226 Trans. Acad. Set. of St. Louis. 



Middle coxae moderately separated, the mesosternal process projecting 

 between them nearly to the middle, parallel-sided, rounded and more 

 or less free at tip, separated from the mesosternal projection by a short 

 and generally somewhat depressed isthmus; presternum moderate be- 

 fore the coxae, the posterior acute edge of the exposed portion finely 

 cusped at the middle, its surface more or less tumid at the middle near 

 the cusp; head more or less rounded at base, the neck very narrow, the 

 eyes moderate, prominent, the antennae very long, moderately stout, 

 the last joint subequal in length to the two preceding combined; pro- 

 thorax very strongly narrowed toward base, not transversely impressed 

 before the latter; scutellum more or less densely sculptured, frequently 

 finely carlnate along the middle; legs rather slender, the hind tarsi fili- 

 form, much shorter than the tibiae, with the basal joint almost as long 



as the entire remainder. Nearctic North America Lorinota 



Hypomera shorter, relatively much more dilated at the middle 7 



7 — Mesosternal process free, rather long, obtusely rounded and extending 



about to the middle of the coxae, where it is separated from the meta- 

 sternal projection by a short depressed isthmus; middle coxae moder- 

 ately separated. Body parallel; prosternum rather short before the 

 coxae, flat, the posterior margin cusped at the middle; head arcuato- 

 truncate at base, with evident rounded angles, the neck more than a 

 fourth as wide as the head, the eyes rather small; antennae very thick, 

 the outer joints strongly incrassate and compact, the last stout, ogiv- 

 ally pointed, not as long as the two preceding combined; prothorax 

 rather short, strongly narrowed toward base, deeply sulcate, the sulcus 

 ending posteriorly in a small rounded simple enlargement; scutellum 

 nearly flat, granularly sculptured; elytra well developed, with widely 

 exposed humeri as usual; abdominal impressions narrow, deep, acutely 

 impressed, somewhat coarsely but sparsely punctured ; legs moderate 

 in length, stout, the hind tarsi much shorter than the tibiae, with the 

 basal joint as long as the next three combined, the latter equal among 



themselves. Europe *Falagrionia 



Mesosternal process not free, its truncate apex joining the metasternal 

 projection with or without a short and feebly defined isthmus, all on 

 virtually the same level throughout .... 8 



8 — Scutellum acutely and strongly bicarinate; body moderately small in 



size. Form somewhat stout and convex as a rule, middle coxae only 

 moderately separated, the mesosternal process attaining the middle of 

 the acetabula, rounded at tip and separated from the obtuse tip of the 

 shorter metasternal projection by a distinct isthmus, which is delimited 

 from the metasternum by a fine, frequently irregular suture; prosternum 

 short before the coxae, with the median part of the exposed surface 

 defiexed and very obtusely rounded posteriorly; head arcuato-truncate 

 at base, with rounded angles, the neck very narrow, the eyes small, 

 slightly prominent, the antennae moderate in length, rather stout, incras- 

 sate distally, the eleventh joint not as long as the two preceding to- 

 gether; prothorax very strongly narrowed toward base, deeply sulcate, 

 the sulcus not enlarged basally, the disk with a fine arcuate and trans- 

 verse impressed line before the base; elytra with widely exposed hu- 

 meri; abdominal impressions with a single series of coarse punctures; 



