30 PROC. ENT. SOC. WASH., VOL. 21, NO. 2, FEB., 1919 



Mesosternum never canaliculate, horizontal, forming a surface almost 



continuous with the prosternum and metasternum 14 



2. Antennal funicle 5-jointed 1 MIARINAE, new subfamily. 



Antennal funicle 6- or 7-jointed 



3 . Tarsus with one claw 2 HAPLONYCHINAE Pascoe. 



Tarsus with two claws 4 



4. Prothorax covered with fine costae, longitudinal and parallel 



3 EUDERINAE Pascoe. 



Prothorax not covered with fine costae, longitudinal and parallel .... 5 



5. Rostrum very short, robust, subquadrangular; antennae very short. . 



4 NERTHOPINAE Pascoe. 



Rostrum and antennae at least moderately long 6 



6. Femora armed with a great triangular tooth 



5 MENEMACHINAE Pascoe. 



Femora unarmed or dentate, the tooth at most moderate in size . . 7 



7 . Rostrum cylindrical throughout, generally slender 8 



Rostrum variable, but not cylindrical; compressed or depressed, at 



least at base 11 



8. Prosternum not canaliculate, sometimes a little concave 9 



Prosternum canaliculate 9 ISORHYNCHINAE Pascoe. 



9. Elytra not covering the pygidium 6 LAEMOSACCINAE Pascoe. 



Elytra covering the pygidium 10 



10 . Tarsal claws cleft, or simple and connate 7 ALCIDINAE Pascoe. 



Tarsal claws simple and free 8 DERELOMINAE Pascoe. 



11. Eyes very rarely approximate on the front, more or less covered 



when the rostrum is at rest 12 



Eyes rarely separated above, always uncovered, even when the 

 rostrum is at rest 13 ECCOPTINAE, new subfamily. 



12. Prosternum not canaliculate, sometimes a litte excavated 13 



Prosternum canaliculate, rarely excavated. .12 OROBITINAE Pierce. 



13. Anterior coxae separated 11 AMERININAE, new subfamily. 



Anterior coxae contiguous 10 METATYGINAE, new subfamily. 



14. Rostrum short and robust, body depressed 15 



Rostrum at least moderately long, never very robust .... 16 



15. Rostrum very depressed, straight 14 ULOMASCINAE Pascoe. 



Rostrum angulate, arcuate 15 EPIPEDINAE, new subfamily. 



16. Mesosternum large, transverse, quadrate; body oblong, depressed. 



16 TRYPETIDINAE, new name. 



Mesosternum reduced to a tiny transverse band; body briefly oval, 

 very convex 17 PYROPINAE Pascoe. 



i. Miarinae, new subfamily. 



Type genus. -Miarus Schonherr, 182(5, Cure. Disp. Meth., p. 

 320. Name of stirps 2 of Gymnaetron. 

 Type campanulae Linnaeus, by original designation. 



