SMITHSONIAN MISCPILLANEOUS COLLECTIONS 



VOL. 94 



Mentum without setigerous punctures ; a short length of metepisternal suture 

 almost always visible opposite rear coxa ; rostral sculpture variable ; species 

 west of looth meridian 3. 



Setigerous punctures located on face of mentum, sometimes near sides, and 

 usually about one-fourth distance from apex ; basal margin of elytra more 

 or less prominent, especially laterally, the side margin sinuate just behind 

 humerus (sinuation feeble or wanting in al tenia fits) ; alternate elytral in- 

 tervals elevated (feebly so in crinacciis), the seventh and ninth coalescent 

 some distance from base (about opposite mid coxa) ; anterodistal edge of 

 hind tibia (in front view) less oblique and with only one well-defined row 

 of spines, the corbellary plate, though often discernible, vaguely defined 

 (effaced in alternafns) (fig. i) Paiiscopits Schoenherr (sens. str.). 



^^^^1 "'^''^^ 2 



Figs, i and 2. 



Setigerous punctures located on declivous apical margin of mentum, usually 

 toward sides (not easily seen when mentum is retracted) ; basal margin of 

 elytra not or hardly prominent, side margins not sinuate ; alternate elytral 

 intervals not elevated, the seventh and ninth reaching base independently, or 

 coalescent at base ; anterodistal edge of hind tibia more oblique and with 

 two well-defined rows of spines enclosing corbellary plate (fig. 2) 



Parapanscoptis, n. subg. 



3. Both prothorax and elytra with small, shiny tubercles ; dorsal scales, in part, 



usually green; length, 6-10 mm Pliymatiuus LeConte. 



Elytra without tubercles, the prothorax usually with smaller and less dis- 

 tinctly isolated ones, or rugose tuberculate beneath the scales ; dorsal scales 

 not green (except in johnsoni) ; length, 5-9 mm 4. 



4. Antennal scape, when bisecting eye, reaching its hind margin ; dorsum of 



rostrum, and of front subcontinuous in profile; prevailing color dull brown- 

 ish black 5- 



Antennal scape, which normally is densely coated with scales and setae, not 

 reaching beyond middle of eye ; color usually paler brown, or cinereous 

 mottled with brown (more or less green in johnsoni) ; dorsum of rostrum 

 and of front subcontinuous or discontinuous in profile 6. 



5. Female abdomen 4-segmented, its derm not concealed by the vestiture. Male 



abdomen 5-segmented, hairy and setose, the hairs longer and rather con- 

 spicuous in basal concavity ; antennal scape hairy or setose ; pronotum with 

 usually scanty setae or slender scales, the granular sculpture plainly visible ; 

 some of the serial scales on elytral disk elliptical to sublinear and narrower 

 than the punctures Nochcles LeConte. 



