MYRMELEONITES. 387 



149. MYRMELEON METUENDUS. 



Piceus, gracilis; caput antice nigrum, vertice fulw piceo maculato, 

 facie testacea nigro bimaculata ; palpi pallidi, labiates apice 

 picei ; antennae nigrte, thorace breviores ; prothorax testaceo 

 trivittatus ; pedes testacei, piceo varii ; al& limpid^ angustce, 

 subacuminatae. 



Pitchy, slender : head black in front and about the base of the 

 antennae ; vertex tawny, with two bands of pitchy spots ; face testa- 

 ceous, with two black spots : palpi pale ; third joint of labial palpi 

 pitchy : antennae black, clavate, shorter than the thorax, with two 

 yellow rings at the base : thorax with testaceous borders : prothorax 

 linear, a little broader than long, with three interrupted testaceous 

 stripes, of which there are some traces on the rest of the thorax : 

 legs testaceous, with pitchy streaks : fore-legs pitchy ; femora testa- 

 ceous towards the base; first and fifth joints of the tarsi testaceous 

 with pitchy tips ; second, third, and fourth joints testaceous at the 

 base : wings limpid, narrow, slightly pointed ; stigma whitish, indis- 

 tinct; veins white ; subcosta, radius and cubitus with black bands ; 

 subcostal areolets simple, with one or two forked veins by the stigma : 

 hind-wings a little shorter and narrower than the fore-wings. Length 

 of the body 9 lines ; of the wings 22 lines, 

 a. Venezuela. From Mr. Dyson's collection. 



150. MYRMELEON EFFERUS. 



Testaceus, gracilis ; caput antice nigrum, vertice nigro maculato ; 

 palpi albidi, apice nigri ; antenna ferruginece, annulate, 

 thorace multo breviores ; prothorax multo latior quam longior, 

 piceo quadrivittatus ; mesothorax et metathorax piceo notati ; 

 abdomen piceo fasciatum ; pedes poslici albi, nigro cincti ; 

 alee limpidce, subacuminatce, apice cinerece. 



Testaceous, slender: head paler beneath, black and shining 

 about the base of the antennae ; vertex with a band of black spots : 

 palpi whitish with black tips : antennae ferruginous, subclavate, very 

 much shorter than the thorax; lips of the joints testaceous: pro- 

 thorax linear, much broader than long, with four irregular pitchy 

 stripes: mesothorax and metathorax with indistinct pitchy marks: 

 abdomen with pitchy bands, nearly as long as the wings : anterior 

 legs testaceous, with black marks : hind-legs white, long and slender, 



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