50 PROCEEDINGS OP THE ACADEMY OP 



Elytra yellow, with the base, tip, sutura and large oblong marginal spot 

 black ; 



head, thorax and body black ; antennae and legs yellow, '09. Middle States. 



21. a n d re a e. 



head, thorax and body yellow : abdomen blackisb, -10. Georgia. 



22. g r a m m i c a. 



Elytra ferruginous, with the suture and margin blackish ; 



black, mouth and anterior feet testaceous ; hind tibiae and tarsi testaceous, 

 with incisures black ; anus piceous, '09. Georgia. . . 23. a n c i 1 1 a. 



black, head and part of thorax reddish yellow, anterior feet yellow, hind 

 tibia? and tarsi testaceous, with incisures black, -10 "12. Middle and Southern 

 States. . . . . . . . . . . 24. varians. 



ferruginous, black limb of elytra very narrow; abdomen, and sometimes hind 

 coxa? and pectus blackish, -9 -11. Middle and Southern States. 



25. u s t u 1 a t a. 



Elytra without distinct markings ; pubescence brownish gray ; 



Piceous, bead, thorax and anterior legs ferruginous ; humeri with an indefi- 

 nite ferruginous spot; anus rufo-piceous, -09 -11. Middle and Southern 

 States . . . 26. s e m i u s t a. 



Piceous, head, apical margin of thorax and anterior legs ferruginous; anus 

 rufo-piceous, 09. S.Carolina. ..... 27. impatiens. 



Entirely blackish piceous, -09. Middle and Southern States. 



28. n ig r ic ans (Mels.) 



Blackish piceous ; head ferruginous; antenna?, anterior feet, middle tibiae and 

 tarsi, base of hind tibiae and tarsi, and margin of abdomen testaceous ; first joint 

 of hind tarsi with a rudiment of 4th ridge, -12. Middle and Southern States. 



29. ruficeps. 



Ferruginous ; sides of pectus and elytra darker ; hind tibiae with a rudiment 

 of a 3d, first juint of tarsi with a rudiment of a 4th ridge, -13. San Diego, 

 California 30. nubila(Zec) 



C. Hind tibiae with three short, oblique, parallel ridges. 



a. First joint of hind tarsi with three, second with two oblique ridges; elytra 

 not bauded. 



Black, linear, elytra with numerous rounded spots of ashy sericeous pubes- 

 cence, -09 "11. Middle, South, and West. States. 31. p u 8 t u la t a (Mels.)* 



Black, linear, elytra with lines of brownish gray pubescence, confluent be- 

 hind, -12. Kentucky 32. convict a. 



Nearly linear, ferruginous ; elytra black, with the suture and margin nar- 

 rowly ferruginous ; base ferruginous, broader at the humeri, -19. Pa., Ky. 



33. f u 3 c i p e n n i s (Mels.) 



Slightly cuneate ; beneath ferruginous ; abdomen and sides of breast dusky, 

 above black ; mouth, anterior Darrow inteirupted band of thorax, large tri- 

 angular basal spot of each elytra, and suture and margin behind the middle 

 yellow, -15. Lake Superior. ..... 34. p ec t or al i s (Lee. ) 



Nearly linear, entirely black, pubescence brownish gray, - 11 15. Lake 

 Superior and Minnesota. . ....... 35. morula. 



Nearly linear, fusco-ferruginous, pubescence brown sericeous, ridges of hind 

 tibiae longer and more oblique than usual, -12 -15. Southern States. 



36. a m b u s t a. 



b. First joint of hind tarsi with four, second with two oblique ridges ; elytra 

 not banded. 



Slightly cuneate, piceous, covered with brown sericeous pubescence, # 12 *15. 

 Middle, Southern and Western States 37. u n i c o 1 o r. 



Slightly cuneate, very black, pubescence fine and dark, mouth and anterior 

 half of thorax ferruginous, -13. Middle States. . 38. marginal is (Say.) 



* In one specimen I observed a rudiment of a fourth tibial ridge. 



[Feb. 



