REUX AND HEBARD 71 



Measurements {in millimeters) — Continued 



d" J J -j'^ 3^ J-S 5 



Valley of Black Mountain, 



North Carolina, Paratype .. . 19.5 9 5.8 5.2 18.8 



Jones' Knob, North Carolina, 



6000 feet, Paratype 18.5 8.7 6.4 6 17.7 



Jones' Knob, North Carolina, 



Paratype 18.8 8.7 6 5 17.9 



Pinnacle Peak, Georgia, Para- 

 typed' 19.8 7.6 6 4.4 18 



9 



Washington County, Virginia . . 22.7 8.9 6.3 20.2 ^s 



Valley of Black Mountain, 



North Carolina, Paratype .. . 20.6 8.9 6.1 20 19.4 



Jones' Knob, North Carolina, 



Paratype 21.3 8.8 6.3 .... 19 19 



Lake Toxaway, North Carolina, 



Type 20 8.3 6 18.5 18.5 



Lake Toxaway, North Carolina, 



Paratype 23.2 9.9 5.7 19.6 17.6 



Geographic Variation. — Our material is too scanty to reach any 

 definite conclusions regarding this tj^pe of variation in the present 

 species. However, as we have stated above under Morphological 

 Notes, the individuals with the relatively greatest cephalic con- 

 striction of the pronotal disk are from the more northern or more 

 elevated localities and those Avith the least constriction from the 

 lower or more southern ones. Whether additional material will 

 give more light on this point remains to l)e seen. The female 

 from Washington County, Virginia, has the subgenital plate 

 more narrowly emarginate than the other material, but the form 

 is typically that of moniicola. 



Biological Notes. — From the material at present available this 

 species is seen to reach maturity as earlj^ as July 28 (Linville, 

 North CaroHna) and to occur as late as October 7 (Jones' Khob). 

 We know the insect is adult at Jones' Knob from August 19 to 

 the last date given above. The only information we have on the 



25 Ovipositor broken in this specimen. 



TRANS. AM. ENT. SOC, XLII. 



