MORGAN HEBARD 



383 



turn, overlapping (varying from subattingent to strongly overlapiMng in the 

 series), lanceolate pads. Furcula represented by two small stout processes, 

 springing from convexities of the tergite, the projecting portions about twice 

 as long as broad with apices rounded. Supra-anal plate shield-shaped, some- 

 what triangulate, surface little specialized, medio-longitudinal sulcus per- 

 current but deep only in proximal two-thirds, lateral portions of plate shal- 

 lowly concave, disto-lateral carinae feebly indicated as nearly i)arallol, low 

 ridges, about twice as long as broad. Cerci distinctly over three times as 

 long as proximal width (varying in the series to three times as long as proxi- 

 mal width), slender, ventral margin almost straight to ai)ical portion where a 

 slight convexity occurs, dorsal margin broadly concave in proximal three- 

 fifths, broadly convex in distal two-fifths to the broadly convex distal margin, 

 the apical portion of the cercus in consequence intermediate in width between 

 the basal and median portions and subspatulate in outline (occasionally speci- 

 mens show this distal spatulation reduced, the distal width being but very 

 slightly greater than the median width; none show the cercus as broad, with 

 apex as truncate as in washingtonianus). Subgenital plate apjireciably, 

 though only slightly, narrower than in washingtonianus, the sides converging 

 to the rather sharply rounded apex, which projects dorso-caudad above the 

 free disto-lateral margins of the plate. 



Allotype. — 9; same data as type. [Helxird Collection.] 

 Agrees with type except in the following features. Size much larger, 

 form much more robust. Vertex broader, similarly shallowly depressed but 

 with lateral carinae weak. Eye one and one-third times as long as infra- 

 ocular sulcus. Prosternal spine heavy, conical, with apex (normally) rather 

 sharply rounded. Ovipositor valves moderately elongate, with distal curv- 

 ature decided. 



Measurements [in viilli)neters) of e.iirenics 



Length Caudal hcjisth 



_^ Length of width of Length Widtli of 



O of pro- pronotal of of caudal 



body notiim disk tegnien tegnicn femur 



iVIoimt Hood, Ore- 

 gon, /ype 17.5 4 2.3 5 2.6 10.2 



Moimt Hood, Ore- 

 gon, paratypes, 

 (103) L5.S-19 3.8-4.9 2.1-2.6 4.1-6 2-3 9.4-11.4 



Blue Mountains, 



Oregon, (8) 17.2-19 4-4.3 2.6-2.4 4.7-6 2.3-2.5 10-10.3 



9 



Mount Hood, Ore- 

 gon, allotype 25 5.3 3.7 7.1 3.3 12.S 



Mount Hood, Ore- 

 gon, paratypes 

 (113) 19.5-27 4.9-5.8 3-3.9 4.9-7.6 2.3-3.5 11.4-13.6 



Mount Hood, Ore- 

 gon, 32£0 feet . . . 26.8 5.4 3.6 7.2 3.3 13.3 



Blue Moimtains, 



Oregon, (5) 23.8-26 4.8-5 3.3-3.5 5.3-6.5 2.9-3 11.8-12 



TRANS. AM. ENT. SOC, XLVI. 



