184 Trans. Acad. Set. of St. Louis. 



greater or less generic import relate to the degree of separa- 

 tion of the middle coxae and conformation of the intermeso- 

 coxal parts. The pronotum, although frequently broadly 

 impressed along the middle, seldom has any very distinct 

 trace of the longitudinal groove distinguishing most of the 

 Falagriae. The genera represented in my cabinet may be 

 briefly described as follows: — 



Middle acetabula complete and closed throughout by a fine beaded edge 2 



Middle acetabula broadly open behind 5 



2 — Middle coxae well separated, the mesosternal process obtuse 3 



Middle coxae approximate, the mesosternal process narrower, some- 

 times very acute, free 4 



3 — Body slender; mesosternal process very short, broadly rounded at tip, 

 extending only to anteriorthird of the acetabula and on exactly the same 

 plane as the obtusely truncate tip of the long metasternal projection, 

 from which it is separated by a very short broad isthmus; prosternum 

 moderate before the coxae, not extending more than half way to the me- 

 sosternum, angularly tumid behind, the exposed part separated from 

 the concealed inner edge by a fine beaded margin, the inner part some- 

 what produced posteriorly but very broadly rounded ; head small, or- 

 bicular, the antennae long, the neck not quite one-half as wide; eyes 

 rather small, not prominent; prothorax narrow, broadly impressed; 

 elytra depressed, short, prominently elevated along the sides; abdomen 

 broad, subimpunctate, the first three tergites narrowly and subequally 

 impressed at base, the impressions sculptureless; legs and antennae 

 long, the hind tarsi long and slender, filiform, the first joint fully as 

 long as the next two combined. Pacific Coast of America... Trachyota 

 Body stouter, nearly as in Meronera; mesosternal process very short and 

 broad, transversely truncate at tip, not extending quite to anterior third 

 of the acetabula and separated from the truncate apex of the long wide 

 metasternal projection by a very short broad isthmus on the same plane 

 as both the apices; middle coxae widely separated; prosternum unus- 

 ually developed before the coxae, posteriorly and sharply angulate 

 between the latter, the very finely aciculate apex extending to the me- 

 sosternum and finely carinate for a short distance from the tip; head 

 well developed, arcuato-truccate at base, the eyes large and prominent; 

 palpi slender, moderate in length, the antennae slender, rather long; 

 neck unusually narrow, less than a third as wide as the head; pro- 

 thorax wider than long, obtrapezoldal, strongly and almost evenly con- 

 vex; elytra evenly convex, not angulate at tip externally; abdomen 

 parallel, almost as in Gnypeta, the first three tergites rather strongly 

 but narrowly and subequally impressed at base, the fourth and fifth also 

 very feebly impressed near the basal margin ; legs and tarsi very slender. 



Cuba and Central America ""Neolara 



Body usually rather stout but variable in form, the mesosternal process 

 narrowly rounded, extending to about the middle of the acetabula, very 

 slightly free and separated from the rounded tip of the metasternal 



