458 ENTOMOLOGICAL NEWS. [May, 



to the humeral suture, which is broadly black, interrupted at the middle ; 

 sides of thorax bright yellow with black stripes, varying greatly in dif- 

 ferent individuals. The male figured has the black markings more de- 

 veloped than has any of the other three specimens taken. Abdomen 

 yellowish or reddish, obscure markings above on 1-3 and posteriorly ; 

 9 with a mid-dorsal black spot ; 2 with a lateral black spot ; an inferior 

 lateral stripe on 3-10. Coxae and trochanters yellow ; legs black. Wings- 

 hyaline, pterostigma brown, paler ventrally. 



(^. Similar; frons without brown or with less than in the male. Ab- 

 dominal segments 8 and 9 narrowly black above. Wings orange at base, 

 the color scarcely or not reaching the first antecubital. 



Sheep Creek, Albany Co., August 6, 2 $ $ , 2 $ $ . One 

 of the males has two cross nerv'ures in the lower basal cell of 

 all four wings. Dr. Calvert has examined a specimen of each 

 sex, and I am indebted to him for the identification of the 

 species. 



13. Sympetrnm madidnm Hagen. (PI. IX, fig. 13). 

 Ab. J* 26 ; h. w. (^ 28. 



Sheep Creek, Albany Co., July 23. 



14. Sympetrnm corraptnm Hagen. 



Little Medicine, Carbon Co., July 30, one 9 . 



EXPLANATION OF PLATE. 



Figs. I, 2. Enallagma anna n. sp., male abdominal appendages, i dor- 

 sal, 2 profile view. Sheep Creek, July 23. 



I^'igs. 3. 7. E. annexum Hagen, id., profiles. Sheep Creek. 3 July 23, 

 7 August 6. 



Figs. 4, 6. E. ^r^farww Hagen, id., 4 dorsal view, 6 profile. Queretaro, 

 Max., 5900 feet, Dec. 12, 1898. 



F'K»- 5. 9. lo- ^- Calverti Morse, id., 5 dorsal view, 9, 10 profiles. 

 Sheep Creek, August 6. 



Figs. 8, 12, 14. Sympetrnm scotictim Donov., male, 8 profile of abdomi- 

 nal appendages, 12 color pattern of right side of thorax, 14 pro- 

 file of genitalia, also hamule seen from in front. Sheep Creek,. 

 August 6. 



Fig. II. Somatochlora clongata Scud. var. minor Calvert, male, profile 

 of abdominal appendages, showing also the tip of the left superior 

 appendage ; i \a ventral view of inferior appendage. Sheep Creek, 

 Atigust 6. 



Fig. 13. Sympetrnm madidum Hag., male, genitalia seen obliquely from 

 beneath and in front. Sheep Creek, July 23, 



