HYMENOPTERA. 49 



have a scattered silvery pubescence, the calcaria white ; the 

 liist recurrent nervure entering the second submarginal cell near 

 its base. Abdomen petiolate, the first segment, base of the 

 second, the third, fourth and fifth, clothed with silvery-white pu- 

 bescence, the apical segments black ; the entire insect sprinkled 

 with long pale glittering hau's. 



Hab. Brazil (Amazons). 



234. MUTILLA SABULOSA. 



Female. Length 5^ lines. — Black, head and thorax closely and 

 roughly punctured, the former quadrate, the posterior angles 

 rounded. Thorax short, subquadrate, narrowed posteriorly, the 

 mesothorax having on each side at its hinder angles a spot of 

 silvery pubescence ; the legs have a scattered silvery pubescence, 

 most dense on the basal joint of the tarsi. Abdomen: the basal 

 margin of the first segment denticulated ; the second segment 

 having on each side a large ovate red macula, which is glassy- 

 smooth ; the four apical segments clothed with silvery pubes- 

 cence, having a denuded line down the centre ; the entire insect 

 thinly sprinkled with black hairs. 



Hab. Brazil (Rio ; Amazons). (Coll. W. W. Saunders, Esq. ; 

 H. W. Bates.) 



235. MUTILLA FIDICULA. B.M. 



Female. Length 3-3| lines. — Pale rufo-testaceous, head and 

 thorax roughened with confluent punctures, the thorax being 

 longitudinally rugose ; eyes large, black and very prominent ; 

 the fiagellura fuscous above, except two or three of the basal 

 joints, which are pale ; tips of the mandibles black ; the vertex 

 transverse, its posterior angles acute. Thorax fiddle-shaped, the 

 entire lateral margins denticulate ; tips of the femora and tibise 

 fuscous. Abdomen longitudinally rugose, more delicately so 

 than the thorax ; the second segment having at its basal margin 

 laterally a round black or fuscous stain ; the apical margin has a 

 broad black fascia, emitting in the centre a black stripe which 

 scarcely reaches the basal margin ; the apical segment fuscous 

 at the tip ; the entire insect thinly sprinkled with lon^ pale 

 hairs. 



Hab. Brazil (Ega on the Amazons). (H. W. Bates.) 



236. MUTILLA ARGYKA. 



Mutilla argyra. Spin. Ann. Soc. Ent. Fr. x. 85. 51 <? . 

 Hab. Cayenne. 



