VOL. 54, NO. 1, JANUARY 1978 
5 
Figs. 11-15, Polyphylla, new species. Fig. 11, P. avittata. Fig. 12, P. anteronivea. Fig. 13, 
P. pottsorum. Fig. 14, P. erratica. Fig. 15 , P. monahansensis. Fig. 11-14to same scale. 
front with close to contiguous to “shingled” oval white scales, with semierect to erect 
testaceous hairs; vertex shining, impunctate, glabrous. Prothorax with close, to “shin¬ 
gled” oval white scales, slightly denser medially, medio-laterally, forming trivittate pro- 
thoracic pattern normal for genus; few erect to semierect white to testaceous hairs at 
anterior margin. Scutellum “shingled” with oval white scales. Elytra with oval white 
scales, which are dense and “shingled” anteriorly; becoming scattered laterally, pos¬ 
teriorly; forming broken “vittae”. Elytra lacking hairs. Pygidium with close white oval 
scales. Ventral surfaces nearly completely covered (except sutures) with oval white 
scales. Thorax ventrally with erect white hairs. Antennal club 2 (linear) to 3.3 (along curve) 
times length basal segments. Anterior tibiae strongly tridentate. 
Variation in paratypes: Length 23-27 mm, width 8-9.5 mm. Most pronounced difference 
is in the squamal vestiture, which may be nearly absent (abrasion?) to the semivittate con¬ 
dition described above (Fig. 6). 
Female: Unknown. 
The name refers to the erratic elytral pattern. 
Holotype male, (CAS #13099) and three male paratypes: California, San Bernardino Co. 
[Death Valley National Monument], Saratoga Springs IV-1974, Dusk, D. Giuliani colIr. 62 
