Ripiphorus mutchleri Rivnay 1929

Rhipiphorus mutchleri new species
The nearest ally of this species is Rh. californicus. It differs from that in having the dominant color of the abdomen yellow, whereas in californicus it is brown:. the tibiae of Rh. mutchleri are curved and broad; and in general it is a larger species than Rh. californicus.
Head and thorax black, abdomen and elytra yellowish-red, legs, tip of pygidium and some small areas along dorsal margins of sternites and spots on first two or three tergites brownish-black; front legs and all tarsi yellow, legs otherwise brownish. Head punctate, sparsely pubescent, vertex rounded, punctate, with suture or small carina; front slightly concave, clypeus truncate or slightly emarginate. Antennae 10-segmented, short, pectinate, rami decreasing in length toward apex. Pronotum punctate, with smooth median line and two shining areas on each side, base broadly rounded. Elytra broad, entirely yellow, shining, finely punctate. Wings hyaline, with smoky band along the middle. Pygidium broad, triangular, punctate along sides, smooth and usually concave in middle, although this concavity may be obsolete. First segment of hind tarsus as long as the others combined and slightly thicker than the others.
Length, 6 to 7.5 mm.
Holotype. — Female, Ormsby County, Nevada, July, (Baker). [American Museum of Natural History.]
Distribution. — The description was made from five females collected by Baker, Ormsby Co., Nevada. Four of these, including the Holotype, are from the Charles Palm Collection, American Museum of Natural History. One is in the U. S. National Museum, Washington, No. 41866, and one female in the Schaeffer Collection labeled "Cal."
Variation. — The amount of brownish-black along the dorsal margin of the sternites varies in the individuals. In some the spots are confluent with each other. In others they are small. In some individuals only the first two tergites have brown patches while in others four or five are marked with brown. The color of the legs is not of great specific value since it varies in individual specimens.
It gives me much pleasure to name this species in honor of Mr. Andrew J. Mutchler who has always been ready to offer helpful suggestions and advice regarding this paper in the course of its preparation.

Ripiphorus mutchleri is a species of wedge-shaped beetle in the family Ripiphoridae. It is found in North America.