TRIBE I. TROPIDERIXI. 31 



Texas. Occurs on dead twigs and on fungus growing on dead 

 beech. Easily known by its large size, snow-white markings and 

 rough sculpture. 



VII. TROPIDERES Schou., 1820. (Gr., "keel" + "neck.") 



Rather slender, oblong or subcylmdrit-al species having the 

 beak wider than long, not longer than head, antennal fovete not 

 visible from above; eyes oblique, slightly oval, more widely sepa- 

 rated than in Eitryniyctcr: antennae slender, not reaching base 

 of thorax, first and second joints oblong, much thicker than 3 8 

 which are slender, subequal, 9 12 stout, forming a short flat- 

 tened club; thorax subconieal, wider at base than long; scutellum 

 minutely rounded; elytra but slightly wider than Iliorax; ventral 

 segments subequal in length. Two species are known from North 

 America.* 



15 (9205). TROPIDERES BIMACULATUS Oliv., 1795, 80, p. 14. 



Oblong, rather slender. Black with numerous scattered tufts of dark 

 hair; thorax with two small round whitish spots, and an elongate one in 

 front of scutellum; elytra each with a humeral spot and a common trans- 

 verse subsutural one behind the middle, grayish-white; tibiaa annulate with 

 grayish. Thorax with sides rounded, feebly, obtusely tuberculate; disc un- 

 even, coarsely and sparsely punctate; ante-basal ridge obtusely angulate at 

 the middle with angle directed forwards, and obtusely bent on the sides. 

 Elytra slightly wider at apical fourth than at base; disc with irregular 

 rows of rather coarse, deep, close-set punctures. Length 4.5 4.8 mm. 



Posey Co., Indiana, scarce beneath bark of honey locust and 

 soft maple; April 19 Nov. 8, Newark. New Jersey. Lowell. Mass. 

 Ranges from New England to Wisconsin, south to South Caro- 

 lina. Occurs on dead twigs and beneath bark. 



16 (9206). TROPIDERES RECTUS Lee., 1876, 395. 



Oblong-subcylindrical. Dark brown irregularly maculate with yel- 

 lowish pubescence; elytra also with a few white dots; legs annulated with 

 gray; beneath thinly clothed with very fine grayish-yellow hairs. Thorax 

 much wider than long, sides obliquely and broadly rounded into the apex, 

 which is also broadly rounded; disc densely and finely punctate, the ante- 

 basal ridge nearly straight, parallel to the base, suddenly bent at sides al- 

 most at right angles and extending nearly to the middle. Elytra with 

 rows of large punctures; intervals even, alternately variegated with dis- 

 tant small white dots. Length 4 mm. 



*Bovie (1905) states that the true Tropldcrcs do not occur in America, and pro- 

 visionally attaches some American species to Gonioclccus Jordan. Until Dr. Jordan's 

 classification appears in Genera Insectorum, it is difficult to -~ay \vln-t IH.-I- all our sptcies 

 should be so characterized, or a new genus erected for them. In the meantime it seems 

 best to retain Schonherr's generic name. 



