1913.] NATURAL SCIENCES OF PHILADELPHIA. 441 



Thomasville, Ga. 

 Averages of series. 



cf cf 9 9 



Length of body 6 . 8 (6 . 1-7 . 8) 7 . 1 (6 . 1-8 . 2) 



Length of pronotum 1.7(1.6-1.9) 1.8(1.7-2. ) 



Caudal width of pronotum 2 . 2 (2 . 1-2 . 4) 2 . 2 (2 . -2 . 4) 



Length of tegmina 4 . 2 (4 . -4 . 5) 2 . 8 (2 . 6-3 . 3) 



Length of caudal femur 5 . 4 (4 . 8-5 . 8) 5 . 6 (5 . 2-6 . ) 



Greatest width of caudal femur 2 . (1.8-2.3) 2.1 (1 . 8-2 . 4) 



Length of ovipositor 4.5 (3.9-4.8) 



Gainesville, Fla. 

 Extremes of series. 



cf d^ 9 9 



Length of body 5.9 8. 6. 7.4 



Length of pronotum 1.2 1.7 1.6 1.8 



Caudal width of pronotum 1.9 2.3 2 . 2.6 



Length of tegmina 3.2 3.9 2.2 2.8 



Length of caudal femur 4.8 6. 4.9 6.1 



Greatest width of caudal femur 1.7 2.3 1.7 2.4 



Length of ovipositor 4.2 6.4 



Homestead, Fla. 



cf d' d^ 9 9 



Length of body 6.3 6.1 6.5 7.7 7.6 



Length of pronotum 1.6 1.7 1.8 1.8 2. 



Caudal width of pronotum . 2 . 2. 2.2 2.2 2.5 



Length of tegmina 3.7 3.6 3.8 2.4 2.7 



Length of caudal femur 5.6 5.2 5.5 5.9 5.8 



Greatest width of caudal 



femur 2. 2. 2.1 2.2 2.4 



Length of ovipositor 4.8 6.1 



Although the variation in size and proportions is well demon- 

 strated by the above measurements, we find the species to vary but 

 little in its distinctive color pattern and tegminal structure. Over 

 the distribution of ambitiosus there is no gradual increase or decrease 

 in size, local conditions governing such variation ; this is shown by 

 the extremes given for the series from Gainesville, Fla., which series 

 averages rather large, but contains not only the largest, but also the 

 smallest specimens before us. 



Color Notes. — The general coloration ranges from cinnamon to 

 clove brown tinged with tawnj^, frequently more or less flecked with 

 a darker shade and occasionally with grayish, which gives to certain 

 females a rather' close superficial resemblance to N. maculatus. 

 Both extremes are represented by numerous specimens in the series 



