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Show 94 Utah Academy of Sciences, Arts and Letters mens have been tions or [Vol. XV, carefully compared with Caudall's description and no excep are apparent. Caudell gives the distribution of the species as "the northern part of the country from the Rocky Mountains east ward." Kirby (6) gives the distribution as North America, but does not cite authority for quite such broad territory. Utah collections of Diapheromera femorata (Say): Brigham Young University collection modifications 1 specimen, Zion National Park, Utah. Sept. 1927, V. M. Tanner, collector 2 specimens, Salt Lake City, Utah. Date and collector unknown 1 specimen, no data Zion National Park collection2 specimens, no data Parabacillus coloradus (Scudder) The original description of this species which is publjshed in "The Pro ceedings of the Davenport Academy of Sciences," (4) is not available in Utah, but Caudell reproduces the original description in his paper on "Walking sticks of the United States," published in "Proceedings of the U. S. National Museum." (5) Scudder's description is made from a single female specimen. Caudell studied a series of male and female specimens from Nebraska, Colo New rado, Mexico, Arizona, and California, and added descriptive matter justified by observing a larger series in both sexes. Utah specimens have been carefully checked with descriptions given by Scudder and Caudell and some descriptive matter having reference to eyes, vertex and carinations of the head and the carinae of the thorax and abdomen added. The eyes are decidedly convex. The -diameter anterioposterly is greater than the diameter dorsoventrally. The margins are rounded. The eyes are situated just posterior to and just below the base of the antennae on the side of the head. They are nearly mid-way between the vertex and the ventral side. I The fastigium of the vertex is formed by two carinae that arise broadly contiguous between .ie antennae. They diverge posteriorly to a point approxi mately even with tue posterior margin of the eye, then converge, subjoining the median carina often obliterating at this point. The two lateral carinae of the fastigium are joined by two transverse carinae within the fastigium. The first transverse carina joins the divergent arms of the fastigium just anterior to the point where they converge. This carina is often obliterated in the middle. The second transverse carina joins the arms of converging the fastigium at a point just posterior to where they begin to converge. It is from this carina that the dorso-rnedian carina arises. Carinae of the head. There are five sub-parallel carinae extending pos teriorly on the head, as follows: The dorso-rnedian carina which arises from the second transverse carina of the fastigium and extends This carina fades out after posteriorly. usually reaching a point midway between the anterior and posterior end of the head. It reappears at the posterior end of the head either as a true carina or as a linear depression. The less dorsal of the lateral carinae arise above the margin of the eye and extend posteriorly the full length of the head. The more dorsal of the lateral carinae arise dorsal to the base of the antennae and extend posteriorly the full length of the head. . 3 Lent to the authors by P. P. Patraw, Superintendent, Zion National Park. |
