A REVISION OF NORTH AMERICAN CHRYSOBOTHRINI 13 



side, the median lobe slightly produced and broadly rounded; disk moderately 

 convex, shallowly, broadly, transversely depressed behind the middle, with an 

 obscure, oblique carina at posterior angles; surface densely, deeply foveolate- 

 punctate, with a more or less distinct, interrupted, longitudinal, smooth, median 

 space. 



Elytra distinctly wider than pronotum, nearly twice as long as wide; sides 

 parallel from humeral angles to apical third, then obliquely converging to the tips, 

 which are conjointly broadly rounded; lateral margins coarsely serrate; disk 

 regularly convex, shallowly, transversely depressed at base, but without longi- 

 tudinal costae ; surface glabrous, finely, densely scabrous, and more or less trans- 

 versely rugose. 



Abdomen beneath nearly glabrous, finely, densely granulose, sparsely, deeply 

 reticulate, with anterior margins of sternites impunctate; last visible sternite 

 broadly truncate at apex, with a short, acute tooth at outer angles. Prosternum 

 nearly glabrous, coarsely, densely punctate, more or less rugose ; anterior margin 

 truncate. Tibiae straight, unarmed on inner margins. 



Length 16 mm., width 6 mm. 



Redescribed from the female holotype in the collection of J. N. Knull. 



Male. — Differing from the female in having the head bright green behind the 

 clypeus, and the posterior tibia armed with a number of very small teeth on the 

 inner margin. 



Type locality. — Tucson, Ariz. 



DISTEIBUTION 



From material examined : 



Akizona: Tucson, August 28, holotype. Santa Rita Mountains (D. K. Duncan). 



Prescott (Mason collection). 

 California : Bard, July 30, 1920. 



Host. — Unknown. 



Scarcely any variation was observed in the few specimens examined, 

 except that the median tooth on the anterior margin of the clypeus is 

 absent in some specimens. The length is from 14 to 16 mm. 



(6) Actenodes acornis (Say) 

 (Fig. 110, F) 



Buprestis acomis Say, 1836, Amer. Phil. Soc. Trans, (n. s.) 6: 159-160; 1859, 

 Complete Writings (LeConte ed.), v. 2, pp. 592-593; Balliere Bros. ed. 



Chrysobothris acomis Melsheimer, 1853, Cat. Coleopt. U. S., p. 64. 



Actenodes acomis LeConte, 1859, Amer. Phil. Soc. Trans, (n. s.) 11: 241; 1863, 

 Smithsn. Inst. Misc. Collect. 140 : 43 ; 1873, Acad. Nat. Sci. Phila. Proc. [25] : 

 332; Hubbard and Schwarz, 1878, Amer. Phil. Soc. Proc. 17: 656; Horn, 1886, 

 Amer. Ent. Soc. Trans. 13: 118; Ulke, 1902, U. S. Natl. Mus. Proc. 25: 21; 

 Schaeffer, 1904, N. Y. Ent. Soc. Jour. 12: 209; Felt, 1906, N. Y. State Mus. 

 Mem. 8 (2) : 751; Smith, 1910, N. J. State Mus. Rpt. 1909: 293; Blatchley, 

 1910, Coleoptera of Indiana, p. 702; Woodworth, 1913, Guide to California 

 Insects, p. 195 (identification?) ; Nicolay, 1919, Brooklyn Ent. Soc. Bui. 14: 

 19 ; Knull, 1920, Ent. News 31 : 7 ; 1922, Canad. Ent. 54 : 83 ; Good, 1925, Ent. 

 Soc. Amer. Ann. 18: 262, 272, pi. 8, figs. 6, 12 (wing venation) ; Knull, 1925, 

 Ohio State Univ. Studies 2 (2) : 35-36, pi. 5, fig. 3; Chamberlin, 1926, Cat. 

 Buprestidae North Amer., pp. 41-42; Leonard, 1928, N. Y. (Cornell) Agr. 

 Expt. Sta. Mem. 101: 361; Obenberger, 1934, in Junk (pub.), Coleopt. Cat., pt. 

 132, p. 660 ; Brimley, 1938, Insects of North Carolina, p. 172. 



Buprestis punctata Melsheimer, 1806, Cat. of Insects of Pennsylvania, p. 46 (no 

 description). 



Chrysobothris punctata Melsheimer, 1844, Acad. Nat. Sci. Phila. Proc. 2: 147; 

 Melsheimer, 1853, Cat. Coleopt. U. S., p. 64. 



Chrysobothris rugosula Dejean, 1833, Cat. Coleopt., ed. 2, p. 80 ; 1836, ed. 3, p. 90 

 (no description) ; Gory, 1840, Monog. Buprestides, sup. 4: 177, pi. 30, fig. 172. 



( ?) Belionota calif omica Motschulsky, 1859, Soc. Imp. Nat. Moscou Bui. 32 (2) : 

 184-185, pi. 4, fig. 18; LeConte, 1863, Smithsn. Inst. Misc. Collect. 140: 43; 



