1910.] NATURAL SCIENCES OF PHILADELPHIA. 639 



size variation, but very strongly approaches retusus in the longer 

 limbs and ovipositor. This tendency is so great that the specimens 

 are almost intermediate in character and can hardly be referred more 

 to one than to the other. 



As this interesting case can well be demonstrated b}^ figures, the 

 following measurements made from average individuals, when taken 

 with those previously given by us, 18 show the extent of geographic 

 size variation in this species: 



Asheville, N.C. Raleigh, N.C. \\ aycross.Ga. 



Length of body 23 mm., 24.5 mm., 26 mm. 



Length of pronotum 7 " 7.2 " 7.8 " 



Length of tegmen 33 " 35 " 35.5 " 



Length of caudal femur 19 " 20.8 " 23.5 " 



9 



Asheville, N.C. Raleigh, N.C. Waycross,Ga. 



Length of body 29. mm., 24.5 19 mm., 29.5 mm, 



Length of pronotum 6.8 " 6.8 " 7.5 " 



Length of tegmen 33.5 " 34. " 41.5 " 



Length of caudal femur 21.8 " 24.2 " 28 



Length of ovipositor 32.5 " 35 " 38.5 " 



True N. retusus has been recorded from "Georgia," Way cross and 

 Thomasville, Ga., St. Augustine and Chokoloskee, Fla. The record 

 of atlanticus at Thomasville, Ga., made by the authors, 20 is errone- 

 ous, due to the non-association of the sexes, the record of atlanticus 

 being based on males and that of retusus from the same locality on 

 the easily recognizable female. A male of atlanticus from Montgomery 

 County, Virginia, in the Hebard collection, has also been examined 

 by us. 



Orchelimum militare Rehn and He bard. 



A single male of this species was taken in high grass in moist spots 

 in pine woods at Winter Park on August 26. The specimen is 

 distinctly smaller than Georgia individuals, but otherwise it is quite 

 typical. The range of the species is carried a considerable distance 

 northward by the capture of this specimen. 



Orchelimum glaberrimum (Burmeister), 



A pair of this species was taken in meadow land at New Berne, on 

 August 24, a single female in high grass in wet spot in pine woods at 



"Supra, p. 304. 



18 Hodv considerably shrunken. 



J0 Proc. Acad. Nat. Sci. Phila., 1904, p. 795. 



