286 HYMENOPTEKA. 



not much developed behind them and roundly narrowed. The scape of the antennae 

 shining, sparsely punctured, and haired, grooved on the lower side, the apex ferruginous ; 

 the flagellum with a fuscous pile ; the third joint, if anything, longer than the fourth. 

 The pronotum coarsely punctured, covered with golden pubescence ; the sides of the apex 

 oblique, the middle narrow and almost transverse. The mesonotum shining, covered 

 with large elongated punctures, and bearing dark fuscous erect hair. Scutellum 

 coarsely punctured, moderately convex ; the apex bearing long pale golden hair. The 

 tegulse are large and wide, and project behind ; the apex piceous, and covered with pale 

 hair. The median segment has a gradually rounded slope to the middle and an oblique 

 slope at the apex ; strongly reticulated, the base with depressed golden pubescence, the 

 rest with rather long pale golden hair ; the central area is wide, reaches to the middle, 

 and is rounded at the apex. The propleurae not excavated, strongly punctured, except 

 in the middle ; the mesopleurse punctured and covered with golden pubescence ; the 

 apex of the metapleurse reticulated and covered with pale golden hair. The first abdo- 

 minal segment with widely separated punctures, except in the middle, shining, sparsely 

 covered with pale golden hair ; black, except at the extreme apex. The second segment 

 with scattered punctures, except in the middle ; the other segments more closely punc- 

 tured, and covered with fiery-red hair. The pygidium punctured, covered with fulvous 

 hair, the middle roundly keeled posteriorly, becoming broader towards the apex, which 

 is oblique ; the sides are bluntly toothed. The basal ventral segment is entirely black ; 

 the sides are punctured ; the keel is im punctate, and only very slightly depressed in the 

 middle. The second segment with scattered punctures, except in the middle towards 

 the base ; the other segments closely punctured. The hypopygium punctured ; the 

 apex transverse. The legs covered with pale fulvous hair. The wings are violaceous 

 throughout. The radial cellule reaches to the apex of the third cubital ; the basal 

 abscissa of the radius is straight, oblique, and shorter than the third, which is curved ; 

 the first cubital cellule is longer than the second ; the first recurrent nervure is received 

 shortly beyond the middle, the second in the apical fourth of the cellule ; the third trans- 

 verse cubital nervure is angled below the middle ; the top of the third cubital cellule 

 is a little more in length than the space bounded by the second recurrent and the third 

 transverse cubital nervures. 



The golden colour of the hair on the head and thorax and the crenulated apex of the 

 clypeus are characteristic of this species. 

 J 



29. Mutilla ardens. 



Mutilla ardens, Gerst. Archiv f. Naturg. xl. p. 323 l . 

 Hab. Mexico 1 . 



xi 30. Mutilla Mviventris. 



Mutillufulviventris, Gerst. Archiv f. Naturg. xl. p. 323 *. 

 Hob. Mexico 1 . 



