REHN AND HEBARD /O 



individually as much in length as in the other species of the genus. 

 The supra-anal plate of the female is similar to that of the male 

 but more obtuse. The form of the ovipositor is fairly uniform, 

 being always straight except in a few individuals which show the 

 faintest decurvature, while the relative depth shows little varia- 

 tion and the apex is always ventral. As a general rule the ovi- 

 positor is slightly shorter than the caudal femur, two specimens, 

 however, showing a difference in the length in favor of the ovi- 

 positor of as much as 2.1 to 7.6 miUimeters. The degree of dif- 

 ference in the length in favor of the femoral length appears to 

 increase southward, but our evidence is not conclusive on this 

 point. The subgenital plate of the female shows no noteworthy 

 variation in its distinctive form. The prosternal spines vary in 

 length from mere nodes to aciculate spines of medium length, 

 w^hile the mesosternal lobes range in form from distinctly acute- 

 angled to rectangulate, the immediate apex faintly mammillate. 



The females from Holly Springs and Winona, Mississippi, are 

 noteworthy in having relatively shorter and broader ovipositors 

 than is usual in the species. The specimens are, however, repre- 

 sentative of this form, although they may indicate a variation 

 developed from the more usual type at this extreme point of the 

 range of the species. The two females from Meridian, Missis- 

 sippi, are similar in this respect to more eastern specimens. 



Color- Xotes. — The color variations found in this species are 

 essentially those occurring in most of the forms of the genus, in 

 general a range of the body color from ochraceous tones to dark 

 umber shades, as well as diminution or intensification of the shin- 

 ing blackish fuscous area on the lateral lobes of the pronotum, the 

 two features in no way correlated. The difference from the other 

 species appears to be that but very rarely does the blackish fus- 

 cous color appear on the pleura or any of the abdominal segments, 

 w^hich almost invariably remain of the general tone. The minute 

 "pepper and salt" character of the pattern is indicated in all the 

 specimens seen. 



In certain individuals, most of which are from the southern 

 states, a longitudinal series of blackish fuscous quadrate spots 

 are indicated along the line on which the traces of the lateral 

 carinae of the abdomen are situated, more particularly ventrad 



TRANS. AM. ENT. SOC, XLII. 



