8 
THE PAN-PACIFIC ENTOMOLOGIST 
locale; except, VII-1977, R. Lenczy (8); VII-28-75, Potts and Potts (23); VI1-15/16-75, G. H. 
Nelson (5); VII-23/24-1976, G. H. Nelson (62). (Deposited in CAS, USNM, Howden, Nelson, 
Lenczy, Potts, Hardy.) 
Diagnosis: P. monahansensis keys to hammondi or diffracta, 
depending upon the dentition of the anterior tibiae (bidentate or tri- 
dentate). From hammondi, monahansensis may be distinguished by 
the longer antennal club (length 2.75 times or less length of basal 
segments in hammondi, 2.75 times or greater [usually ± three times] in 
monahansensis), position of the teeth on the anterior tibiae (all more 
apical in monahansensis ); and suberect to erect long hair over disc of 
prothorax. From diffracta, monahansensis is distinguished by the long 
antennal club (2 times or less in diffracta), evenly cylindrical maxillary 
palp (flattened dorsally in diffracta) and apically more expanded 
clypeus. 
Polyphylla speciosa Casey 
Polyphylla rufescenta Tanner 1928:276,N EW SYNONYMY 
We have recently seen a series of specimens taken at Zion National 
Park, which display in every respect the characters described by 
Tanner for his unique male. The “edentate” condition is believed to 
be derived from wear, as is the case in some individuals in the series 
above. 
Literature Cited 
Fall, H. C., 1928. A Review of the Genus Polyphylla. Proc. Entomol. Soc. Wash. 30(2): 30-35. 
Gordon, R. D., 1974. Additional Notes on the Genus Glaresis. Proc. Biol. Soc. Wash. 
87(12): 91-94. 
Gordon, R. D. and O. L. Cartwright, 1977. Four New Species of Aegialia (s.str.) (Coleoptera: 
Scarabaeidae) from California and Nevada Sand Dunes. J. Wash. Acad. Sci.: 
67(1): 42-48. 
Hardy, A. R., 1971. The North American Areodina with a Description of a New Genus from 
California. Pan-Pacific Entomol. 47(3): 235-242. 
Hardy, A. R., 1973. A New Species of Phobetus. Pan-Pacific Entomol. 49(2): 127-131. 
Hardy, A. R., 1974. A New Species of Cyclocephala Latreille from California Sand Dunes. 
Pan-Pacific Entomol. 50:160-161. 
Hardy, A. R., 1974. Two New Species of Pseudocotalpa Hardy. Pan-Pacific Entomol. 50: 
243-247. 
Hardy, A. R., 1974. Observations on the Mating Behavior of Pseudocotalpa giulianli Hardy. 
Coleopt. Bull. 30(3): 301-302. 
Hardy, A. R., 1976. A New Species of Anomala Samouelle from California Sand Dunes. 
Coleopt. Bull. 30(4): 365-367. 
Hardy, A. R., 1977. Observations on Some Rare Scarabaeidae Mainly from California. 
Coleopt. Bull. 31(1): 91-92. 
Hardy, A. R. and F. G. Andrews, 1974. Observations on Megasoma with Behavioral Notes 
on Some Lamellicorn Beetles Associated with Sand Dunes. Pan-Pacific 
Entomol. 50(2): 124-128. 
Howden, H. F. and A. R. Hardy, 1971. Generic Placement and Adult Behaviorof the Genus 
Leptohoplia. Proc. Entomol. Soc. Wash. 83(3): 337-341. 
Tanner, V. M., 1928. The Coleoptera of Zion National Park, Utah. Ann. Entomol. Soc. 
Amer. 21: 269-290. 
Young, R. M., 1976. Polyphylla Harris in America, North of Mexico. Part I: The Diffracta 
Complex. Trans. Amer. Entomol. Soc. 93: 279-318. 
