Jayne.] OOi [Juno 16, 



the space between the front and lateral margins. Prosternum short, 

 moderately wide, tip wide, convex, not carinate. Abdominal segments 

 rufous, apical margins paler, pubescent. Logs rufo-testaceous. Length 

 .08-. 16 inch ; 2-4 mm. (Fig. 53.) 



Male. Antennal joints 1 and 2 large, 3-4 very small, 5-11 forming the 

 club, which is not deejily pectinate. 



Female. Antennal joints 1 and 2 large, 3-7 small, 8-11 forming the 

 club. 



This well known species possesses well marked characters by which 

 it can be at once separated from the preceding forms. The emarginate 

 eyes and non-pectinate antennae united with large antennal fossae, broad 

 prosternal tip and completely divided mesosternum are conclusive. T. 

 tarsale Mels. and T. palUpes Zieg. are identical with this species. 



Occurs in Pennsylvania, Massachusetts and South Carolina. 



CRYPTORHOPALUM Guer. 



Head moderately large, front wide, with a prominent ocellus, the epis- 

 toma short and on the same plane with the front, eyes prominent, round, 

 moderately coarsely granulated, entire. The antennae are 11-jointed, 

 terminated by a 2-jointed club, which is twice as long in the males as 

 in the females, the joints being equal in. hemorrhoidale, the terminal 

 joint much shorter than the preceding in all the other species. The 

 thorax at base is twice as wide as long, apex one halt the width of the 

 base ; the latter bisinuate, quhe strong, lobed behind on the middle line, 

 lobe truncate, partially overlapping the. scutellum ; the sides are arcuate, 

 somewhat dilated over the antennal fossae in the males of all the species, 

 very markedly so in rujicorne ; hind angles acute and prominent except in 

 the male of rujicorne, where they are retracted. Scutellum distinct, 

 triangular. Elytra widest at base, sides oval, apices separately rounded. 

 Antennal fossae distinct ; the mouth parts, except the labrum, are covered 

 by the prosternum which is not lobed in front, but is wide, moderately 

 long, the tip broadly produced, widely dividing the mesosternum and 

 consequently causing the mesocoxte to be widely separated. Metasiernum 

 short, side pieces wide. Hind coxal plates moderately long, wide, 

 reaching the epimera of metathorax. Legs stout, femora grooved beneath 

 for tibiie, first and last joint of tarsi long, nearly equaling the small inter- 

 mediate ones united. 



The species of this genus are small, black or piceous, and moderately 

 coarsely punctate, the elytra are sparsely pubescent except in bcdteatum, 

 where the grayish hairs are arranged in fasciate form. Tlie anatomical 

 characters by which this genus is separated from the others, are the wide, 

 sliort, flat front ; the 2-jointed club of the antenme ; the submarginal an- 

 tennal fosste ; the prosternum covering all the mouth parts except the 

 labrum ; its broad tip dividing widely the broad mesosternum ; and the 

 wide, moderately long, posterior coxal plates. 



