MYRMELEON. 235 



nse yellow, clavate, annulated with black; prothorax short; thorax 

 all yellow; above and beneath bilineated with black; prothorax 

 with the anterior part yellow ; abdomen clothed with white hairs, 

 yellowish, dorsum trilineated with black; feet yellow, the whole of 

 the fourth article of the tarsi, and the apex of the last one, black; 

 wings broad, yellowish-hyaline, pterostigma obsoletely whitish ; 

 veins yellow, thickly sprinkled with fuscous, especially so at the 

 median and submedian nerves ; base and apex of the transverse 

 veins of the costal space, and forks at the posterior margin, fuscous; 

 posterior wings only at the median nerve, sprinkled with fuscous. 



Length to tip of wings 30 millim. Alar expanse 54 millim. 



Sab. Pecos I#ver, Western Texas, July (Capt. Pope); North 

 America (Collection of Hagen). 



22. M. blandus ! 



Myrmeleon blandus Hagen ! 



Yellow, varied with black ; head yellow ; last article of the 

 palpi fuscous ; a spot between the antennas, trifid, black ; vertex 

 yellow, black anteriorly, above with two transverse black lines, the 

 hind one interrupted; antennae black, annulated with yellow; pro- 

 thorax short, yellow, with two black stripes upon the middle, which 

 are anteriorly, exteriorly incised, beneath each side with a black 

 stripe ; meso- and metathorax yellow, lineated with black ; abdo- 

 men yellow, clothed with white hair, above narrowly trilineated 

 with black ; beneath black ; feet yellow, all the articles of the 

 tarsi annulated with black at the apex ; wings hyaline, broad, 

 pterostigma obsoletely yellow ; veins yellow, interrupted with 

 black, especially at the subcosta ; transverse ones almost black. 



Length to tip of wings 22 millim. Alar expanse 40 millim. 



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



23. M. bistictus ! 



Myrmeleon bistictus Hagen ! 



Testaceous, varied with piceous; face testaceous, last article of 

 the palpi fuscous ; a fuscous spot between the antennas ; antennas 

 clavate, black, annulated with testaceous ; vertex opaque, testa- 

 ceous, with some transverse piceous marks ; prothorax short, tes- 

 taceous, vvith two stripes in the middle, and a lateral one each 

 side, piceous; meso- and- metathorax piceous, varied with testa- 



