138 MR. smith's descriptions of iiymenopterous insects 



wings fuscous, the nervures dark brown. Abdomen : the ovipositor 

 the length of the body ; the basal segment or petiole finely striated 

 transversely, the following segments smooth and shining; the ovi- 

 positor with a wide fascia of white a little before the apex. 

 Hab. Bachian. 



This species differs from M. coronator in the form and situation of the 

 tubercles on the front of the head ; the neck is much longer and more 

 slender ; the ovipositor is as long as, but not longer than, the body. 



3. Megischus viduus. M. niger; capite et antennarum basi rufis ; 

 thorace rugoso ; alis fuscis. 



Male. Length 13 lines. Black ; the head blood-red ; above, with deep 

 curved striae and three prominent tubercles, the central one the 

 longest, and placed in advance of the lateral ones ; before the 

 tubercles with semicircular striae ; the scape of the antennae and the 

 mandibles ferruginous, the latter black at their tips. Thorax : the 

 prothorax transversely grooved ; the raeso- and metathorax with large 

 shallow punctures, the scutellum smooth and shining ; the wings fus- 

 cous, the nervures dark brown; the anterior and intermediate tibiae, 

 tarsi, and tips of the femora, obscurely ferruginous ; the articulations 

 of the posterior legs and the tarsi rufo-piceous ; the coxae transversely 

 rugose ; the femora with two large teeth beneath and a number of 

 minute ones between them. Abdomen smooth and shining; the ovi- 

 positor finely striated transversely towards the base. 



Hab. Kaisaa. 



This may possibly be the male of M. coronator, but, as it comes from a 

 locality where that species has not yet been discovered, and as they differ 

 in several particxdars, I have not ventured to unite them. 



Geu. Crtptus, Fahr. 



1. Cryptus sicarius. C ferrugineus; abdomine nitido; antennis 

 apice fuscis; alis hyalinis, fusco fasciatis. 



Female. Length 7 lines. ' Ferruginous ; the antennae as long as the 

 body, and, beyond the fourteenth joint, fuscous ; the face of a reddish- 

 yellow. The metathorax bituberculate, a slight carina running from each 

 tubercle to the base of the metathorax, and another to the insertion 

 of the abdomen. Wings hyaline with a yellow tinge, and a broad 

 fuscous fascia towards their apex. Abdomen shining and petiolated. 



Var. The fuscous fascia extending to the apex of the wing. 



Hab. Dory ; Bachian. 



The variety is from Bachian. 



Gen. Mesostenus, Grav. 



1. Mesostenus molestus, M. niger; antennis medio albis ; capite 

 thoraceque flavo punctatis ; abdominis marginibus flavo fasciatis ; alis 

 hvalinis. 



