1873.] ^J7 [Horn. 



H. Lecontei, Mars. Mon., 1853, p, 273, pi. 7, fig. 17 ; depresftus, % Lee. 

 Bost. Jourii. v., p. 40, pi. 1, fig. 4. 



Slightly longer and more depressed than carolinus. Thorax smooth at 

 middle, sparsely punctured at the sides, marginal stria entire. Elytra 

 Avith three entire dorsal striae, fourth apical, extending to middle some- 

 times very nearly entire, fifth short apical, sutural feeble equal to the 

 fifth. Propygidium coarsely, but very sparsely punctured, pygidium 

 coarsely punctured at base, more finely and sparsely at apex. Anterior 

 tibiae 4-dentate, middle 3-, apical 2-spinous. Length .10-.12 inch ; 

 2.5-3 mm. 



Occurs abundantly over nearly our entire territory. The specimens 

 from California all differ from those of the Atlantic region by the entire 

 obliteration of the frontal stria. As there are no other discoverable 

 points of difi'erence, I i:)refer to regard them merely as varieties. 



H. aurelianus. n. sp. 



Closely allied to Lecontii, but more depressed and differing as follows : 



Thorax not punctured at the sides. Elytra with three entire dorsals, 

 fourth very short, apical, fifth obsolete, sutural entirely absent. Length 

 .12 inch ; 3 mm. 



Kindly presented to Dr. Leconte, by IM. Salle, who received it from 

 the neighborhood of New Orleans, Louisiana. 



The above three species have the mesosternal stria entii'e. 



H, parallelus, Say. Journ. Acad., 1825, p. 42 ; Lee. Bost. Journ. V., 

 p. 40, pi. 1, fig. 5 ; Mars. Mon., 1852, p. 264, pi. 7, fig. 9. 



Moderately elongate, sub- cylindrical. Thorax sparsely and evenly 

 punctured. Elytra with the five doi'sal and sutural strias entire, and 

 with a short basal humeral stria. Pygidium and propygidium very 

 coarsely, but sparsely punctured. Mesosternal marginal stria entire. 

 Anterior tibise 4-dentate, apical tooth bifid, middle tibiaj 4-, posterior 

 2-spinous. Length .10 inch ; 2.5 mm. 

 'Occurs in Georgia, South Carolina and Florida. 



H. seqiius, Lee. New Species, 1863, p. 61 ; frontalis, || Say. Journ. 

 Acad., 1825, p. 43. 



Closely allied to the preceding, but more depressed. Fifth dorsal stria 

 always abbreviated at base. Mesosternal stria broadly interruiDted at 

 middle. Middle tibiiB 3-spinous. Length .08 inch ; 3 mm. 



Occurs in Georgia. 



H. coarctatus, Lee. Bost. Journ. V., p. 41, pi. 1, fig. 6 ; Mars. Mon., 

 1853, p. 282, pi. 7, fig. 25. 



Elongate parallel, cylindrical. Thorax evenly but not densely punc- 

 tured. Elytra with four entire dorsal stria}, fifth three-fourths and 

 sutural two-thirds the length of the elytra, a very short basal humeral. 

 Propygidium coarsely, but sparsely i)unctured, pygidium finely, and 

 very nearly smooth at apex. IMesosternal stria entire. Length .10-.12 

 inch ; 2.5-3 mm. 



A. p. s. — VOL. xiir. 2l. 



