682 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.49. 



on the outer carina in the apical two-thirds with bluntly acute conical 

 teeth, mostly separated by distances about equal to their own basal 

 width, the inner caripa similarly armed, the teeth slightly more acute; 

 fore and middle tibiae just as described under P. ohesus, except the 

 middle ones are armed above with two or three spurs on each side in- 

 stead of with two on one side and one on the other; hind tibiae barely 

 perceptably bowed in the apical half, the dorsal spurs no longer than 

 the tibial depth, the apical pair separated from the preceeding by a 

 distance equal to about the length of one of them; between each of 

 the apical four pairs of dorsal spurs there are from three to four 

 acutely conical teeth, between the two basal pairs there being two 

 or three more; apical calcars moderate, the ventral outer one no 

 more than one-haK as great in general built than the median one; 

 dorsal calcar a little longer than the median one, slightly longer than 

 the apical dorsal spur, the uiner one the longer, the outer one a little 

 longer than the tibial depth, by actual measurement being about 

 one-fourth longer; beneath the hind tibiae are armed with three very 

 small spurs situated m the apical third on the median line. 



Length, pronotum, 4.5 mm.; fore femora, 4.5 mm.; hind femora, 

 12 mm. 



Female. — Known only from the nymph and showing no essential 

 differences from the male. The very short ovipositor of this speci- 

 men, which is apparently in the last instar, indicates a corresponding 

 shortness in the adult. 



Eolofype. — Male, Mount Hood, Oregon, Cloud Cap Inn, altitude 

 5,837 feet, August 19, 1910, Morgan Hebard collector; allotype, 

 female, immature. Hood River, Oregon, June, 1890, Washburn 

 collector. 



Holotype in Hebard collection; allotype in collection of the United 

 States National Museum, Cat. No. 19463. 



In the large number of serrations between the dorsal spurs of the 

 hind tibiae this species approaches quite closely the species of the 

 genus Ceuthophilus, more so than any other species of Phrixocnemis 

 known to me. 



Regarding the type-specimen of the present species, Mr. Hebard, 

 the collector, Avrites as follows: 



Under bark of log among scattered conifers near timber line, elevation 6,300 feet. 



PHRIXOCNEMIS NEOMEXICANUS Scudder. 



This species, as stated under CeuiJiopMlus, the genus under which 

 it was described, is a true Phrixocnemis. Besides the holotype, the 

 United States National Museum possesses two immature females, 

 apparently ahiiost full grown, one bearing the same data as the 

 holotype and the other from Durango, Colorado, June 26, 1899, 

 E. J. Oslar collector; a female, also unmature, from Albuquerque, 



