THK m:ak bkktlks. 1121 



KKY TO IMIIA.NA SPECIES OF C'KYPTOC'EIMIAIAS. 



(/. Klytni Itl.ick, cicli witli ;i luiinorMl mikI Mpicn) rcddisli spot. 



/). Surnirc liiiciv pulu'scfin .-ili.iv c niid liciicnl h. •Jlli;t. isasai.is. 



Iih. Surlnfc ;iImi\c ^l.ilirdus and shining. 



c. Lar.i.M'r. I .". niiii. : Imiiu'ral spot of clylia usually cxtciidiiiL,' nearly 

 or wholly across the haso. L'(ir>.'.. QiAi»uiMAcri,ATi s. 



cc. SiualU'i-. L'.r. :;..". unu. : liunicral spot oldoiii:. a little wider behind. 



•_MI(;C>. (,)l ADHll'IKX. 



iiii. l':i\li-a net black, or it" so withoiil distinct liniiieral ami ai'ical spots. 



(I. rrostcriiuin with an apical lohe or ciisp. loiiuer in male than in fe- 

 male. 

 c. lOlytra with numerous spots. 



/. 'I'liorax reddish: elytra e;icli with seven spots. 



1!(m;T. (MiTi'i.A'n'S. 

 /■/'. Thorax yellow, with black (U- brown stripes; elytra with siiots 

 more or less united to t'orui bauds. 'JOCS. i.ia comioi^vs. 



cc. I'^lylra without distinct spots. 



ti. i:iytra yellow, eacli with two Itroad. oblicpie black or brown 

 striiies. one of these sometimes .absent. lldC.'.i. venustus. 



.'/.(/. l':iylra black with si(U's and apical marLcin yellow. 



lldCiDa. var. cinctu'e.nnis. 

 ','//. I'r s'ernuni br. adly Innuate in front in b tli sexes. 

 //. Thorax smooth or hnely imnctured. 



/. i:iyti-a with three nai'row. sometimes ill-defined, stripes. 



/. Th(u-;ix <lensely i)unetured. marked with three brown stripes 



or siiots; leuiiith 3.5-i.8 mm. I'OTO. trivittatus. 



//'. Thorax si);irsely pnnctured. usually without spots; length 3- 



;>.-) nun. insertus. 



/'/. Elytra with spots or cross-bands. 



/,-. I.ar^rer. 4 7 mm.; elytra ]tale yellow, with three interrupted 

 brown bands. 2071. mutahii.i.s. 



A7,-. Sin.iller. :\ 4.'2 mm.; elytra brown with yellow spots. 



2072. BADIUS. 



lili. Thorax very coarsely punctnred. 



/. Dull yellow; elytra with three broad, ill-detined reddish bands; 

 lartrer. ^5-4.^. mm. 2073. tinctus. 



//. Dull reddish-yellow; elytra with dusky suture; smaller, 2 mm. 



STRIATULUS. 



2<)(;4 (COl.".). Cryptocephalus basalis Snffr.. I.lnnea. Entom., VII, 1853, 54. 



Kobust. cylindrical. Pdaek. shining; elytra with a red spot on hu- 

 merus which extends .acM'oss the base and along the sides to nuddle and 

 another on apex. Thorax tiuely and densely pnnctui-ed. l^lytra with ten 

 regular rows of 1 ii-ge punctures. Ilind margin of iirosteruum nearly Irun- 

 cate. Length 5.5-t;.."> nun. 



Spencer County; rare. ^lay 24. l>eaten I'rotu oak shiaibs. 

 Known heretofore only fi-(uii K.insas and Te.xas. Ijisted as (\ inu- 

 coreus Lee. Kesenil)les (juadriniaculatiis, but laro'cr and distin- 

 gtiished by the pubescence of elytra and the dense punctures of 

 thorax. 



