300 On new Species of Fossorial Hymenoptera. 



Bembex multipicta. 



Female. Length 7^ lines. Black, variegated with pale 

 yellow markings ; the abdomen with curved fasciae, which are 

 not united in the middle. Head : the mandibles, labrum, a 

 broad line on each side of the face, the clypeus, a triangular 

 spot above it, and two minute spots in front of the ocelli, and 

 with a line behind the eyes, which becomes wider towards the 

 base of the mandibles, yellow ; the scape yellow in front ; the 

 base of the clypeus with a large bilobed black spot, and the 

 tips of the mandibles black. Thorax : a narrow line on the 

 posterior margin of the prothorax, two minute elongate spots 

 on the disk of the mesothorax, a spot close to the tegulae, an 

 ovate one on each side of the scutellum, the postscutellum, a 

 curved line across the metathorax, and an ovate spot at its 

 posterior lateral angles yellow ; legs yellow, with a black line 

 on the tibiae and tarsi behind ; the wings hyaline. Abdomen : 

 an interrupted broad waved fascia on the first segment ; the 

 following segments have on each side a subquadrate spot, 

 from which a line curves backwards in a lunate form ; the 

 apical segment black ; beneath, each segment has a lateral 

 angular yellow spot. 



Hob. Mexico (Oajaca). 



A male from Brazil, which has the abdomen marked in the 

 same manner as this species, is in the collection ; it only differs 

 in being entirely yellow beneath, a common sexual distinction, 

 and is probably the true male of B. multipicta. 



Bembex pallidipicta. 



Female. Length 8 lines. Black ; the head, thorax, and base 

 of the abdomen densely covered with short white pubescence ; 

 the abdominal segments with broad glaucous fasciae. Head : 

 the mandibles, labrum, clypeus, sides of the face, a line behind 

 the eyes, and the scape in front yellowish white ; the flagelmm 

 fulvous beneath. Thorax : a narrow line on the margin of the 

 prothorax, another over the tegula?, and also one on the sides 

 and posterior margin of the scutellum, a transverse one on the 

 postscutellum, a curved one across the metathorax and its 

 posterior angles, pale yellowish white ; the legs of the same 

 colour, with the femora more or less black behind ; wings 

 hyaline. Abdomen : the first fascia much narrowed in the 

 middle, the second broad and suddenly widened laterally, the 

 third slightly incised in the middle posteriorly, and the fourth 

 has its anterior margin waved ; beneath, each segment has a 

 lateral triangular pale macula. 



Hah, Mexico. 



[To ha continued.] 



