TRIBE XVIII. BARINI. 389 



ond slender, longer than third ; thorax strongly narrowed in front, 

 constricted but not tubulate near apex, its flanks concave so as 

 to cause the lateral edge to appear Avell defined, the base trun- 

 cate; elytra not Avider than thorax, distinctly narrowed behind, 

 their disc very convex; tarsal claws small, divergent. 



KEY TO SPECIES OF MICROCIIOIAJS. 



a. Beak minutely and sparsely punctate, its apex flattened; scutellum 

 rather large, elongate-oval; upper surface nearly glabrous. 



591. STRIATUS. 



00. Beak distinctly punctate, not flattened at tip; scutellum minute, tri- 

 angular; upper surface rather densely but unevenly scaly. 



592. PUNCTICOLLIS. 



591 (8912). MICROCHOLTJS STRIATUS Lee., 1876, 304. 



Broadly oblong-oval, convex. Black, thorax polished, elytra feebly 

 alutaceous; legs reddish-brown; thorax with a small cluster of large 

 white scales each side of base and a few before scutellum; elytra with 

 widely scattered similar scales and a small group at base of third in- 

 terval: under surface sparsely, the legs, sides of meso- and metasterna 

 and last three ventral segments more densely, clothed with similar 

 scales. Thorax one-third wider than long, sides broadly curved from base 

 to the feebly constricted apex: disc very finely, shallowly and very 

 sparsely punctate. Elytra about as long as wide; striae rather fine, 

 deep, not punctate; intervals wide, each with a single row of very 

 fine, distant punctures. Tarsal claws short, very stout. Length 4.5 

 mm. 



Lakehurst, N. J., Apr. 26. Punta Gorda, Fla., Nov. 16. Here- 

 tofore known only from the single type taken at Lake Harney, 

 Fla., May 4. 



592 (8913). MICROCHOLUS PUXCTICOLLIS Lee., 1876, 304. 



Body and antennae black, shining; legs reddish-brown; under surface, 

 legs and elytra covered rather densely with large, oval white scales, 

 a little closer on third and fifth intervals toward base; thorax more 

 sparsely clothed with elongate scales, except a wide stripe on sides, which 

 is more densely scaly. Thorax two-thirds wider than long, sides broadly 

 rounded, the apex scarcely one-half as wide as base; disc rather finely 

 punctured, more densely on sides and with a broad, smooth median line. 

 Elytra not quite as wide at base, and twice as long as thorax; striae 

 fine, in some places indistinct, remotely punctate; intervals broad, 

 sparsely, finely and irregularly punctate. Length 3.4 3.8 mm. 



Taken in numbers by Hubbard & Schwarz at Lake Ashley, 

 Enterprise and Baldwin, Fla., on marshy meadows; June 10. 

 As the thorax is wider than elytra and the latter very convex and 

 strongly narrowed behind, the insect has a striking and peculiar 

 appearance. 



