MORGAN HEBARD 



389 



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

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

 robust. Sulcation of vertex and frontal costa weaker and broader. Eye 

 twice as long as infra ocular sulcus, Pronotuni with medio-longitudinal 

 carina weaker on prozona. Tegmina similar (but showing more individual 

 variation than in male sex, in the series very slightly overlapping to sejiarated 

 by a minute interval, individuals with the most elongate tegmina having 

 these distinctly broad lanceolate in form). Prosternal spine blunter. Ovi- 

 positor valves short, with distal curvature decided. 



Measuremeiits {in tnilliinelers) of extremes 



Caudal 



Length Length width of Length Width Length of 



■7, of of pronotal of of caudal 



O body pronotuni disk tegmen tegmcn femur 



Vivian Creek, Cali- 

 fornia, ^y/w 14 3.2 2 3 2 7.9 



Vivian Creek, Cali- 

 fornia, parati/pe)^ 

 (6) 13.5-1.5 3.1-3.7 2-2.3 2.9-3.7 1.7-2.1 7.9-8.1 



High Creek, Cali- 

 fornia, (3) 15-16 3.7-3.6 2.2-2.3 3.7-4 2-2.2 8.4-8.8 



Santa Ana Canyon, 



California '. . . 14 3.5 2.1 3.7 2 8.3 



San Jacinto Peak, 



California (5) .. . 13.2-14.5 3.2-3.5 2-2.3 3-3.7 1.7-2 7.7-8.4 

 9 



Vivian Creek, Cali- 

 fornia, a??o^(//x'. . 17 3.9 2.7 3.9 2.1 9.8 



Vivian Creek, Cali- 

 fornia, pairitypes 

 (34) 16.5-19.7 3.8-4.1 2.4-2.8 3.7-5 2.2-2.8 9.3-10 



High Creek, Cali- 

 fornia (13) 18.5-21.5 4.2-4.8 2.8-3.2 3.9-4.9 2.2-3 10-11.6 



South Fork of Santa 

 Ana River, Cali- 

 fornia 16.5 4.7 2.9 4.9 2.9 11 



San Jacinto Peak, 



California (4) .. . 19.5-20 4.3-4.6 3-3.2 4.8-5.4 2.7-2.9 10.6-9.8 



It is of interest to note that, on the slopes of San (jorgonio Peak, the mdi- 

 viduals taken at 7200 feet (Vivian Creek) average smaller than those taken 

 at 9000 feet (High Creek). In the great majority of species of Orthoptera 

 studied we have foimd size decreasing with an increase in altitude, if eleva- 

 tion showed any influence on the size of the indivitlual. 



Coloration. Head buckthorn brown, occiput very dark nuuniny brown, 

 broad postocular bars shining blackish brown. Pronotum V(>ry dark muininy 



TR.\XS. .\M. E.\T. SOC, XLVI. 



