THE CANADIAN ENTOMOLOGIST. 161 NEW COLEOPTERA FROM THE SOUTH -WEST.— IV. BY H. C. FALL, PASADENA, CALIF. The greater number of species made known in this, the fourth paper* of miscellaneous descriptions of Coleoptera from the South-west, are from the Peninsula of Lower California. These descriptions were written some eight or nine years ago, and are based upon material received through Mr. Chas. Fuchs, from the California Academy of Sciences. It was the intention, when sufficient material had been obtained, to publish a third supplement to the " Coleoptera of Baja California," by Dr. Horn, but the source of supply gave out very soon after the receipt of the first install-ment. One of the species described at that time — Saxitiis Hor?iii — was shortly after received from San Diego, Cal., and this name appears in my List of the Coleoptera of Southern California, the description, however, being accidentally omitted. It is high time that this No men nudum was made good, and it is thought best to present also the description of the other new species written at the same time. The opportunity is taken to add a few other new species collected by Mr. Beyer in the same region, together with two or three more from various sources. Canthydrus levis, n. sp. — Rather broadly oval, more narrowed behind, colour yellowish-testaceous, elytra darker, upper surface polished throughout. Head impunctate, thorax subimpunctate, except for a line of rather fine punctures along the front margin, and a somewhat numerous group of coarser but feebly impressed punctures irregularly placed in the median basal region. Elytra with intermixed fine and somewhat coarser, feebly impressed punctures, which are slightly better defined in two discal lines bearing fine short hairs. Beneath almost impunctate, except the sternal plates, which are strongly, rather coarsely punctate, each puncture bearing a posteriorly-directed bristle-like hair. The prosternum is broadly rounded anteriorly, and bears at the middle, on either side of the central line, one long and several much shorter spiniform bristles, set subtrans-versely. The transverse lines of punctures of the abdominal segments are almost wanting. Length, 2 mm. One example, San Jose del Cabo. Type in the collection of the California Academy. This species is very easily distinguishable from any previously described from our fauna, and I am unable to identify it with any of the Mexican forms mentioned in Sharp's Monograph. *The third paper of this series was published in the Can. Ent., Vol. XXXIX (1907), page 235. May, 1909
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