DESCRIPTIONS 01 NKW SPECIES. 135 



H1MEXORIS Mdls. 



419. II. communis, Elongato-ovalis, picena nitidna helvo-pnbea- 



cens, capite thoraceque fortiter pmu-tatis, hoe latitndine Besqai breviore, 

 antrorsuni angustato, lateribus rotundatis tenuiter marginatis, basi 

 bisinuata tenuissime uiarginata, trifoveata ; elytris striis fortiter dense 

 punctatis, interioribus paulo iuipressis, scutellari distinota, interstitiis 

 parce subtiliter punctatis ; ore antennis pedibusquo testaceo-ferrugim-is, 

 femoribus paulo infuscatis. Loug. *22 — *24. 



Not rare in the Middle and Southern States. Tin- species of 

 Hymenorus in my collection may be distinguished by the Bub- 

 joined table : — 



A. Surface shining, punctuation of thorax not dense ; 



a. Elytra of uniform color ; 



Thorax finely punctured. 1. puxctclatus. 



Thorax not finely punctured, twice as wide as 

 long; 

 Striae not impressed, punctures distant. 2. tiloscs. 



Stria? scarcely impressed, punctures approximate ; 



Feet entirely rufo-testaceous. 3. obscurus. 



Thighs nearly yellow, tibiae darker (pubes- 

 cence finer and nearly cinereous). 4. nigra. 



Thorax not finely punctured, one-half wider 



than long. 5. commtms. 



b. Elytra ferruginous at base. G. HUHBBALIS. 



B. Surface less shining ; 



Thorax densely and coarsely punctured ; 



Sides parallel behind. 7. rcfii-fs. 



Sides narrowed from the base to the tip ; 



Head, thorax, and elytra uniform piceous. 8. oohfhbtcb. 

 Head and thorax dull red, elytra piceous. 9. DEVBDS. 



Thorax very finely and densely punctured. 10. pumtatissimis. 



In H. obscurus and communis the males differ from the females 

 by the 3d joint of the antennae being but little longer than the 2 

 while in the females the 3d joint is nearly or qnite as long a- the 

 4th; in division B the 3d joint is as long as the 4th in both 

 sexes, but the antennae are more strongly serrated from the 4th 

 joint inclusive, than in the females. In //. punctatistsimvs the 

 internal angle of the last joint of thT> maxillary palpi is more 

 rounded than in any of the other species. 



420. H. humeralis. Nigro pioena, nitidna, nelro-pnbefloens, 



thoraceque baud dense pum-t;itis, hoe latitndine Beaqni breviore, :> baai 



