MYRMELEONITES. 379 



the joints : prothorax almost linear, broader than long, testaceous 

 on each side in front, and with four obscure testaceous stripes : me- 

 sothorax and metathorax with testaceous hind borders: abdomen 

 much shorter than the wings, slightly increasing in breadth from 

 the base to the tip ; hind borders of the segments testaceous : legs 

 testaceous, rather stout ; lips of the femora, of the tibiae and of the 

 joints of the tarsi black ; tibiae with black bands : wings limpid, 

 narrow, rather long, angular and pointed at the tips ; stigma while ; 

 veins black, with white bands, slightly ciliated ; discal areolels sim- 

 ple, with a few forked veins towards 'the stigma ; marginal region 

 narrow: hind-wings narrower and more lanceolate but hardly shorter 

 than the fore-wings. Length of the body 15 lines ; of the wings 

 36 lines. 



a. ? From Mr. Milne's collection. 



137. MYKMELEON INVISUS. 



Piceus, gracilis ; caput nigrum, antice et subtus testaceum, vertice 

 ferrugineo vario, fronte nitente; palpi ferruginei ; antennae 

 nigrce, basifulva; thorax flavo varius ; prothorax multo lon- 

 gior quam latior ; pedes testacei, tibiis anticis femoribusque 

 subtus nigro strigatis, tarsis nigris basi testaceis ; alee limpidce, 

 subangustce, lanceolata, apice non angulatce. 



Pitchy, slender : head black, shining in front ; vertex partly 

 ferruginous, with a slight longitudinal furrow ; face and underside 

 testaceous : palpi ferruginous : antennae black, subclavate, tawny 

 at the base, much shorter than the thorax : thorax yellow along each 

 side and on the hind borders, and with three interrupted very slender 

 stripes : prothorax linear, much longer than broad : legs testaceous, 

 slender ; femora and fore-tibiae streaked with black beneath ; tarsi 

 black, testaceous at the base : wings limpid, rather narrow, lanceo- 

 late, not angular at the tips ; stigma whitish ; veins white, with a 

 few black bands ; subcostal areolets simple, with some forked veins 

 from half the length to the stigma ; marginal region narrow : hind- 

 wings a little shorter, narrower and more lanceolate than the fore- 

 wings. Length of the body 14 ? lines; of the wings 32 lines. 



a. ? From Mr. Milne's collection. 



