BY G. U. HAUDY. 09 



? Dischistus livibatus, Bigot. 

 Sparnopolius limbaUis, Bigot, Ann. Soc. Ent. France (7), 

 Ixi., 1892, p. 369. 

 Note. — This species has not been recognised in the 

 various collections under revision. 



Genus SystoecJuis, Loew. 

 Systoechus, Loew, Neue Beitr., iii., 1855, p. 45. Id., White, 

 Proc. Roy. Soc. Tasm., 1916;, p. 193. 



Choristus, Walker, Ins. Saund. Dipt., 1852, p. 197. 



Note. — There are fourteen names belonging to species 

 that undoubtedly conform to the characters of the genus 

 Systoechus, and of thsse only one has hitherto been placed in 

 synonj^my. 



In the collections under revision three species are recog- 

 nised as distinct, and conform in their characters to de- 

 scribed species. A number of undoubtedly distinct spscies do 

 not conform to the descriptions. 



Systoechus jylatyurus, Walker. (PI. XVI., fig. 9.) 

 Bombylius platyurus, Walksr, List Dipt. B.M., ii., 1849, 



p. 286. 

 Bombylius cra.ssus. Walker, ibidem, p. 287. 

 Systczchus crassus, White, Proc. Roy. Soc. Tasm., 1916, 



p. 196, text fig. 34. 

 Bombylius notatipennis, Macquart, Dipt. Exot.. suppl. 5, 



1854, p. 78, PI. iv., fig. 2. 

 Bombylius punctipennis, Thcmscn, Eug. Rssa, Dipt., 1868, 



p. 487. 

 Synonymy. — There appear to be thres distinctive forms 

 cf this species; one, B. platyurus. Walker, from Western Aus- 

 tralia, was placed by White as a synonym of the East Aus- 

 tralian form, B. crassus, Walker. The Tasmanian form 

 was described by White as S. crassus. The names given by 

 Macquart and Thomson evidently belong to ths same species. 



Systo3chus vetustus, Walker. 

 Bombylius vetustus, Walker, List Dipt., B.M., ii., 1S49, 



p. 286. 

 Bombylius sericaus, Macquart, Dipt. Exot., suppl. 4, 1850, 



p. 116, PL xi., fig. 3. 

 Bombylius penicillatus, Macquart, ibidem, p. 118, PL xi.. 



fig. 7. 



