular, 



