Ml. ,]. K. Mai loch on Encode Muscariilje. 1-41 



lie Una (nldila. Walker. 



A widely (listrilmtcil speiries in Australia, wliii-li is 

 rcpresentcil by specimens from Maiij^irlorc and Hrighton, 

 'J'asmania {.t. H'/iitc), Hurpeii^ary, Uueeuslaiul ( 7'. L. Baa- 

 crujt), unci Vietoria (C. Fn-ncit). 



Ilt'lina //i/irriilris, sp. n. 



Mitlc. — A laiprer specic^s than the forej^uinj];, with the wiii^^s 

 slightly hruNvniiih and the spots on dorsum ot" ahdonien less 

 di>tiuet. General colour anil habitus as in pa'cUlveulris. 



Strueturally similar to both the foregoing si)ieies, 

 distiMgnisliable as indicated in the key. 



Lenjjth 8 mm. 



Type, Mangalore, Tasmania, l.iii. 1913 {A. White). 



Helina trinubiJifera, S[). ii. 



Female. — Black, shining, with dense brownish-grey 

 ])ruinescence. Head black ; fious 0[)aque, orbits, face, and 

 cheeks with whitish prninescence. Thorax with four broad 

 black, vittte, the submedian pair subcontiguous. Abdomen 

 witii a pair of large, iiregnlarly-margined, black marks on 

 dorsum ot" segments 2 and 3, which cover almost the entire 

 ilisc, the other tergiles irregularly marked with black also. 

 Legs tawny, tarsi brown. Wings clear, both cross-veins and 

 a round spot about middle of first |)OStei'ior cell close to 

 third vein daik brown. Caly])trie whitish, niaigins brown, 

 llaltercs yellow, knobs brown. 



Kyes subnude ; frons about one-tliird of the head-width, 

 orbital bristles uot vci-y long ; longest hairs on arista 

 distinctly shorter than width of third antennal segment. 

 Postsutural dt)rso-centrals 3; prealar very short. Fore til)ia 

 with a median puslerior bristle ; mid-tibia with three posterior 

 bristles; hind femur with one [)reapical antero-ventral bristle; 

 hind til)ia with two antero-dorsal and thre(^ antero-ventral 

 bristles : outer cro?s-veii) almost straight. 



Length 5 mm. 



lypt, Mt. Wellington, Tasmania, 3. x. VJVZ {A. jr/iile); 

 paratypc, Victoria (C. French). 



IJelinu victoria J sp. u. 



Female, — Bi longs to tlic same group as addita, Walker. 

 Differs as stutiil in key. In colour more brownish, the cross- 



