NEW SCARAB GENERA FROM LOWER AND SOUTHERN CALIFORNIA (Coleoptera) By Lawrence W. Saylor University of California I owe to Dr. E. C. Van Dyke and Dr. F. E. Blaisdell the opportunity of studying the present new genera, both of which exhibit rather interesting structural characteristics. The types of both are deposited in the collections of the California Academy of Sciences. Chaunocolus Saylor, New Genus. Facies robust-oval, pilose above. Head with an erect horn, clypeus with sides parallel, apex reflected. Thorax with two high oblique tumosities each side of middle, the surface between deeply concave ; front margin thin but not membranous. Elytra much less than twice the length of the thorax, sides without membrane. Antennae 9-segmented ; club 3-segmented, the segments close-fitting. Eyes from above flat, sunken, inconspicuous. Ligula free from mentum. Abdominal segments except last, closely connate, the sutures entirely efifaced, the last segment free. Claws long, with a minute acute tooth at center. Front femora bidentate. apparently without an inner spur. Front coxae conical. Hind and middle tibiae with two apical spurs. All tarsi but little longer than their respective tibiae; first segment hind tarsus but little longer than second. Propygidium and fifth ventral segments not connate but separated as in Onccrus, the last spiracle very minute and apparently below the suture. Genotype : Chaunocolus cornutus, New Species. Chaunocolus cornutus Saylor, New Species. Robust-oval, rufocastaneous with somewhat piceous tinge, strongly shining, pilose above. Head with a stout erect horn at center-base of front, the vertex and front each side of the horn impunctate and polished, along the eye margin and genae with long erect hairs ; clypeal suture not obvious but surface some-what transversely obliquely carinate at apparent position of the clypeal suture ; clypeus elongate, sides parallel, apex broadly evenly rounded ; apex greatly reflexed, sides slightly reflexed ; clypeal disc with dense verv-coarse punctures, with short erect hair. Antennae 9-segmented, second segment globose, third but little longer than second, subcylindrical ; fourth shorter than third ; fifth and sixth segments very short and globose ; club oval, sub-equal to segments two to six combined. Thorax with sides evenly 35
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