LIBELLULA. 153 



cous, the immediate base paler ; female with the apex of the wings 

 subinfuscated ; pterostigma black ; raembranule gray ; eighteen 

 antecubitals ; fourteen postcubitals; five or four discoidal areolets. 



Length 47 millira. Alar expanse 85 millira. Pterostigma 5 

 millim, 



Hab. Pecos River, Western Texas (Capt. Pope). 



Similar to Lib. luctuosa, but the body is more robust, the spot 

 at the base of the wings is clearer, or fenestrated. The wings of 

 the female are also a little narrower. 



7. L. Julia! 



Libellula Julia UUerl Proc. Acad. PMlad. 1857, 88, 5. 



Fuscous, villose ; front lurid ; thorax gray above, each side 

 nigro-fuscous, the sides brown ; feet black, base of the femora 

 rufous ; apex of the abdomen attenuated, apex of the dorsum fus- 

 cous, the sides with yellowish spots ; appendages short, yellowish- 

 rufous; wings hyaline, a small line at base, and a triangular spot 

 behind the line at base, upon the posteriors, fuscous ; pterostigma 

 narrow, fuscous ; membranule white. (Male.) 



Fifteen antecubitals; twelve postcubitals; three discoidal are- 

 olets. 



Length 42 millim. Alar expanse 72 millim. Pterostigma 3 

 millim. 



Hab. Fort Steilacoom, Paget Sound, Washington Territory ; 

 Wisconsin (Dr. Hoy). This is the North American analogue of 

 the European Lib. fulva, and belongs to the same group ; the 

 colors are defaced by alcohol. 



8. L. pulchella ! 



Libellula pulchella Drury, Ins. I, 115; pi. xlviii, fig. 5. Ramb.! Neuropt. 

 54, 30. Duncan, Introduct. 292, pi. xxix, fig. 2. — Libellula versicolor 

 Fab.! Ent. Syst. II, 380, 29 % ; Syst. Ent. 423, 17; Sp. Ins. I, 523, 

 22 ; Mant. Ins. I, 337, 2^.— Libellula bifasciata Fab.! Syst. Ent. 421, 

 3 9 ; Sp. Ins. I, 520, 3 ; Mant. Ins. I, 336, 3 ; Ent. Syst. II, 374, 4. 

 Burm.! Handb. II, 862, 81 ; Blanch. Hist. Ins. 58, 9. Say, Journ. 

 Acad. Philad. VIII, 20, Q.— Libellula confusa Uhler! Proc. Acad. 

 Philad. 1857, 87, 3 (teneral). 



Fuscous, villose ; dorsum of the thorax grayish-fuscous, sides 

 with two oblique yellow marks ; abdomen stout, the apex attenu- 

 ated, fuscous, each side with a yellow stripe, or pruinose (^ 

 adult); feet black, or with the base of the femora rufous (9); 



