306 NATURAL HISTORY BULLETIN. 



Trichodes illustris Horn. A pair was found in the Santa Rita Mts., on 



flowers. 

 Clerus spinol.e Lee. Pinal Mts Most of the specimens were found 



about the decaying flower-stalks of the maguey. 

 C. quadrisignatus Say. Yuma. 

 C. abruptus Lec. Santa Rita Mts. 



PTINID.L. 

 Ptinus fur Linn. Tucson. 

 Tripopitys punctatus Lec. Pinal Mts. Mostly under boards and slabs 



on site of old saw-mill. 

 Hemiptychus sp. Pinal Mts., Tucson. 



Sinoxylon sericans Lec. Tucson, Santa Rita Mts., Yuma. 

 S. sextuberculatum Lec. Tucson. 

 Amphicerus fortis Lec. Yuma. 

 Dinoderus pusillus Fabr. Tucson. 

 Polycaon stoutii Lec. Tucson. At street lights. 

 Lyctus californicus Casey. Yuma. 



LUCANID^E. 



Dorcus mazama Lec. Rather common about the sawmill in the Pinal 

 Mts. 



SCARAB^EID.E. 



Canthon simplex Lec. Tucson Mts. The variety corvinus occurred at 

 Globe. 



C. indigaceus Lec. Santa Rita Mts. 

 At^enius californicus Horn. Yuma. 

 A. gracilis Melsh. Riverside. 



A. haroldi Steinh. Tucson. 

 A. abditus Hald. Pinal Mts. 

 A. desertus Horn. Tucson. 



A. l^eviventris Horn. Tucson. Most of the species of Ateenius are read- 

 ily attracted by light and may be found at street lamps. 



IjRADYCINETUS SERRATVS LeC. TllCSOn. 



Trox suberosus Fabr. Tucson. 



T. punctatus Germ. Pinal Mts. 



T. tuberculatus De G. Tucson. 



Serica elongatula Horn. Pinal Mts., Globe. 



Orsonyx anxius Lec. Yuma. 



Diplotaxis puberula Lec. Globe. 



D. mcerens Lec. Riverside. 



D. punctata Lec. Globe, Tucson. 

 D. pacata Lec. Gila Bend, Tucson, Tucson Mts. 

 D. n. sp. Santa Rita Mts. 

 Listrochelus timidus Horn. Tucson. 

 Polyphylla decemlineata Say. Pinal Mts. 



Anomala sp. Pinal Mts. This species has not been described unless it 

 may be a Mexican form. 



