Vol. xxiv] 



ENTOMOLOGICAL NEWS 



3*3 



which partly fills the cleft when the prothorax is viewed from 

 in front, a median pair of slender approximated mesothoracic 

 processes just behind the prothorax. $ Abd. seg. 8 blue with 

 a transverse dorsal basal black or metallic green line or nar- 

 row stripe, 9 and 10 entirely pale blue; superior appendages 

 nearly as long but not as high as the inf. apps., seen in profile 

 view. 5 Abd. seg. 8 pale blue with a transverse basal stripe 

 and a lateral band reaching caudad therefrom dark metallic 

 green or black, or, the dorsum of 8 almost entirely blue- 

 black, sides interiorly pale (i9), 9 blue with a triangular 

 black band each side in proximal half of segment, 10 en- 

 tirely blue. Abd. $ ? 20-22; hind wing $ 13-14.5, 

 $ 14-15 mm gracilis 



N. irene. 



N. gracilis. 



N. integricollis. 



N. speciosa. 



Figs. 1-4, hind part of prothorax of females viewed from in front and a little above, 

 the head of each specimen having been removed to see the prothorax clearly ; the dotted 

 lines show the boundaries of the median metallic green and the lateral pale green or 

 yellow. Figs. 5-8, dorsal views of abdominal segment 10 and appendages of males. 

 Figs. 9-12, profile views, right side of the same. All the figures drawn to the same scale 

 with the camera lucida, specimens illuminated by direct sunlight. 



N irene, 9. Lehigh Gap. Pennsylvania, July 13, 1900; cf . Berlin, New Jersey, July 

 17, 1893. N. gracilis, 9, Lehigh Gap, Pa , June 29, 1897; cf , Sherborn, Massachusetts, 

 June 24, 1895 (co-type of Morse). ^V. integricollis n. sp , 9, Enterprise, Fla., April 18, 

 1896 (type); cf, Haulover, Fla., March. .A", speciosa, 9 cf, Robenhausen, Switzerland, 

 July 3, 1904. 



Hind margin of prothorax of 9 trilobed, no slender mesothor- 

 acic processes as described for gracilis but the mesostigmal 

 laminae are larger and more projecting than in that species. 

 $ Abd. seg. 8 dark metallic green, a mid-dorsal spot on the 

 posterior fourth or less and the sides inferiorly pale blue, 9 

 pale blue with a triangular dark metallic green spot on each 



