M7RMELE0N. 231 



fuscous points; pterostigma small, white; only the apex of the 

 costal space biareolated. 



Length to tip of wings 20 millim. Alar expanse 35 millim. 



Hah. South Carolina (Zimmerman). 



* * Costal space with one series of areoles. 

 % No spurs. 



13. M. pygmaeus ! 



Myrmeleon pygmaeus Hagen ! 



Fuscous, spotted with yellow ; face black, with yellow spots ; 

 palpi yellow, the last article black ; occiput yellow, spotted with 

 black ; antennae short, black, annulated with yellow, the club large, 

 almost orbicular, luteous, varied with fuscous ; prothorax short, 

 fuscous, varied with yellow; abdomen short, the dorsum pointed 

 with fuscous, with black hair, and white villosity, venter luteous ; 

 feet short, pale, spotted with black ; apex of all the tarsal articles 

 black ; wings short, the apex very much dilated, the reticulation 

 peculiar, simple, hyaline, pterostigma snow-white, brown interiorly: 

 veins fuscous, the longitudinal ones interrupted with white. 



Length to tip of wings 15 millim. Alar expanse 26 millim. 



Hah. Mexico (Deppe). 



A very singular species ; as yet, the smallest of this genus. 



% % Spurs of the anterior feet as long as the first 

 tarsal joint. 



14. M. immaculatus ! 



Myrmeleon immaculatus De Geer, Mem. Ill, 365, tab. xxvii, fig. 8 ; Burm. ! 

 Handb. II, 994, 5 ; Walk. Catal. 401, 174. 



Brownish-black; face black, shining, yellowish anteriorly; ver- 

 tex opaque, with shining black streaks, in front with a transverse, 

 interrupted stripe, the middle with two interrupted, approximated 

 ones, and each side a small one posteriorly; antennae lurid, clavate, 

 the second article black ; palpi lurid ; thorax fusco-piceous, obso- 

 letely varied with lurid ; abdomen fuscous ; feet yellowish, densely 

 sprinkled with black ; base and apex of the tibiae with a black 

 ring ; tarsi black, the basal article yellowish, with its apex black ; 

 anterior feet obscurer ; wings narrow, long, acute, hyaline, a little 

 cinereous ; veins with white and black interruptions, pterostigma 

 white, black within. 



