new or Viltle-known Tipulidaj. 97 



just hcfoic its fork, so the larj^o clo.'ir blotcli in cell M is 

 (•(jiistric'tcd only on its ceplialic side; l);ises of cells \st A and 

 2nd A more extensively pale. \'enatiou : basal section of 

 R.^ short, in some eases aUnost lackinj^; r joining 7^2 close 

 beyond the fork of /^o+3> basal deflection of /^^^.j short, less 

 than twice r-m ; basal sections of -Afi+2 and 3/3^, subcqual ; 

 |)etiole of cell J/, only a little longer than in. Aljdonicn 

 (lark brownish grey, very slightly darker dorso-mcdially, the 

 basal tergites broadly oehreons on the sid< s; basal sternites 

 a little more brownish than sternites 6 to 8. 



Hub. New Zealand (South Island), 



Holotype, ^, Mt. Grey, Canterbury, altitude about 

 1000 feet, November 27, 1921 [J. IT. Campbell and Stuart 

 Lindsay). 



I'uratupoti/pe, 1 ^ ; puratypes, 1 ^ , White liock, 

 j\It. Thomas, Canterbury, altitude about 1000 feet, Decem- 

 ber 18, 1921 [J. IV. Campbell and Stuart Lindsay); 9 cJ c? , 

 Glentui, Ashley Co., Canterbury, December 1921 {Stuart 

 Lindsay). 



"Swept from tussock grass on hill-side/' 



Macromastix ijreyana is distinguished from M. huttoni, 

 Edwards, by the coloration of the wings, thorax, and 

 abdomen. 



Macromastix imfibasis, sp. n. 



Related to M. rufiventris^ Edwards; raesonotal prfcscutum 

 >vith three black stripes ; wings uniformly infuscated, the 

 jale discal blotch larger and better delimited ; abdominal 

 tergites 1 and 2 with the lateral margins rufous-orange. 



Male. — Length about 95 mm. ; wing 13'2 mm. 



Differs from AL rufiventris as follows : — 



Mesouotal prajscutum light grey with three conspicuous 

 black stripes, the median stripe entire, broadly cuneiform ; 

 scutellum and postnotum light ashy grey. ^^ ings with the 

 dark suffusion more uniform, the pale discal blotch at the 

 cord larger and better defined, including the outer end of 

 cell ii, the basal third of cell \st AJ^ and a small area in 

 cell M ; in addition, the centre of cell M, the bases of cells Cu, 

 \st A, and 2nd A, and the pnarcular cells are less distinctly 

 pale ; no clear obliterativc area before stigma. Venation : 

 petiole of cell M^ about two-thirds m ; basal section of M^ 

 only a little shorter than the basal section of iV)^2 '■> ^'cH 

 ^Ind A wider. Abdominal tergites with the rufous-orange 

 colour confined to segments 1 and 2; segment 1 rather 

 broadly infuscated medially; segment 2 narrowly infuscated 



Ann. cL- Mwj. N. Hist. 8er. 'J. Vol. x. 7 



