594 STUDIKS IN AUSTRALIAN ENTOMOLOGY, NO. XII., 



(4) Synon3nnyof Australian species recorded by Tschitscherine, 

 Ic, 190^2:— 



Castelneaud'ia ( Homalosoma) atlas, Casteln. = Ilonialosoma 

 crassi/ornie, Sloane. 



Castehieaudia ( Homalosoma) vigor si, Govy = Homalosoma alter- 

 naiis, Sloane. I believe this to be correct. 



Cratogaster sulcatum, Blanch. = C. latum, Chaud. 



I record here that, from the type in the Australian Museum, 

 T'lharisus ater, Macl , = Cratogaster ( Tiharisus) laelas, Casteln. 

 M. Tschitscherine suggested this synonymyas probable (Z.c.,p. 512). 

 Tiharisus niger, Macl., is a species of Ceneiis, apparently C. 

 chalyheipennis, Chaud., from examination of Macleay's tj^pes in 

 the Australian Museum. 



Paranurus dilaticeps, Chaudoir. 



T richosternus dilaticeps, Chaud., Bull. Mosc. 1865, ii. p. 76. 



F. macleayi, SI., is said by M. Tschitscherine to be closely 

 allied to P. dilaticeps, Chaud., and but vaguely ditlerentiated 

 from that species. I should say, after consideration of M. 

 Tschitscherine's note on the species he identified as P. dilaticeps,* 

 that the species he had before him was P. macleayi, but I cannot 

 think that it is synonymous with P. dilaticeps. I would draw 

 attention to the following excerpts from Chaudoir's description 

 of P. dilaticeps : — 



(1) ^'' Genis ahrupte infiatis'^; (2) '' ocnlos convexos^' ; (3) [pro- 

 thorax] '^foveolaque utrinque juxta basin hreviter impressis^^; (3a) 

 ^^ margine cum sidco hasali transverso conjiuente"; (36) ^^ angidis 

 posticis sat rejlexis "; (4) '■'■ ehjtra thorace tertia pa^'te latiora.^' 



All these characters, particularly the el3^tra one-third wider 

 than prothorax, do not suit P. inacleayi, but are not inapplicable 

 to the species I take to be P. dilaticeps, which, in comparison 

 with P. macleayi, offers the following differences : — Form broader 

 and less convex; head (7*8 mm. across eyes) wath ej^es and post- 



* Hor. Ent. Soc. Koss., xxxv., 1902, p. 514. 



