J 



\l 



234 HYMENOPTEEA. 



9. PolycyrtllS monteziima. (Tab. X. fig. 6, metanotum and base of abdo 

 men.) 



Niger, flavo-varius ; pedibus apiceque scutelli, flavis ; femoribus fulvis ; coxis posticis flavis, nigro-lineatis ; 



stigmate fusco. 3 . 

 Long. 18 millim. 



Eab. Mexico (SallS). 



Antennae densely pilose, a broad white ring beyond the middle (joints 8-13). Head 

 yellow, except behind and the vertex in the centre ; tips of the mandibles black. Pro- 

 thorax black, the prosternum and a broad line on the edge of the pronotum, yellow. 

 Mesopleura and sternum entirely yellow, the mesonotum black ; the tegulse, a short 

 line on either side of the apex of the middle lobe, the apex of the scutellum, the post- 

 scutellum, and the sutures, yellow. Metathorax yellow, the base broadly black, and 

 the black continued down the centre, becoming gradually narrowed from the base to 

 the apex ; a narrow black line runs from the spiracles down the side ; the metapleura is 

 black, except the suture and a small mark over the hind coxae ; the metathorax is 

 covered with long fuscous hair, and the spines are obtuse and short. First abdominal 

 segment black above, the sides narrowly (except at the base and at the tubercles, where 

 the yellow is broader), the apex broadly, and the lower side, yellow ; second segment 

 black at the base, the black continued along the sides for about one third of the length 

 of the segment and enclosing a small yellow mark and becoming dilated at the apex ; 

 in front of this is a large black mark, which occupies the greater part of the segment ; 

 it is narrowest at the base, where the sides project irregularly, and not transverse like 

 the apex ; the apex of the second and following segments broadly yellow ; the apical 

 segment for the greater part yellow. Legs fulvous ; the coxse clear yellow, lined on 

 the outside with black. Wings hyaline, stigma fuscous ; areolet a little longer than 

 wide, outer nervure bullated. 



Differs from P. fulvofemoratus in there being no cross black band joining the central 

 stripe and the spiracles ; in the basal part of the middle stripe being much broader 

 than the middle, the basal part forming a triangle in front of the spiracles, while in 

 P. fulvofemoratus it is not much broader than the parts of it at the keel, and is also 

 narrowed in the middle. The black at the base of the second abdominal segment is 

 prolonged along the sides, while in P. fulvofemoratus it is completely transverse ; in 

 the latter species too the base of the black mark is sharply indented, the sides projecting 

 sharply. 



10. Polycyrtus canaliculars. (Tab. X. fig. 7, metanotum and base of abdo- 

 men.) 



Mger, flavo-varius ; apice scutelli pedibusque, flavis ; lineis 3 metathoraeis femoribusque supra, nigris ; alis 



hyalinis, stigmate testaceo. <? • 

 Long. 15-16 millim. 



