1G6 Mr. T. D. A. Cockerell — Descriptions and 



few indistinct raised lines; other differences are, hind tibfjB 

 creain-colonred at base, creamy-white lateral face-marks 

 linear. The nietathorax may be all red at sides or only red- 

 spotted. This is perhaps only a subspecies of P. lateralis. 



Hah. Mackay, Queensland, at flowers of Xanthorrha;a 

 April 1899 (r^ijv?^?-, 856). Britisli Museum. Another, col- 

 lected Nov. 1893, bears the number 858. 



'J'here are two small cream-coloured marks on upper 

 border of prothorax. A variety {Turner, 858, Nov. 1893) is 

 larger and more robust (about 6 mm. long), with the stigma 

 honey-colour and the nietathorax red except the enclosure. 

 The lateral face-marks are broader, as in lateralis. 



Prosopis euxantJia, n. n. 



Prosopis xanthopoda, Ckll. Ann. & Mag. N. H., July 1910, p. 28 (not 

 of Vachal, 1895). 



Pachyprosopis mirahilis, Perkins. 



$ . — Mackay, Queensland (Turner, 868). March and May 

 1900 ; one is from flowers of Eucalyptus. The mesothorax 

 and scutellum vary from dark green to dark purple. 



Pachyprosopis plebeia, sp. n. 



$ . — Length 6^-7 mm. 



General build and appearance much as in P. mirahilis, but 

 tlie head, while thick, is not in any way extraordinary, being 

 as in Euryglossa. Head black, face broad ; labruni and 

 mandibles (except apex) dark red ; clypeus with distinct 

 ■well-?eparated punctures, front minutely punctured ; linear 

 facial foveee curving above and running to lateral ocelli ; 

 scape light orange ; flagellum thick, entirely clear ferrugi- 

 nous ; thorax black, with the very minutely punctured 

 mesothorax tile-red, sometimes clouded with black at sides ; 

 scutellum with minute punctures on a shining ground, its 

 anterior border sometimes red, area of metathorax not 

 noticeably sculptured, sides of metathorax with conspicuous 

 white hair ; tegulai very dark brown. Wings clear, nervures 

 and stigma yellowish brown ; venation as in P. mirahilis, 

 but the second s.m. is not so narrow, and the basal nervure 

 is more arched. Femora black, ferruginous at apex ; tibiae 

 and tarsi clear ferruginous, the anterior tibias more or less 

 yellow in front. Abdomen red, a shade darker than in 

 P. mirahilis, the first segment sometimes blackened basally, 

 when two small orange spots appear upon the black. 



Hah. Mackay, Queensland, Nov. 1893 and Jan. 1901 

 {Turner, 857). British Museum. 



