A REVISION OF NORTH AMERICAN CHRYSOBOTHRINI 



207 



Mountains, April 12, 1935 (G. P. Engelhardt) ; July 7 (Hubbard and 



Schwarz). Globe; Roosevelt Lake (D. K. Duncan). 

 California : San Bernardino County, May-July ; Los Angeles County (D. W. 



Coquillett). Banning, May-July (H. F. Wickham). Cabazon, June 21, 



1909 (E. D. Ball). 

 Texas: Brownsville, June 7, 1904 (H. S. Barber). 

 Lower California : San Felipe (G. Beyer). 



Horn described the species from material collected in Texas and 

 Arizona by Aug. Merkel, and Chamberlin (1926) designated the type 

 locality as Texas. 



Hosts. — Adults were reared from mesquite collected at Sabino Can- 

 yon, Ariz., by Geo. Hofer. Burke (1918) records the species as min- 

 ing the bark, sapwood, and heartwood of dying and dead stumps, 

 limbs, and trees of catclaw (Acacia greggii Gray) and mesquite (Pro- 

 sopis juliflora (Swartz) De Candolle) in Arizona, and states that it 

 may kill the trees. Young adults were taken from the wood during 

 February. Van Dyke (1917) reports collecting many adults of this 

 species in California, in burned mesquite bushes in a section of a 

 valley which had been burned off by the Indians. 



The sculpture and coloration on the dorsal surface of the body are 

 rather constant in the specimens examined, but the emargination on 

 the anterior margin of the clypeus is variable in depth, and in a 

 few specimens seen is very weak. The sides of the pronotum are 

 sometimes slightly sinuate posteriorly, and occasionally the transverse 

 carina on the front of the head in the male is indistinct. The length 

 is from 15 to 19.5 mm. 



(91) Chrysobotheis gemmata LeConte 



(Fig. 87; fig. 124, B) 



Chrysobothris gemmata LeConte, 1858, Acad. Nat. Sci. Phila. Proa, p. 67; 1858, 

 Acad. Nat. Sci. Phila. Jour. (ser. 2) 4 : 34 ; 1859, Amer. Phil. Soc. Trans, (n. s.) 

 11 : 237 ; Gemminger and Harold, 1869, Cat. Coleopt., v, 5, p. 1425 ; Horn, 1886, 

 Amer. Ent. Soc. Trans. 13: 104, 105-106, pi. 6, figs. 178-182; Waterhouse, 

 1887, Biol. Cent.-Amer., Coleopt., v. 3, pt. 1, p. 36; Van Dyke, 1918, Ent. News 

 29 : 58 ; Burke, 1918, Jour. Econ. Ent. 11 : 211 ; Chamberlin, 1926, Cat. Bupre- 

 stidae North Amer., p. 156; Obenberger, 1934, in Junk (pub.), Coleopt. Cat., 

 pt. 132, p. 634. 



Figure 87. — Clypeus (A), and last visible abdominal sternite of male (B) and of 

 female (C) of Chrysobothris gemmata. 



