﻿144 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lOO 



as wide at occipital carina as at eyes; occipital carina separated from 

 head by a sharp groove, sharply reflexed, about 0.35 as wide as the 

 flagellum, unsculptiired; propleurum about 1.0 as long as the meso- 

 scutum is wide, with small, weak separated punctures and apicaUy 

 rugose; lateral lobe of mesoscutum poHshed or mat, with moderately 

 close medium-sized punctures and more or less distinct transverse 

 rugosity; ovipositor sheath about 2.2 as long as the forewing. 



Black. Tegula piceous to black; fore and middle legs with their 

 tibiae, tarsi, and apices of their femora usually brownish, the tibiae 

 with a subbasal or basal whitish mark; hind basi tarsus of female 

 marked with white. Abdomen varying in color from black with 

 only the second and third tergites partly ferruginous to ferruginous 

 with only the first and the apical tergites black. The more extensive 

 ferruginous markings are more common in females than in males. 

 Apical 0.12db of ovipositor sheath white. 



This species is very close to the European R. jaculator (Linnaeus, 

 1758). It differs in having the temples a little longer and more 

 weakly convex, the occipital carina not quite so high, and the fine 

 wrinkling of the top of the head weaker. It may eventually prove 

 to be only subspecificaUy distinct. 



Specimens. — 14 cT, 36 9, from Arizona (Oak Creek Canyon and 

 Parker Creek in the Sierra Ancha) ; British Columbia (Robson and 

 Wellington) ; California (Agnew Meadows in Madera County, Carr- 

 ville in Trinity County, Convict Lake, Dark Creek in the San Jacinto 

 Mountains, Forest Home in the San Bernardino Mountains, Glen 

 Blair in Mendocino County, Gold Lake in Sierra County, Guerne- 

 ville in Sonoma County, Meadow VaUey in Plumas County at 5,000 

 to 6,000 feet. Mount Diablo, Mountain Home Canyon in San Ber- 

 nardino County, Murphys in Calaveras County at 2,500 feet, Pinon 

 Flat in the San Jacinto Mountains, Placerville, Richardson Spring 

 in Butte County, Siskiyou County, Sobre Vista in Sonoma County 

 at 2,500 feet. Wood Creek at 8,000 feet, and Yosemite Valley); 

 Montana (Lake Roman in Lake County); Nevada (Carson City); 

 Oregon (Corvallis, Fall Mountain Lookout TraU in Grant County 

 at 5,200 to 6,000 feet, Grave Creek at Reuben Creek 20 miles north 

 of Granite Pass, Horse Lake in the high Cascade Mountains of Lane 

 County, Kane Creek 5 mdes west of Gold Hill at 2,000 feet, Klamath 

 Falls at 4,175 feet, Lick Creek Ranger Station in the Wallowa Na- 

 tional Park, Mnton, Modoc Point in Klamath County, Portland, 

 Sparkes Lake at 5,428 feet in Deschutes County, and 20 miles west 

 of St. Helena); and Utah ("Fks" Logan Canyon). Dates of collec- 

 tion are mostly from May 12 to August 15. Those outside this range 

 are: AprU 21 at Mount Diablo, Calif.; May 2 at Parker Creek, Sierra 

 Ancha, Ariz.; and August 23 at Lake Roman, Lake County, Mont. 



