228 HYMENOPTEBA. 



— 41. Mesostenus incertus. 



Mesostenus incertus, Cresson, Proc. Acad. Phil. 1873, p. 101 ( <$ ? ) \ 

 Hab. Mexico, Orizaba, Cordova 1 (Sumichrast). 



42 Mesostenus parvituberculatis. (Tab. X. fig. 21.) 



Niger, flavo-varius ; abdomine rufo ; pedibus flavo-fulvis ; coxis anterioribus flavis ; femoribus supra nigro- 



lineatis ; alis hyalinis. $ • 

 Long. X3 millim. ; terebra 5*5 millim. 



Hab. Guatemala, San Juan in Vera Paz (Champion). 



Antennae stout, dilated a little towards the apex ; the yellow ring on the ilagellum 

 broad. Head punctured, the vertex not so strongly ; a straight keel leading down from 

 the ocelli to the antennae ; yellow behind, the centre of the vertex and the mandibles 

 black. Thorax strongly punctured, the mesopleura shining and impunctate, the meta- 

 pleura longitudinally striated, the metanotum irregularly reticulated. Scutellum oval, 

 with some large punctures. Metathoracic tubercles mere short dilatations of the carina. 

 Thorax black ; a mark on the side of the prothorax, a line on its edge, the tegulae, the 

 tubercle beneath them, a large mark on the mesopleura, a small one beneath the hind 

 wings, the greater part of the metapleura, two lines on the disc of the mesonotum, the 

 scutellum, and two large marks covering the metathoracic tubercles, yellow. The 

 femora incline to reddish, the four anterior ones yellowish in front ; tibiae and tarsi 

 fulvous, tinged with yellow ; the four anterior femora are lined with black behind, the 

 posterior femora have more than the apical half for the greater part black ; the hind 

 coxae are marked with black at the base. 



43. Mesostenus animatus. 



Mesostenus animatus, Cresson, Proc. Acad. Phil. 1873, p. 161. ( ? ) l . 

 Hab. Mexico, Orizaba 1 (Sumichrast). 



44. Mesostenus pertenuis. 



Mesostenus pertenuis, Cresson, Proc. Acad. Phil. 1873, p. 162 (<J) \ 

 Hab. Mexico, Cordova x (Sumichrast). 



45. Mesostenus collaris. 



Mesostenus collaris, Cresson, Proc. Acad. Phil. 1873, p. 162 (<?)\ 

 Hab. Mexico, Orizaba 1 (Sumichrast). 



