Kinsey: Gall Wasp Genus Cynips 
345 
I collected in the Santa Rita Mountains were yellow-brown, 
but even they were not the russet color of the more northern 
material. 
The numerous mountain ranges in Arizona between Globe 
and the Mexican boundary are for the most part of limited 
extent and peculiarly isolated from each other by much lower 
deserts. While only a few miles may separate any two of the 
ranges, the deserts that lie between are ecologically so dif- 
ferent from the higher elevations that they give many in- 
stances among both plants and animals of the isolation of 
distinct races or varieties. It is consequently not surprising 
to find that russa occurs in the Santa Catalina, while nuhila 
occurs in the Whetstone Mountains (southwest of Whetstone 
station) about forty miles away; and since the Rincon Moun- 
tains will probably be found to have the northern variety — for 
the Rincons are nearly continuous with the Santa Catalinas — 
russa may be found to extend to within 15 or 20 miles of nubila 
in the Whetstones. One who has seen this desert-and-moun- 
tain country will, however, not be surprised to find additions 
to the list of plants and animals which find the deserts barriers 
to ready migration and hybridization. 
Cynips nubila variety incompta (Kinsey) 
agamic form 
Figures 58, 299-300, 399 
Andricus incomptus Kinsey, 1920, Bull. Amer. Mus. Nat. Hist. 42: 306, 
figs. 17, 18. Houard, 1928, Marcellia 24: 72, figs. 143-145. 
Diplolepis nubila err. syn. Weld, 1926 (in part), Proc. U. S. Nat. Mus. 
68 (10) : 27. 
[no name] Kinsey, 1926, Introd. Biol. fig. 277b. 
FEMALE. — Almost uniformly light yellowish or brownish rufous, 
only slightly darker in places; mesonotum posteriorly punctate with 
smooth surfaces between the punctations, anteriorly rugoso-punctate ; 
parapsidal grooves distinctly continuous, as distinct and broad an- 
teriorly as posteriorly, rather sharply divergent anteriorly; scutellum 
only finely rugose; mesopleuron more smooth and shining, almost naked 
dorsally; abdomen hairy only on the second segment antero-laterally; 
infuscation on the first abscissa of the radius limited, not heavy, 
not extending more than a fifth of the length of the radial cell; enlarge- 
ment at the tip of the second abscissa of the radius of only moderate 
size, more or less symmetrical about the tip of the vein; areolet mod- 
erately large; smoky patches in the cubital cell of moderate si^e only, 
