362 Mr. T. D. A. Cockerell — Descriptions and 



excavation or groove on the inner side ; anterior coxae with 

 strong but only moderately long black spines ; middle and 

 posterior tarsi with long white hair; tegulse fuscous, paler at 

 sides. Wings somewhat dusky. Abdomen shining, the 

 hind margins of the segments with dense entire fulvous hair- 

 bands ; fifth segment with much fulvous hair basally, sixth 

 covered with fulvous hair above, except apically ; no ventral 

 spine. 



Compared with M. kurandensis, the antennas are shorter in 

 proportion and the ocelli are quite different. In kurandensis 

 the ocelli are close together and the interocellar distance is 

 less than that from lateral ocelli to eye or from ocelli to 

 occipital margin, the vertex being broad. In M. serrlcauda 

 the ocelli are wide apart, the interocellar distance being a 

 little greater than the distance from ocelli to eye and much 

 greater than that to occipital margin. 



Hub. Mackay, Queensland, May 1900 {Turner). British 

 Museum. 



Megachile gilbertiella , sp. n. (vel apicata, subsp. ?). 



? . — Length about 8 mm. 



Black, parallel-sided, with the tegument of the fifth abdo- 

 minal segment and rather more than the apical half of the 

 fourth bright ferruginous ; ventral scopa white, fulvous on 

 apical segment; anterior margin of clypeus with two widely 

 separated short teeth and a slight prominence in the middle 

 between them. 



This is certainly very close to M. apicata, Smith, but does 

 not wholly agree with the description, and is from a very 

 different locality. There is also some resemblance to M. 

 statkeri, Ckll., but comparison of types brings out important 

 differences. 



Head large ; mandibles black ; clypeus densely punctured ; 

 face and cheeks with white hair ; flagellum dark brownish 

 beneath ; front and vertex with strong and dense but distinct 

 punctures; meaothorax and scutcllum with similar punctures, 

 shining between them ; white thoracic hair-spots as in M. 

 eucalypti ; tegula? very dark. Wings rather dusky ; second 

 s.m. very long. Legs ordinary, with white hair, that on 

 inner side of tarsi yellowish. Abdomen shining, strongly 

 punctured ; first segment with a triangular patch of dense 

 white hair on each side; second to tourth segments with 

 marginal hair-bands, broad and white at sides, linear and 

 more or less yellowish in the middle ; bases of segments also 



