new or little-known Tipulidoe. 311 



tlic (lencction of R4+5; veins 7?^ and /\\ <;cner!illy parallel to 

 tiie inai'j;iii ; iimt'r fiids of cells /f,, 7f-, and \st M.^ in alij:;ii- 

 ineiit; r—in gmitly arcuate; cell .]J i small, less than oiie-lialt" 

 its petiole; cell 1st M^ relatively small, tlie basal deflection 

 of C'«i near three-fiftlis its length; arculus unbroken. 



Abdomen dark brown, the sternites a little paler ; hypo- 

 py^ium obscure yellow. Male hypopygium unusnally large 

 and eomplicated in structure for a memb*er ot this genus. 

 Ninth tergite terminating in two slender straight rods that 

 lie parallel to one another, Pleurites produced caudad 

 into slender black rods that are expanded at their tips 

 and here weakly hairy ; dorsad of these rods on either 

 side arises a very long, pale, curved appendage, directed 

 caudad, the tips niesad, the extreme apices blackened. 

 Ninth sternite appearing as two subglobular setit'erous 

 lobes. Eighth steinite tapeiing to the apex, which beais a 

 conspicuous comb of blackened teeth. 



Hub. New Zealand (North Island). 



Holotype, S •> Ohakune, altitude JiOlJO feet, October 10, 

 19.21 (7. R. Harris). 



Gynoplistia concava, sp. n. 



General coloration grey-pruinose, the prsescutum M-ith 

 three brown stiipes; antennje 17-scgnientcd ; femora yellow- 

 ish-brown with a narrow, dark brown, subterminal ring; 

 Mings with a strong yellow tinge and conspicuous dark 

 brown seams along the cord and at tlie origin of Us; 

 abdominal tergites brown, the eighth tergite blackened; male 

 ljyi)opygium with the ninth tergite bearing a broad median 

 lube whose margin is gently concave. 



Male. — Length 14*5-15 mm.; wmg 12'o-13"4 mm. 



Female. — Length 18 mm.; «ing 1-1'5 mm. 



Kostrum brown, sparsely prumose; palpi dark- brown. 

 Antennae 17-segmented, the formula being 2 + 2 + 7 + 6 or 

 in cases 2 + 2 + 8 + 5, the tentli flagellar segment sometimes 

 being pectinate; scapal segments reddish brown; basal seg- 

 ments of flagellum pale, the lemaindcr dark brown, the 

 })ectinations black; terminal flagellar segment elongate, 

 appioximately twice as long as the subterminal segment; 

 longest })ectination (segment 8) about two and three- 

 fourths the segment. Head dark-coloured, dull grev- 

 pruinosc. 



IMesonotal prrcscntum grey with three brown stripes, the 

 lateral stripes brighter brown and more distinct than the 

 median vitta ; pseudosutural foveas deep horn-colour; 



