252 GEO. H. HORN. 



Occurs in Ohio, Illinois, Missouri, Kentucky, North Carolina 

 Florida to Texas. 



H. norinatliSi Lee. — Oblong oval, narrowed ni front, subdepressed, form 

 and color generally of macidicollin. Tliorax similarly punctured. Elytral striaj 

 scarcely impressed, the punctures coarser and less close than in maculicolHs, and 

 very nearly reaching the apex, the intervals flat, scarcely distinctly punctulate, 

 the fifth and ninth with a row of coarse punctures. Body beneath and legs as 

 in maculicoUis. Length .20 — .22 inch. ; 5 — 5.5 mm. 



The prosteruum is very feebly cariuate. Mesosteruum longitudinally feebly 

 carinate, nearly as in Phil, ochracens. 



The claws are alike in the sexes and simply slightly thickened at base. 



The male has the last ventral segment feebly notched as in inactilicoUis. 



While this and the preceding species resemble each other so closely 

 superficially, two important structural characters separate them. In 

 viaculicoUis the apex of the mentum is arcuate, here there is a dis- 

 tinct emargination. The mesosternum al.so differs in the two species. 



The eniarginate mentum and feebly carinate mesosternum seem to 

 be the two important characters defining Chasmogeims Shp. (Biol. 

 Cent. Am. i, 2, p. 73) founded on a species in which the elytra are 

 not striate. While it would be defensible to place our species in that 

 genus, I am unwilling to that extent to admit the validity of CAa.s- 

 mogenus. The color and sculpture vary here as in maculicoUis, and 

 the elytral striie may be slightly impressed, or consist merely of rows 

 of punctures. 



Occurs from San Francisco southward into the peninsula, and 

 thence eastward to Arizona. It is highly probable that it extends 

 also into Mexico. 



CYMBIODYTA Bedel. 



We owe to the acute observation of Dr. Sharp a knowledge of the 

 fact that in this genus the middle and hind tarsi have completely 

 lost the first joint, which, though quite short, is very readily seen in 

 the other genera. The tarsi are, therefore, heteromerous with the 

 formula 5-4-4. 



The maxillary palpi are of modei'ate length, the pseudo-basal 

 joint being curved in such a manner that the concavity is to the 

 front, being the reverse of Philydrus. The curve is, however, not 

 well marked, and in the striate species the joint is so nearly straight 

 that, for purposes of classification, it might well be called so, espe- 

 cially when compared with the convex-forward curve of Philydrus 

 or the concave-forward curve of Helochares. In the non-striate spe- 



