236 HYMENOPTEEA. 



line down the centre from the black basal part ; a thinner line runs from the spiracles 

 down the sides, and there is a small black mark over the hind coxa?; the upper 

 transverse keel is distinct and is curved upwards a little in the middle, from which a 

 short keel runs upwards ; the second transverse keel is obsolete ; spines longish, stout, 

 slightly curved. Petiole black, except at the sides and beneath ; apex of the postpetiole 

 yellow. The second segment yellow, black at the base and a short distance along the 

 sides ; in front of this is a large black mark, rounded and narrowed at the base, the 

 apex truncated in the middle, the sides projecting. The other segments are broadly 

 black at the base. There is a black line on all the coxse and over the femora and 

 trochanters ; the anterior tarsi are black at the apex. Areolet longer than broad, 

 dilated at the apex ; the outer nervure thin but distinct. 



-— 12. Polycyrtus paululus* 



Polycyrtus paululus, Cresson, Proc. Acad. Phil. 1873, p. 145 ( ? )\ 

 Hah. Mexico, Cordova 1 (Sumichrast). 



13. Polycyrtus junceus. 



Polycyrtus junceus, Cresson, Proc. Acad. Phil. 1873, p. 145 (d 1 ) 1 . 

 Hab. Mexico, Orizaba 1 (Sumichrast). 



14. Polycyrtus Chontalensis. (Tab. X. fig. 8, metanotum and base of abdo- 

 men.) 



Mger, flavo-varius ; scutello apiceque abdominis segmento 2°, flavis ; metathorace punctulato ; alis hyalinis, 



stigmate rtigro. <$ . 

 Long. 18-19 minim. 



Hal. Nicaragua, Chontales (Janson). 



Antennae stout, as long as the body, covered with close pubescence. Eyes margined ; 

 front depressed, the spine short, conical, and obtuse ; face punctured, projecting in the 

 eentre ; mandibles black at the base ; above the antennae the head is black, except 

 round the eyes. Pronotum black, except a broad line above. Mesonotum black, a 

 yellow line along the outer edge of the central lobe ; pleural sutures black ; scutellum 

 yellow, except at the base ; the carinae in front of it being also yellow, as is also the 

 suture between the meso- and metanotum. Metanotum black at the base, along the 

 transverse keel and down the sides broadly from the spiracles ; a broader line down the 

 centre, and a mark over the hind coxae, black; the basal region slightly, the rest 

 strongly, punctured,' the sides transversely striated; the centre, between the two 

 distinct transverse keels, longitudinally striated ; from the upper transverse keel two 

 short, slightly diverging keels run halfway towards the base in the centre ; tubercles 

 broad, obtuse. Petiole black at the base, a thin line along the sides and a thin central 



