10 Cameron, Hymenoptera Orientalia. 



at the top ; the vertex is not so dark, nor the base of the 

 antennae so light, in tint. It also resembles M. regia Sm., 

 but that is much larger; its abdomen has a very decided 

 bluish tint; its mesonotum has in front a large mark of 

 silvery pubescence, and the median segment has a rounded 

 slope. M. poonaensis may easily be known by its thorax 

 being longer and distinctly narrowed towards the apex, 

 the thorax of M. consociata being of uniform width. 



Head as wide as the thorax ; the front and vertex 

 coarsely punctured, the vertex slightly infuscated ; and 

 with only a few short, black hairs ; the oral region with 

 some long silvery hairs ; the tips of the mandibles black. 

 Antennae stout, rufous, blackish towards the apex ; the 

 scape with a few large punctures and a few silvery hairs ; 

 the third joint twice the length of the second and one- 

 half the length of the fourth. Thorax short, of uniform 

 width ; the mesonotum strongly punctured, sparsely 

 covered with long, silvery hair ; the median segments with 

 a sharply oblique slope ; reticulated, and bearing long, 

 fuscous hair ; the reticulations are weaker and smaller on 

 the bottom. Pleurae shining, not excavated ; the middle 

 thickly covered with long, depressed, silvery hair. Legs 

 rufo-testaceous, thickly covered with long, white hair ; the 

 hinder knees infuscated. Abdomen hardly so long as the 

 head and thorax united ; deep black ; an elongated ^xiark 

 of silvery pubescence in the centre of the second segment, 

 a transverse one at its apex, and one in the centre of the 

 fourth and fifth segments ; the anal segment finely longi- 

 tudinally striated ; the centre in the middle piceous ; the 

 ventral segments thickly covered with long, white, silvery 

 hair. 



MUTILLA INDECORA, Sp. nov. (PL 4, fig. I.) 



Long. 4 mm. 



Hab. Ceylon, Trincomali ( Yerbury). 



