AMERICAN COLEOPTERA. 



199 



a.— Anterior spot of elytra reduced in size, reaching only to the fifth stria ; 



side margin of prothorax white; sellatus Suffr. 

 ,8.— Anterior spot of elytra larger, connected with some yellow narrow 



basal spots; prothorax with side margin and two basal spots white; 



pretiosus Mels. 

 y,— Elytra yellow with an indistinct dark transverse band behind the 



middle; 9- 

 (5.— Elytra; entirely yellow; 9 ; luieipennis Mela. 

 4.— Prothoracic flanks obtusely toothed under the antennae; scutel acutely 

 triangular; ^ ; 7iva7nmifer S. 

 Prothoracic flanks distinctly toothed under the antennae ; scutel rounded 

 behind; body broader, and elytral striss finer; % 9; 3.5 mm.; Florida, 



(Hubbard and Schware) 5. croceipeiiiiis n. sp. 



5.— Color various; elytra vittate; prothoracic flanks obtusely toothed under the 



antennae; 3—4 mm.; Atlantic region 6. lituratiis Fabr. 



a.— Black, prothorax yellow, with three black spots, the mi.ldle one 



larger; litaratus Fabr.; varies 1, black, vittte of elytra confluent; ca.s««.? 



Mels.; recurvus Say; 2, prothorax black, side margin yellow; 3, black, 



elytra with a subapical yellow spot. 

 /?,— Black, head and prothorax ferruginous, elytra vittate; lativittis Germ. 

 ^.—Ferruginous, elytra black with yellow stripes; b-mttatus. 



§ 2. Cryptocephalus (gen.)- 

 Prosternum elevated at or near the tip forming a short process in -^ , nearly 

 flat in 9; black, elytra with four red spots, (rarely entirely yellow); 

 strise ten composed of large punctures, fifth and eighth not dislocated ; 



antennse very long and slender 2. 



Prosternum with an apical lobe or cusp, longer in %, than 9 4. 



Prosternum broadly truncate in front % 9 '''• 



2. — Glabrous and shining above ^• 



Finely pubescent above and beneath; prothorax finely punctured; elytra 

 with the base, sides as far as the middle, and apical spot red ; % with 

 prosternal process directed backwards: hind margin of prosternum 



nearly truncate ; % 9; 4— 5.5 mm.; Ks. ; Tex 7. mucoreus Lee. 



3.— Elytra with an oblong humeral spot extending along the sides, and an apical 



spot red; 3.5—5 mm.; Atlantic region 8. qna<lrimaculatus Say. 



a.— Humeral spot occupying the whole base; % 9; ?io<a(;!<s Oliv.,* Fabr.? ; 



i-maculatus Say, Suffr. 

 ^._Huraeral spot extending across the base and along the sides, uniting 

 with the apical spot, and leaving a saddle-shaped black spot, and a 

 small marginal blotch behind the middle; 9; Minn.; Ks. ; Fla. 

 y.— Humeral spot not extending across the base; apical spot wanting, 

 d.— Elytra entirely orange yellow; % ^ i fuloipenyiis Raid. 

 Elytra with a broad transverse red spot in front of the middle, extending 

 along the sides to the base; also an apical spot; notatus Suflfr. (Fabr.?) : 



distinctus Hald.; 3-4 mm.; D.C.; Fla 9. distiuctiis Hald. 



u.— Inner margin of anterior spot abruptly curved; % 9- 

 /i.— Inner margin of anterior spot oblique ; 9 . 



* I have discarded the specific name notatus as leading only to confusion; it 

 seems with the uncertainty of types equally applicable to Nos. 8 and 9. 



