of Fussurial Hymenoptera. 2'Jo 



of the latter rounded ; the antennae fulvous beneath. Thorax : 

 the prothorax flattened at the sides, and deeply depressed in 

 the middle above, forming on each side an obtuse tubercle ; 

 the mesothorax with two deeply impressed longitudinal lines ; 

 the metathorax rugose, Avith a horseshoe-shaped small en- 

 closed smooth shining space at its base ; this shape is again 

 enclosed by a longer but similar-shaped space, which is longi- 

 tudinally strigose ; the apex abruptly truncate, the truncation 

 sharply margined above, finely rugulose, and thinly covered 

 with white pubescence ; wings subhyaline and iridescent, the 

 nervures black ; the anterior tibiae, the tarsi, and also the 

 intermediate pair ferruginous. The abdomen smooth and 

 shining ; the apical segment, and the margins of the other 

 segments, narrowly rufo-piceous. 

 Hob. Brazil (Ega and St. Paulo). 



The colouring of the legs differs in the two specimens, one 

 being lighter than the other, the extreme tips of the femora 

 being ferruginous. 



Family Larridae. 



Genus Larrada, Smith. 



Larrada vestita. 



Female. Length 5\ lines. Head and thorax black, the two 

 basal segments of the abdomen and half of the third ferru- 

 ginous. Head and thorax densely covered with short white 

 pubescence ; on the face it is bright and silvery, it is the same 

 on the legs ; the apical joints of the tarsi ferruginous ; the 

 wings clear hyaline ; the tegulaj and nervures ferruginous ; 

 the apical margins of the segments of the abdomen with 

 bright silvery fasciae. 



Hob. N. India. 



Larrada coelestina. 



Female. Length 7 lines. Black, head and thorax semi- 

 opaque; abdomen shining. Head closely and finely punctured ; 

 the face, as high as the insertion of the antennas, covered with 

 silvery pile. The thorax closely and finely punctured above ; 

 the metathorax obliquely striated, with punctures intermixed ; 

 the legs, and the thorax beneath, with a fine changeable silvery 

 pile ; the tarsi obscure fusco-ferruginons ; the wings dark 

 fuscous and having a purple iridescence, the posterior pair 

 palest. Abdomen pilose at the sides and beneath, the apical 

 margins more or less obscurely rufo-testaceous. 



Hah. China (Hong Kong). 



