152 NEUROPTERA OF NORTH AMERICA. 



4. L. saturata ! 



Libellula saturata Uhler, Proceed. Acad. Philad. 1857, 88, 4. 



Reddish-yellow, villose ; feet rufous ; abdomen stout, the apex 

 narrowed ; wings hyaline, the anterior margin and basal half yel- 

 lowish-rufous ; a basal streak, especially to the posteriors, fusco- 

 rufous ; of the female hyaline, with the anterior margin flavescent; 

 pterostigma small, fulvous ; membranule black ; twenty-one ante- 

 cubitals ; fifteen postcubitals ; five discoidal areolets. 



Length 52 millini. Alar expanse 90 millim. Pterostigma 5 

 millim. 



Hob. California, " San Diego trip," Mexico (Collection of 

 Hagen) ; Cordova ; Tampico (Saussure). 



5. L. luctuosa! 



Libdlula luctuosa Burm.! Handb. II, 861, 76. Libellula basalis Say, 

 Journ. Acad. Philad. VIII, 23, 10. _ 



Brownish-black ; front dark metallic blue (adult male) ; thorax 

 with a dorsal yellow stripe, sides brown, marked with fuscous, or 

 brownish-black, pruinose above (adult male) ; feet black, or with 

 the femora rufo-fuscous (9); abdomen brownish-black, dorsurn 

 and venter each side, with a broad yellow stripe, or brownish- 

 black, pruinose above (adult male) ; appendages short, black ; 

 wings hyaline, the basal half blackish-fuscous, the apex sometimes 

 clouded with fuscous, the middle baud in the males broadly mar- 

 gined with milky-white ; pterostigma black ; membranule gray. 



Var. Base of the anterior wings shortly or slightly blackish- 

 fuscous, a basal streak blackish-fuscous. 9 . 



15 19 antecubitals ; 12 IT postcubitals ; four discoidal are- 

 olets. 



Length 38 45 millim. Alar expanse 13 84 millim. Ptero- 

 stigma 4 millim. 



Hob. Pennsylvania ; New Jersey ; New York ; Maryland (Uh- 

 ler) ; Chicago; Washington (Osten Sacken). 



6. L. odiosa! 



Libellula odiosa Hagen ! 



Entirely brassy-black, or, excepting the front, medial thoracic 

 vitta, and each side of the abdomen, which are yellow ; base of 

 the femora rufous (? teneral) ; wings hyaline, the basal half fus- 



