MYRMELEONITES. 331 



50. MYRMELEON IMMITIS. 



Albido-testaceus, gracillimus; palpi albidi ; antennae nigrce, tes- 

 taceo annulate, thorace breviores ; thorax piceo bivittatus ; 

 pedes testacei, nigro strigati, tarsis albidis nigro bicinctis ; 

 alee, limpidce, breves, sublatce, anticce basi fusco notatce. 



Whitish, testaceous, very slender : head pitchy about the base 

 of the antennae ; vertex slightly tuberculated : palpi whitish : an- 

 tennae black, clavate, shorter than the thorax; tips of the joints 

 testaceous: thorax with a pitchy stripe on each side: prothorax 

 linear, a little longer than broad: abdomen longer in the male than 

 in the female ; sides pitchy in the female, black in the male espe- 

 cially towards the tip which is almost wholly black : legs pale tes- 

 taceous, streaked with black, beset with whitish and black bristles ; 

 tarsi whitish, black at the base and at the tips : wings limpid, rather 

 broad and short, not pointed ; stigma white, rather small ; veins and 

 areolets comparatively few ; veins white, with black bands, ciliated, 

 slightly clouded with brown from the base to the middle of the 

 wing ; forks of some of the marginal veinlets along the hind border 

 also clouded with brown, but very slightly ; besides these are two 

 darker brown dots, one near the tip of the first sector of the radius, 

 the other near the tip of the fork of the cubitus : hind-wings shorter 

 and a little narrower than the fore-wings, unspotted. Length of 

 the body ll\ 14 lines; of the wings 18 20 lines. 



a. Santarem, Brazil. From Mr. Stevens' collection. 

 6. Brazil. From Mr. Stevens' collection. 



51. MYRMELEON VEBSUTUS. 



Niger, gracillimus ; caput flavo varium ; palpi flam, apice nigri, 

 maxillares nigro bifasciati ; antenna subfiliformes, thorace 

 multo longiores ; prothorax flavus, nigro bivittatus; thoracis 

 segmenta flavo maculata et marginata ; abdomen testaceum, 

 longissimum, piceo vittatum, apice nigrum ; pedes testacei ; 

 alee hyalince, parvce, fusco confer tim guttat<B. 



Black, very slender : head shining in front, yellow about the 

 eyes and around the base of the antennae ; vertex with two yellow 

 bands which are interrupted in the middle ; face yellow on each side, 

 and with a yellow angular band : palpi yellow with black tips ; max- 

 illary palpi with two black bands : antennae black, almost filiform, 



