332 MYKMELEONITES. 



very much longer than the thorax: prothorax yellow, a little nar- 

 rower in front, broader than long, with two broad black stripes, each 

 of which includes a yellow dot in front: segments of the mesothorax 

 and of the metathorax with yellow dots or stripes and borders : ab- 

 domen dull testaceous, with a pitchy stripe, very much longer than 

 the wings, black towards the tip : appendages testaceous, curved 

 upward, thickly beset with black bristles : legs testaceous : wings 

 hyaline, short and narrow, thickly and almost equally covered with 

 brown dots, of which there are two rows on the subcostal region ; 

 stigma whitish ; veins partly white, ciliated ; subcostal areolets 

 simple, with a few forked veins near the stigma : hind-wings a little 

 longer and shorter than the fore-wings. Length of the body 14 

 lines ; of the wings 22 lines. 



a. Mexico. Presented by E. P. Coffin, Esq. 



52. MYRMELEON FEROX. 



Niger, gracillimus ; vertex luteus, valde convexus, nigro interrupte 

 fasciatus; fades flava ; palpi testacei ; antennce subfiliformes, 

 thorace longiores ; prothorax flavo univittatus et quadrimacu- 

 latus ; thoracis segmenta flavo maculata et marginata ; abdo- 

 men longissimum, segmentorum lateribus testaceo maculatis ; 

 pedes testacei, graciles, tibiis tarsisque apice nigris ; alee ci- 

 nerece, anticcE fusco quadrinotat<e. 



Black, very slender : head with a yellow ring round the base of 

 each antenna; vertex luteous, very convex, with an interrupted 

 black band ; face pale yellow : palpi testaceous : antennae black, 

 almost filiform, longer than the thorax : prothorax linear, a little 

 longer than broad, with a yellow dorsal stripe, and two yellow spots 

 on each side; under side yellow: segments of the mesothorax and 

 of the metathorax with yellow spots and borders : abdomen very 

 much longer than the wings ; hind borders of the segments with a 

 testaceous spot on each side: appendages black, short, bristly, 

 slightly curved : legs testaceous, slender ; tips of the tibia3 and of 

 the tarsi black, the latter black about the middle : wings gray, mo- 

 derately long and broad ; stigma whitish, small, with a brown spot 

 adjoining it in each fore-wing; veins black, with some white bands ; 

 subcostal areolets simple, their veins mostly forked along one-third 

 of the length from the stigma to the base ; three slight brown 

 marks along the cubitus, and a short brown streak proceeding 



