86 THOS. L. CASEY. 



than head and prothorax together, obtusely rounded behind and entire; sides 

 nearly parallel ; striae faint. Scutelluni triangular. Antennae 'J, equal in length 

 to elytra ; first joint broad, equal in length to eye ; second joint sub-globular, 

 third narrower, much elongated and fusiform, fourth to eighth sub-equal, last 

 three suddenly enlarged ; ninth and tenth joints perceptibly flattened ; eleventh 

 cylindrical and oblong. The female differs from the male in the antennae, which 

 are much shorter, and in which there is no flattening of the ninth and tenth 

 joints ; the second joint is larger and nearly globular, and the third is much nar- 

 rower, and of the same length as the second. The elytra are also proportionally 

 longer. Length 1.4-1.7 mm. 



Plate VI, Fig. 4. Southern States. 



In regard to the preponderance in length of the third over the second 

 joint of the antennae, this species gives us the only exception to the gen- 

 eral rule of division A, in which it is regarded as common to both sexes. 



7. li. niodestns (Say). — Body elongated, dark testaceous, legs and antennae 

 same; sides parallel. Surface nearly glabrous, shining and sparsely, though 

 rather deeply punctured ; elytra foveo-striolate. Head sub-quadrate, transverse 

 groove very deep, median line faint; eyes small, convex, prominent and situated 

 slightly in advance of the posterior angles of head. Prothorax slightly narrowed 

 behind, quadrate; anterior angles rounded, posterior very prominent ; sides mod- 

 erately arcuate; lateral striae very distinct. Elytra equal in width to prothorax, 

 elongated, sides parallel ; squarely truncated behind, and leaving nearly the entire 

 fifth ventral segment exposed. Antennae % equal in length to the head, protho- 

 rax and elytra together, very slender and filiforn), last seven joints almost exactly 

 equal ; first equal in length to last, but about twice as thick ; all moderately pu- 

 bescent. Antennae of 9 same as % , excepting the length, which is equal to that 

 of the elytra and projecting abdominal portion together; the eighth joint is also 

 perceptibly smaller than the seventh, and the last three are almost imperceptibly 

 enlarged. The first four abdominal segments in both sexes are short and equal, 

 the fifth is almost equal in length to the first four together. Scutellum small, 

 sub-triangular. Length 1.8— 2.3 mm. 



Plate VI, Fig. 5. 



A common, broadly diffused, and well-marked species. There seems 

 to be no flattening in the terminal joints of the antennae. 



8. li. convexulus Lee. — Form broader and much more convex than that 

 of the preceding species. Body, legs and antennae dark brownish testaceous, 

 shining. Punctures on head sparse and coarse, those of prothorax closer and finer; 

 elytra foveo-striolate. Head sub-triangular; eyes small, in advance of posterior 

 angles ; transverse groove and median line rather obscure. Prothorax convex, a 

 little broader than head, slightly narrowed behind and very short; sides very 

 arcuate anteriorly ; anterior angles projecting in the form of well-marked teeth ; 

 posterior angles also prominent ; lateral striae not very distinct. Elytra equal to 

 twice the length of head and prothorax together, much broader than the latter, 

 entire, and evenly rounded behind; sides parallel, slightly arcuate; surface cov- 

 ered sparsely with rather long setae arranged in rows. Scutellum evenly rounded 

 behind, large. Antennae rather shorter than elytra, last three joints abruptly en- 



