Vol. Xxiv] ENTOMOLOGICAL NEWS 373 



The True Male of Nehalennia integricollis and N. pallidula, n. sp, 



(Odon.). 

 In describing Xchcilouiia integricollis in the Xe\v5 for July last, page 

 312, from a female type, a male from Haulover, Florida, was doubt- 

 fully referred to this species and the differences, other than sexual, be- 

 tween it and the type were pointed out, page 314. On June 27 and July 

 2, at Malaga, New Jersey, I obtained three pairs of integricollis and a 

 number of other individuals of both sexes. The males so obtained are 

 the true integricollis, are much like the females in color, and conse- 

 quently quite different from the Haulover male. To the Haulover 

 male a nezc name must therefore be assigned, and p.\llidula, in allusion 

 to the narrower metallic green area of the thoracic dorsum is sug- 

 gested; figures 7 and 11, page 313, illustrate the appendages of 

 pallidula male. 



Some additional notes on integricollis follow. The words "Superior 

 appendages $ longer than inferiors," must be stricken out of the 

 character of group I, page 311, as in true integricollis $ the superior 

 appendages are not longer than the inferiors, although this is the case 

 in atrinnchalis, spcciosa, sclysii and pallidula. 



In the recently killed iH/fj;riVo//i,y $ the eyes are olive green above be- 

 coming bluish-green on the middle third and yellowish-green below. 

 Genae below the level of the base of the antennae very pale blue and 

 a slender finger-like prolongation of this color runs upward each side 

 into the dark metallic green of the rear of the head. The anterior 

 surface of the frons, the rhinarium, the bases of the mandibles and 

 the labrum are pale bluish, the last with a transverse basal black stripe. 

 The pale transverse occipital line not enlarged at its extremities. The 

 sides of the thorax and of abdominal segments 1-7 or 8 greenish- 

 yellow, or in the tenerals pinkish. 



In the recently killed S integricollis the eyes are blue-black above 

 and become increasingly paler blue to the under surface. The re- 

 mainder of the head is colored as in the $ described above. The me- 

 tallic green of the dorsum of body generally (includ- 

 ing the head), is darker than in the $ owing, partly 

 at least, to the admixture of more purple. Thoracic 

 dorsum metallic green reaching laterad beyond the 

 humeral suture as in the 5 . Sides of the thorax and 

 of abdominal segments 1-6 pale bluish, of 7 and 8 yel- 

 lowish, or of 8 bluish. Dorsum of abd. seg. 8 dark 

 metallic green with no pale dorsal spots; g and 10 

 blue, 9 with a metallic green stripe on each side of 

 dorsum reaching from base (where they are narrowly 

 confluent with each other) one-half to two-thirds way 

 to the hind end, 10 with a transverse basal black line. 

 Hind dorsal margin of 10 cleft in the middle and spinulose. Appen- 



