402 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 45. 



Genus PANDELETEIUS Schonherr (1834). 



Pandeleteius Schonherr, Gen. et. Sp. Cure, vol. 2, 1834, p. 129. 

 Pandeletius Gemminger and Harold, Cat. Coleop., vol. 8, 1871, p. 2208. 

 Pandeletejus Horn, Proc. Amer. Philos. Soc, vol. 15, 1876, p. 86. 

 Pandeleteinus Champion, Biol. Centr.-Amer., Coleopt., vol. 4, 1911, pt. 3, p. 206. 



The originally designated type of Pandeleteius is (pauperculus 

 Gyllenlial) = hilaris Herbst. The monotype of Pandeleteinus is suh- 

 metallicus Schaeffer. The available characters do not seem to the 

 writer to warrant making three genera out of Pandeleteius, for our 

 North American species, as suggested by Champion.^ 



European writers make a great mistake in quoting this genus as a 

 synonym of Sitona Germar, which has as a type lineata Linnaeus. 

 The two genera are very greatly removed from each other by many 



good characters. 



Table of species of Pandeleteius . 



I. Antennal funicle 7-jointed. 



1. Anterior coxae not more widely separated than middle coxse; scrobes passing 



beneath. Beak truncate at apex; nasal plate exceedingly minute or obsolete. 



a^. First joint of antennal funicle longer than the two following joints; basal 



thoracic constriction short and feeble; anterior tibiae straight on inner edge 



almost to apex; nasal plate invisible simplarius Fall. 



a^. First joint of antennal funicle as long as the two following joints. 



fti. Anterior tibiae straight on inner edge almost to apex; nasal plate exceedingly 



minute, triangular hilaris Herbst. 



62. Anterior tibiae strongly sinuate on the inner edge from base; nasal plate 

 invisible or obsolete dentipes, new species. 



2. Anterior coxae separated by about twice the distance between the middle coxae; 



apex of beak with nasal plate distinct, 

 c^ Scrobes long, passing beneath. 

 dK Head between the eyes feebly convex or flat; thorax as wide or very slightly 

 narrower at apex than at base; scales of upper surface variegated, produc- 

 ing a more or less distinct design. 

 e^. Prothorax broadly arcuate at sides; head and beak in front of eyes concave ; 



nasal plate small, ogival, deeply emarginate depressus, new species. 



e^. Prothorax feebly arcuate at sides. 

 p. Beak not separated from head by distinct transverse impressions; alter- 

 nate elytral intervals only slightly elevated; general color gray; nasal 

 plate short and very broadly triangular, very shallowly arcuately 



emarginate cinereus Horn. 



/2. Beak separated from head by strong transverse impression; alternate 

 elytrai intervals elevated; scales of upper surface brownish with a 

 more or less metallic luster; nasal plate broadly elliptical, small. 



sublropicus Fall. 



d2. Head when viewed laterally, very convex; thorax cup-shaped, distinctly 



wider at apex than at base; scales of uniform greenish metallic color; 



nasal plate small, shallowly crescentiform submetallicus Schae&er. 



c2. Scrobes short, nearly straight, not passing beneath; form large and robust. 



robustus Schaeffer. 



II. Antennal funicle 6-jointed; head and beak in front of the eyes concave; nasal 



plate with margin rimmed, convex, basally emarginate rotundicoUis Fall. 



iBiol. Centr.-Amer., Coleopt., vol. 4, 1911, pt. 3, p. 186. 



