26 



HYMENOPTERA. 



hairs, the apical ones with black hairs ; the apical margins of 

 the four hasal segments fringed with pale pubescence. 



Hab. North-west coast of Australia. 



147. MUTILLA PERPLEXA. B.M. 



Female. Length 5| lines. Black, coarsely rugose, the vertex 

 covered with pale yellow pubescence, the scape covered with pale 

 pubescence. Thorax slightly narrowed posteriorly, and thinly 

 sprinkled over with long black pubescence, the legs thinly 

 covered with glittering pale hairs ; the intermediate and poste- 

 rior tibiae armed exteriorly with stout acute spines. Abdomen : 

 the base thinly clothed with pale pubescence, a patch of the 

 same in the middle of the second segment, its apical margin 

 also fringed with pale pubescence ; the fourth and fifth segments 

 have also a little patch of pale pubescence in the middle on their 

 apical margins ; the entire abdomen above, particularly towards 

 the apex, sprinkled with long black hairs ; the margins of the 

 segments beneath fringed with glittering silvery pubescence. 



Hab. Australia (North-west coast). 



148. MUTILLA RUBELLA. B.M. 



Female. Length 7 lines. Obscurely red ; the antennae, eyes, 

 legs and breast nearly black ; the entire insect coarsely rugose ; 

 a patch of golden-coloured pubescence on the vertex ; the ante- 

 rior angles of the thorax acute, the sides unarmed ; posteriorly 

 narrowed, the sides compressed ; the legs have a scattered pale 

 pubescence beneath ; the intermediate and posterior tibiae fur- 

 nished with a row of sharp spines exteriorly, which are intermixed 

 with black pubescence ; the tarsal joints spinose at their apex, 

 and having a mixture of dark and pale pubescence, most sparing 

 on the anterior pair ; the thorax above as well as the abdomen 

 thinly clothed with black pubescence ; the latter having a spot 

 at the apex of the basal segment in the centre, an elongate patch 

 down the centre of the second, occupying a deep depression, a 

 spot on its apical margin, as well as on those of the three fol- 

 lowing, of golden-coloured pubescence. 



Hab. North-west coast of Australia. 



149. MUTILLA VENUSTA. B.M. 



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

 and coarsely punctured, the tubercle at the base of the scape, a 

 spot at the base of the clypeus, and the middle of the mandibles 

 red ; the thorax above and a large ovate macula on each side of 

 the second segment of the abdomen red ; the anterior margin of 



