H Ob 73 Vol. 53, pp. 109-118 October 7, 1940 PROCEEDINGS OF THB BIOLOGICAL SOCIETY OF WASHINGTON^'^ ^■^^'•'/~^AX. TEN NEW NEOTROPICAL BEI'lTLES OF THE SCARAB GENUS PHYLLOFHAGA. BY LAWRENCE W. SAYLOR. In this paper are described the following new species of Phyllophaga: Phyllophaga ( ? Chirodines) oaxena, new species. Male. — Elongate oval. Dull rufooastancoiis, the thorax slightly shining. Above entirely clothed with short, dense, suberect, brownish hairs, those of head a little longer and more erect. Clypeus and front coarsely, rugosely, very densely and contiguously punctate. Clypeus very short, somewhat semicircular in outline though transverse, the apical margin slightly reflexed. Antenna urii-colorous, 10 segmented; club very slightly longer than the entire stem, segments 3-7 each slightly transverse. Thorax with sides entire, and straight, before and behind the moderate median dilation, with several scattered cilia; base without marginal line; front angles rect-angular to nearly subacute; hind angles obtusely angulate; disc with fine, dense, regularly placed punctures over the entire surface, with a faint suggestion of a median longitudinal carina. Elytron without stria except for the well-developed sutuial stria, the latter obsolescent at base; disc subrugosc, punctured as thorax. Pygidium convex, pruinose, with very fine, dense and regularly placed punctures, each with a short erect hair; apical margin explanate and somewhat reflexed. Abdomen with short, dense, suberect jiile; middle widely and shallowly concave; 5th segment flattened, the apex arcuate and faintly produced, the disc with a very dense patch of fine, though somewhat transverse, granulations; (ith nearly as long as the 5th, and raised a little above it, — disc of Gth im])ressed transversely, apex carinate and ciliate, the base sinuate at middle and raised and pro-duced slightly, the center of the simiation reaching apically and nearly attaining the apical margin of the segment. First segment hind tarsi shorter than the second. Hind til)ial spurs acute and unequal, one two-fifths longer than the other, and slightly distorted. Transverse carina on mid tibia only about half complete, external margin not serrate; carina of hind tibia very faintly indicated and not entire. Segments 1-4 of front tarsus with the inner apex of each segment prolonged into a broadly rounded 24— Proc. Biol. Soc. Wash., Vol. 53, 1940. (109) OCT 9 \m
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