NOTES AND EXHIBITS. 427 



Petterd, another southern species, which was dredged off the 

 coast by the ' Thetis,' also occurs inside the harbour. Miss 

 Lodder's collection contained specimens of R. beddomei Tate( = R. 

 Jlamia Beddome) identified by Beddome, and R. sophice Brazier, 

 identified by Brazier. These on comparison with R Jlammea 

 Frauenf., and inter se prove to differ only slightly in colour. 

 The first three names are therefore synonyms of the last. The 

 names R. australe Frauenf eld, R. ochroleuca Brazier, R. mixta 

 Tate, and R. apicilirata Tate & May, all apply to the one species. 

 In arriving at this conclusion I had the type of R. ochroleuca and 

 authentic specimens of R. apicilirata to compare with Frauenfeld's 

 species. The salient feature of the species provided Tate & May 

 with their name. Tate's name mixta was proposed to replace the 

 preoccupied name ochroleuca. Specimens which 1 have seen, 

 identified by Tate & May as R. mixta, were of an apparently 

 undescribed species; this suggests that these authors were not 

 acquainted with the true ochroleuca. The confusion arose from 

 the fact that Frauenfeld described a very rare variety of the 

 species devoid of longitudinal ribs. The name mixta might well 

 be retained for the common variety. The material on which 

 these notes are founded has been placed, together with the rest 

 of my Rissoidm, in the Australian Museum." 



Mr. Froggatt showed some leaves of Eugenia sp., beautifully 

 coated with the tests of " snow-flies," an undetermined species of 

 Aleyrodes [Homoptera : Aleurodidai], Aiso, in illustration of 

 his papers, specimens of the parasitic wasps of the genus 

 Megalyra, and of the proposed new species of Argas, 



