21G Mr. T. D. A. Cockeiell — Descriptions and 



ocelli much nearer to each other than to eyes ; lateral margins 

 of pronotum straighter, posterior angles much less (only 

 slightly) ampliated ; abdomen in male less inflated. 

 Type, 31. congrua, Walk. 



Mardalana congrua. 



Cicada congrua, Walk. Journ. Ent. i. p. 303 (1862). 

 Chlorocysta niacrula, StSl, Tr. Ent. Soc. (3) i. p. 575 (1863) ; God. & 

 Frogg. Proc. Linn. Soc. N. S. Wales, 1904, p. 660. 



Although I am deferring all synonym ical notes for the pub- 

 lication of ray ' Catalogue of the Cicadida,' I think it right to 

 mention that in reply to Mr. Froggatt's enquiry I stated that 

 I could not find Walker^s C congrua in the Pascoe Collection 

 {cf. Proc. Linn. Soc. N. S. Wales, 1904, p. 657). It has 

 since been discovered, and proves to be a female specimen of 

 StaPs species, and therefore takes precedence in nomenclature. 



Genus Thaumastopsaltria. 



Acrilla, Stal, Trans. Ent. Soc. Lond. (3) i. p. 575 (1863), nom. prfeocc. 

 Thavmastopsaltrio, Kirk. Entomologist, 1900, p. 242, n. nom. 



Type, T. odipata, Stal {Acrilla). 



Genus Cystopsaltria. 



Cystopsaltria, God. & Frogg, Proc. Linn. Soc. N. S. Wales, 1904, 

 p. 661. 



Type, C. immaculata, God. & Frogg. 



XX VT. — Descriptions and Records of Bees. — l. 

 By T. D. A. CocKERELLj University of Colorado. 



Except where the contrary is stated, it is to be understood 

 that all the Australian species discussed in this series of 

 papers are in the collection of the British Museum, and all 

 others in my own collection. 



Melissodes kallstramia , sp. n. 



^ . — Length about 11^ mm. 



Black, with the abundant pubescence of the vertex and 

 thorax above orange-fulvous, without any black; that of 

 cheeks, face, and pleura whitish ; facial quadrangle not so 

 broad as long ; eyes (dry) silvery grey ; clypeus (except 



