of ' Fossorial Hyvienoptera. 403 



bands. Head : the labrum, clypeus, a line running halfway 

 up the inner margin of the eyes, and the antennas beneath 

 yellow ; a black line down the middle of the clypeus and a 

 spot at the base of the labrum ; the mandibles rufo-piceous at 

 their apex, and the palpi pale testaceous ; the clypeus covered 

 with silvery pile. Thorax : a line on the margin of the 

 prothorax, a spot behind the tegula?, and the postscutellum 

 yellow ; the anterior and intermediate tibia? yellow in front, 

 and the anterior tarsi yellow beneath. Abdomen : the first 

 segment with a transverse yellow band a little before its apical 

 margin ; the four following segments with a narrow fascia on 

 their apical margins ; these fascia? are continued beneath. 



Var. The band on the basal segment obsolete, and the apical 

 margin yellow. 



Hab. Brazil (Ega). 



Larra cornuta. 



Female. Length 8 lines. Black, with the second, third, and 

 fourth segments of the abdomen ferruginous ; wings dark 

 brown, with the base and apex hyaline. Head : the face 

 covered with silvery pile, and with an erect obtuse tubercle 

 above the base of the clypeus. Thorax: the metathorax 

 densely covered with bright silvery pubescence ; the legs and 

 base of the abdomen with changeable silvery pile ; abdomen 

 black beneath, with the sides of the second and third segments 

 ferruginous. 



Hab. Bombay Presidency (India). 



This species was collected by Dr. Leith, and presented by 

 him to the national collection. 



Larra magnvfica, Savigny's Egypt, pi. 16. fig. 15. 



Female. Length 17 lines. Head and thorax ferruginous; 

 abdomen yellow above, with the first segment and apical mar- 

 gins of the two following narrowly black ; apical margins of 

 the fourth and fifth narrowly ferruginous. Head : the labrum, 

 clypeus, face as high as the ocelli, and a spot in front of the 

 scape of the antenna? yellow. Antenna? and legs ferruginous. 

 Thorax : the metathorax with a dark stain at the base ; the 

 wings hyaline, the nervures ferruginous ; the prothorax with 

 a narrow yellow margin ; both the head and thorax covered 

 with a changeable silvery pile, observable in certain lights. 

 Abdomen : the first segment has at its base a minute central 

 and two lateral ferruginous spots ; beneath, the first five seg- 

 ments black, the fifth with two large yellow macula?, the sixth 

 segment ferruginous. 



Hah. Egypt. 



