236 ME. p. CAMERON ON [Mar. 19, 



side are rounded, smooth, shining, and bare ; the eye-incision is 

 punctured. Mandibles black, with a dull rufous band before the 

 middle ; the base and lower side thickly covered with long white hair ; 

 the apical tooth is long and rounded at the apex. Thorax covered 

 with white hair, except on the mesonotum, where it is shorter, 

 stiff er, and black ; the median segment is reticulated, more closely 

 on the apical slope than on the base; the central area is long, 

 contracted in the middle, and extends to the top of the apical 

 slope. Legs thickly covered with stiii white hair ; the calcaria 

 and spines are pale. Wings dark violaceous; the base to the 

 transverse basal nervure hyaline ; the 2nd cubital cellule at the top 

 and bottom is about one half the length of the lst;_ the 1st 

 recurrent nervure is received near the base of the apical third 

 of the cellule. The base of the petiole is black ; the rest of it, the 

 2nd segment, and the basal half of the 3rd are bright ferruginous : 

 the ventral keel of the petiole has a slight, rounded curve, its base 

 is more dilated than the apex ; the keel on the epipygium becomes 

 gradually dilated towards the apex, the space between it and the 

 outer edge is punctured; the sides are smooth, shining, and 

 impunctate ; the pygidium is closely and rather strongly punctured, 

 except in the middle, where it is smooth and shining ; this smooth 

 central part becomes gradually wider towards the apex, which is 

 depressed. 



SOOLIIDJE. 



DiscoLiA roYEiFEONS, sp. nov. 



Nigra, capite thoraceque nigro pilosis ; alis fusco-violaceis. S 2 • 

 Long. 30 mm. 



Head only slightly shining on the vertex, the rest of it opaque ; 

 behind it is thickly covered with longish black hair. The sides of 

 the clypeus bear deep, distinctly separated punctures ; its apex is 

 depressed, smooth, closely punctured behind; the central part 

 is opaque, somewhat bell-shaped, the narrow part being at the top, 

 above the centre it is depressed. The space immediately between 

 the antennae is opaque and impunctate ; above this, on either side, 

 is a large and strongly punctured depression ; the depressions are 

 oblique and narrowest above. The vertex, in the centre and 

 behind, bears scattered, deep punctures. The central part of the 

 mesonotum is impunctate, as is also the apical in the middle ; 

 the sides and base bear scattered punctures. Scutellum and post- 

 scutellum closely and uniformly punctured, except the apex of 

 the former and the centre of the latter towards the apex. Median 

 segment closely and strongly punctured ; the longitudinal furrows 

 are wide and deep. Pleurae closely and distinctly punctured, 

 except for a large irregular space in the centre of the pro- and 

 mesopleurse. The spines and hairs on the legs are black ; the fore 

 calcaria are dark rufous. The abdominal segments are sparsely, 

 slightly, and irregularly punctured ; the hypopygium is coarsely 

 punctured, except at the apex. The wings are deep violaceous, 

 very highly iridescent, and with greenish tints towards the apex. 



