PHALACRID.E 73 



surface rather obscure rufous; head much more than half as wide as 

 the prothorax, minutely punctulate, smooth, the eyes only moderate; 

 antennae smaller than in the two preceding, the club much shorter 

 than the funicle and more compact; prothorax not quite twice as 

 wide as long, the rather strongly converging sides very feebly ar- 

 cuate; base finely margined medially; scutellum transversely tri- 

 angular, the straight sides becoming arcuate basally; elytra distinctly 

 elongate and rather more than twice as long as the prothorax, some- 

 what broadly parabolic posteriorly, the sides continuing to flare but 

 only feebly arcuate anteriorly; surface throughout with micro- 

 reticulation, which is notably coarse and only partially arranged in 

 transverse wavy lines, the series composed of very distinct semi- 

 circular punctures throughout the width, much abbreviated apically 

 and basally, the punctures decidedly coarse, less so but otherwise 

 similar externally, the intervals not distinctly punctulate; prosternal 

 process dilated, flat and strongly arcuate apically, the sides and apex 

 minutely and feebly beaded, the setae short, two or three in number; 

 metasternal process narrower than in the two preceding, the meso- 

 fternum before it only moderately developed. Length 1.2 mm.; 

 width 0.63 mm. Florida (Tampa), Schwarz. [Stilbus elongatulus 

 Csy.] elongatulus Csy. 



The hind tarsi in the unique type of elongatulus are wanting; if 

 they had been intact I should probably have noticed the elongate 

 second joint, for it could hardly differ in any decided way from that 

 of rutilans and concinnus described above. It frequently happens 

 that the language used in the original descriptions of the writer 

 differs in degree from that used in the present revisions. As the 

 present descriptions are drawn up independently of the original 

 ones, though from the same specimens, a more permanently accurate 

 statement of characters can be obtained by taking the mean of the 

 statements, for personal equation may differ at different times of 

 life or under different physical conditions, and there are many 

 ways of describing a structural feature erroneously to only one ex- 

 pressing the truth. This of course is not so true of biological 

 matters as of the mathematico-physical, because of latitude caused 

 by variability in the former case, but it obtains nevertheless to 

 some degree, not only as between different authors, but the same 

 author at different times and under less or greater experience. 



Acylomus Sharp 



The chief differences between this genus and Stilbus reside in the 

 structure of the hind tarsi, sexual characters of the hind tibiae and 

 in the sculpture of the elytra. The body is broadly oval, rarely 



