378 gundlach's work on the odonata of cuba 



Material examined: Scf, 7 9, Maine, New Jersey, Pennsylvania and 

 Indiana. 



This species has been recorded from as far south as Georgia 

 and Louisiana. No attempt has been made to study this well 

 known species exhaustively. 



Enallagma pollutum (Hagen) (Plate XXXIII, figs. 2, 5, 6, 16, 17; plate 



XXXIV, fig. 26.) 

 Agrion pollutum Hagen, Sjai. Neur. N. Am., 83, 1861. 

 Enallagma pollutum Selys, Bull. Acad. Belg., (2), xli, 527, 1876. 



Calvert, Trans. Amer. Ent. Soc, xx, 239, 1893 (in 

 part only). 



cf . Superior appendages in profile view, with the apical margin subequal 

 to the inferior margin, concave; in dorsal view, the intero-iuferior lamella not 

 reaching as far caudad as the level of the siipero-internal subapical hook. 



Nasus black, without pale markings except the narrow yellow or orange 

 margins. 



Frons: pale color of the anterior surface not attaining the small yellow or 

 orange spot immediately anterior to the median ocellus. 



Pale postocular spots cuneiform, not confluent with the pale color of the 

 rear of the head. 



Middle prothoracic lobe in dorsal view predominantly black, a yellow or 

 orange spot each side, no median twin spots or stripes. 



Width of black mid-dorsal thoracic stripe .53-.63, of pale antehumeral 

 .25-.28. of black humeral .37-.42 mm. 



Second lateral thoracic suture with a black stripe on the upper five-sixths or 

 more of its length. 



9 . Lateral end of me.sostigmal lamina pale, margined with black of the 

 humeral stripe which extends slightly on to the lamina. 



No mesepisternal tubercles. 



Width of the black mid-dorsal thoracic stripe .56-. 63, of the pale ante- 

 humeral .28-.42, of the black humeral .28-.35 mm. 



Second lateral thoracic suture with a black stripe on the upper five-sixths 

 or more of its length. 



Black on dorsimi of al;)dominal segment nine of almost uniform width from 

 anterior to posterior edge of segment. 



Abdomen cf 23-26, 9 23.5-26; hind wing d" 13-16.5, 9 15.5-19; costal 

 edge of stigma, front wing, d^ .42-.7, 9 .52-.7 mm. 



Material examined: Florida (no precise locality), 2 6^, 2 9 , (Acad. Nat. Sci. 

 Phila.). Enterprise, April 16, P. Laurent, 19, (Acad. Nat. Sci. Phila.). 

 Charlotte Harbor, Mrs. A. T. Slosson, Ic?, in her coll. Miami, March 27, 

 April 3 and 4, 1901, P. Laurent, 2cf , 1 9, (Acad. Nat. Sci. Phila.). Biscayne 

 Bay, Mrs. A. T. Slosson, 1 cf , 1 9 , in her collection. All these localities are in 

 Florida. 



The female from Enterprise has longer hind wings (19 mm.) 

 than any other seen ; these, its locality and date of collection render 

 it a priori likely that it is conspecific with the male from the same 



