XEW DRA GOX-FL Y XYMPIIS—XEEDIIA M. 715 



Body short and stout, frequently incrusted and showino- little (olor 

 pattern, little hairy. Head depressed, subquadranoulur. with well- 

 rounded eyes eapping- the antero lateral ano-les, and witii the hind 

 angles rather prominent and very obtuse, and hairy externally, a deep 

 notch in the hind margin between the hind angles. Antenni\? about as 

 long as the head, the relative length of the segments for the ])ase out- 

 ward ])eing as follows: 1: 1.2: 2.5: 2: 1.2: 1: 1. Labium moderate, the 

 hinge reaching posteriori}'- as far as the mesothorax. Median lobe 

 prominent, its bord(M- iineiy spiiudose. Lateral sette 3, preceded bv 

 one or more small spinules. Hook stout, arcuate. 1 have already 

 published a figure of the labium of this species/' 



Thorax stout, not at all depressed. Legs short. Wings reaching 

 posteriorly well over the tifth abdominal segment. 



Abdomen short, slightly tapering, the segments l)eyond the second 

 decreasing successively a little in both length and diameter as far as 

 the ninth; the tenth distinctly longer than the ninth, and emarginate 

 on its apical margin on the dorsal side. Gills oblong, their margins 

 parallel almost to the tip, there tapering suddenly; laterals tri(juetral 

 and concave internally, with a high sinuate external carina extending 

 to the apex; dorsal gill with two less developed carina^ on its sides; 

 all })lackish mottled, with a more or less distinct subapical transverse 

 paler bald, and white tips. 



HYPONEURA LUGENS Hagen. 



Plate XLIl, tig. 5. 



I have already described this species,'^ but without figures. 1 give 

 some figures herewith to aid in comparing with the foregoing nearly 

 allied species of Argia. In Plate XLII, fig. 5, is shown the nymj)!! 

 and also a lateral view of a detached gill lamella. In Plate XLII I. 

 fig, 8, is shown the labium as viewed from within. This form is one 

 of the most generalized of the Af/rio?i/)Ke (.v. sf/:). 



TELAGRION D^CKII Calvert? 



A single full-grown female nymph, collected at (iotha, Florida, on 

 January 1, 1897, by Mr, Adolph Hempel, Its slight form, long 

 abdomen, and moderately long and slender legs seem to foreshadow 

 the proportions these parts have in the adult of the species to which 

 they are here referred, and there is hardly any other species inhabit- 

 ing Florida to which they could be supposed to belong. The wings 

 are unfortunately crumpled within their sheaths, and do not luhnit of 

 an examination of the venation. 



Length, 18 mm. ; gills, 5.5 nun. additional: abdomen. I :'. nun. : width 

 of head, 3 mm.; of abdomen, 1.5 nun. 



"Bull. 68, X. Y. State Musenm, pi. .viv, th^. ri\ni\f. 

 ''P.syche, X, pp. 135,136. 



