260 Trans. Acad. Sci. of St. Louis. 



aliculate; scutellum punctulate, not at all canaliculate; elytra wider 

 than the prothorax, closely punctulate, piceo-testaceous; abdomen yery 

 finely punctulate, broader and flatter than usual, and scarcely nar- 

 rowed toward base, the first three tergites impressed as usual, the im- 

 pressions impunctate; posterior tarsi two-thirds as long as the tibiae, 

 with the first joint as long as the three following combined, the latter 

 subequal. Length 3.5 mm. New York, found under a stone. 



qaadriceps Lee. 



It is rather more than probable that each of these species 

 will prove to be the type of a distinct genus, apparently differ- 

 ent from any defined in the above tables. Fa^a belongs, with- 

 out much doubt, to the subtribe Tachyusae and may be 

 attached provisionally to the genus Gnypeta, some of the 

 components of which have the neck rather strongly con- 

 stricted. Quadriceps, on the other hand, is almost certainly a 

 member of the subtribe Falagriae, where it is wholly isolated; 

 it may take the generic name Orthagria (n. gen.) and be 

 placed just before the genus Lissagria in the table of genera. 

 In each case the published length of the body is probably ex- 

 cessive. Tachyusa pygmaea, of Sachse, has been identified 

 as the European Mymecopora crassiuscula Aub., by Mr. 

 Fauvel ; I have now no example of it, but, if this is true, it 

 should be removed from our lists. 



Tribe Bolitocharini. 



In this tribe the tarsi are 4-4-5-jointed throughout, but, 

 apart from this distinguishing character, there is great struc- 

 tural variety, some forms recalling correspondingly specialized 

 groups in other tribes, as usual under the tarsal system of 

 classification. There are numerous subtribes, such as the 

 Autaliae, composed of the genus Autalia alone, recalling the 

 Falagriae of the Myrmedoniini and theEchidnoglossae of the 

 Aleocharini, the Bolitocharae, with rather numerous genera, 

 represented by a multitude of fungus-loving species, the 

 Homalotae, consisting of the genera Homalota Mann. — ( = 

 Epipeda Rey) — and Placusa, the Gyrophaenae, as described 

 below, and the subtribe Phytosi, distinguished by its com- 

 paratively large number of highly specialized genera, there 

 being a separate genus for almost every known species. The 



