DESCRIPTIONS OF NEW HYMENOPTERA. 269 



calcaria pale. WiDgs hyaline • the apex smoky ; th e nervures black 

 the third transverse cubital nervure is obliterated ; the cubitus obli- 

 terated beyond the second transverse cubital nervure. The petiole and 

 second segment are thickly covered with long white hair, as are also 

 the others, which have also their apices fringed with depressed white 

 hair. The post-petiole is strongly punctured and clearly separated ; 

 the ventral keel is straight and of uniform elevation. 



MUTILLA ACASTA, sp. nov. 



Nigra, thorace rufo ; alis hyalinis, nervis fuscis. $ 



Length. — 7 mm. 



Habitat.— Simla. 



Antennse deep black ; the scape covered with long white hair. 

 Head as wide as the thorax, shining ; above the antennse closely and 

 distinctly punctured and covered with long white hair ; the middle of 

 the front is smooth. Eyes oval, not incised on the inner side. Mandi- 

 bles curved, broad, ending on the lower side in a sharp, somewhat 

 triangular, clearly separated tooth. Thorax entirely ferruginous ; the 

 base rounded. Meso-notum strongly and uniformly punctured and 

 covered with long pale hair ; there are no furrows on it. Soutellum 

 more closely punctured than the meso-notum. Median segment with a 

 gradually rounded slope, closely reticulated all over ; the reticulations at 

 the base only slightly larger than the others. Wings hyaline, only 

 slightly infusoated towards the apex ; the stigma is black ; the nervures 

 fuscous ; the basal abscissa of the radius is straight and oblique, the 

 apical roundly curved ; the first transverse cubital nervure is straight and 

 oblique, the second rounded, the third obliterated ; the first recurrent 

 nervure is received near the apex of the basal third of the cellule ; the 

 second is faint, almost obliterated, and is received shortly beyond the 

 second transverse cubital nervure ; the transverse median nervure is re- 

 ceived distinctly beyond the transverse basal nervure ; the nervures in 

 the hind wings are either faint or obliterated. Legs black, covered 

 with white hair ; the calcaria white. Abdomen black, covered, but not 

 thickly, with long white hair ; the second ventral segment is closely 

 punctured ; the basal three-fourths keeled in the middle ; the keel 

 ends in a triangular tooth ; there is no distinct keel on the underside 

 of the petiole ; the pygidium is closely punctured and not keeled 

 laterally • the epipygium is dilated in the middle ; the basal and 

 apical slopes are straight and oblique. 



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