MYRMELEON. 233 



17. M. rusticus! 



Myrmeleon rusticus Hagen ! 



Piceous, robust ; front nigro-piceous, shining ; mouth and be- 

 neath yellowish ; eyes narrowly encircled with yellow ; palpi lute- 

 ous, the last article of the labial ones thickened, fusiform, nigro- 

 piceous ; antennas clavate, obscurely annulated with yellow ; vertex 

 obscure ferruginous, each side with a yellow point ; occiput fus- 

 cous, opaque, with two middle, interrupted stripes and a lateral, 

 flat shining spot each side ; prothorax short, fuscous, the anterior 

 margin, and three obsolete stripes, yellowish ; meso- and meta- 

 thorax margined with yellow ; abdomen luteo-fuscous, the posterior 

 margin of the segments, and sometimes a dorsal middle line, yel- 

 lowish ; feet yellowish, femora and tibiae with a stripe beneath and 

 an apical ring, fuscous ; apex of the tarsi fuscous ; wings narrow, 

 hyaline, pterostigma a little whitish ; veins yellowish-white, the 

 median and submedian nerves distinctly interrupted with fuscous. 



Length to tip of wings 30 — 33 millim. Alar expanse 50 — 60 

 millim. 



Hab. Pecos River, Western Texas, August 4 (Capt. Pope) ; 

 Matamoras ; Florida (Norton). Is this M. crudelis? 



18. M. insertus! 



Myrmeleon insertus Hagen ! 



Piceous, slender; face black, shining, each side and the mouth 

 yellow ; palpi yellowish, the last article fuscous ; antennas piceous, 

 a little annulated with yellow, clavate ; vertex opaque piceous, 

 with a transverse, interrupted yellow band upon the middle ; occi- 

 put opaque, with two streaks upon the middle, interrupted, and 

 flat, shining spots upon the sides, fuscous ; prothorax luteous, 

 obsoletely trivittate with piceous ; meso- and metathorax hoary, 

 narrowly margined with yellow ; abdomen piceous, margin of the 

 segments posteriorly luteous ; femora fuscous, the base and an 

 apical ring yellow ; tibiae yellow, within and an apical riug brown- 

 ish-black ; tarsi with brownish-black rings; wings long, narrow, 

 acuminate, pterostigma obsoletely white ; veins white, the median 

 one distinctly, and the others obsoletely interrupted with fuscous. 



Length to tip of wings 33 millim. Alar expanse 58 millim. 



Hab. Cuba (Poey) ; Port au Prince, St. Domingo. 



Chanvallon reports that Myrmeleons are frequently found in the 



