NORTH AMERICAN COLEOPTERA. 85 



margined, striate, and. obtusely rounded beliind; sides parallel. Antennae equal 

 in length to elytra; last three joints much longer and broader; flattened. 

 Length 2.0 mm. 



Plate V, Fig. 10. 



May be distinguished immediately by its comparatively small size, im- 

 maculate surface and antennae. I have unfortunately only one f<pecinien 

 before me, wliicli, however, is a male. The exact locality is not given. 



6. Ij. floridaiiiis n. sp. Male. — Form moderately elongated, strongly de- 

 pressed ; sides parallel. Body neax'Iy glabrous, and somewhat shining. Punctures 

 of head and prothorax rather fine and sparse; elytra striate. Color reddish testa- 

 ceous, head and antennae a little darker. Head strongly transverse, broad ; 

 epistoma tri-sinuate; labrum entire ; eyes small, convex ; transverse groove want- 

 ing; median line faint; mandibles large and arcuate. Prothorax transverse, nar- 

 rower than head, narrowed somewhat strongly behind; sides sinuate; anterior 

 and posterior angles acute; lateral striae rather obscure. Scutellum triangular. 

 Elytra about one-fourth as long again as head (including mandibles) and protho- 

 rax together, narrower at the base than the latter, entire, and evenly rounded 

 behind : sides parallel and arcuate, margined. Abdominal segments sub-equal. 

 Antennae as long as elytra ; first joint as long as eye, robust and ciliated with long 

 hairs on the anterior surface; second small, third elongated, fourth to eighth sub- 

 equal, and nearly moniliform, ninth to eleventh enlarged and strongly flattened, 

 forming a loose club, last joint strongly carinated, all coarsely pubescent. 

 Length 3.5 mm. 



Plate V, Fig. 11, and Plate VI, Fig. 1. 



This species appears to be very similar to Reitteri Grouv. from Brazil. 

 It however differs from that species in the antennae and length of tlu> 

 elytra. One specimen, Tampa Bay, Florida (Schwarz). 



The five species described thus far form a very distinct group, the di.s- 

 tinguishing features of which are the great differences which exist be- 

 tween the male and female, and the remarkable and very heterogeneous 

 antennae. The eyes in all are situated at the posterior angles of the 

 head, and the elytra cover the entire abdomen. Although forming by 

 themselves a well-marked division, they possess no differential characters 

 of such importance as to be considered generic, and if we could separate 

 them together a.s a genus, we might with equal propriety construct three 

 genera from these five species from antennal characters alone. 



6. Ij. cliama;rO|)iS Sz. — Form rather elongated, depressed. Entire surface 

 glabrous. Head and prothorax lightly, minutely and sparsely punctured; elytra 

 not punctured, striate. Head and protiiorax dark testaceous, integuments thick; 

 elytra pale testaceous, thin and trans{>arent ; legs and antennae darker. Head 

 sub-triangular; eyes rather prominent and finely granulated : transverse groove 

 verv feebly developed. Prothorax equal in width to head, rather broader than 

 long, slightlv narrowed posteriorly; sides arcuate; anterior angles rounded, pos- 

 terior well developed: lateral striae prominent. Elytra % of rather greater length 



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