BY ARTHUR WHITE. 19 



Diatomineura auriflua, Donovan. 



Syn. Pangonia solida, Walk. 



Syn. Pangonia dives, Macq. 



Antennae black; thorax grey -brown (*) or black (9), 

 fringed with golden hairs ; abdomen black with sides and 

 centre-spots yellow or golden ; legs dark brown or black ; 

 wings hyaline. 



Length. Female, 14 mm.; male, 15 mm. 



Length of proboscis. Female, 3 mm. ; male, 2.5 mm. 



Hah. Tasmania and Eastern Coast of Australia. 



Female. Front dark grey, dusted below and at sides 

 with light grey. Antennae and proboscis black ; palpi 

 rich brown. Thorax black, with three light grey stripes, 

 the whole fringed with golden hairs, and with a patch 

 of black hairs on each side before the base of the wings ; 

 scutellum light grey. Abdomen black, with sides, centre- 

 spots, and hindmarginsi of second to fifth segments cov- 

 ered with yellow shining pubescence, sixth segment with 

 golden pubescence. Legs brownish-black, the femora bear- 

 ing abundant pale yellow pubescence. Wings hyaline, the 

 cubital fork without a recurrent veinlet. 



Male resembles the female, but the eyes are joined and 

 are more hairy, the thorax is browner and more pubes- 

 cent, tho abdominal centre-spots and margins are bright 

 golden, and thei legs are browner. 



This species is easily distinguished by its black and gold 

 abdomen and wholly black antennas. It seems to be widely 

 distributed in Tasmania, but is not common. The males 

 particularly affect box tree blossom. 



Pangonia dives, Macq., which I have placed under D. 

 auriflua, has previously been listed under the genus 

 Corizoneura ; it was, however, described by Macquart as 

 having hairy eyes, so it cannot belong to that genus, 

 and as Macquart's description agrees exactly with that 

 of I), auriflua, I consider that it is probably identical 

 with this species. 



Diatomineura ianthina, Sp. nov. 



Antennae and palpi black ; thorax olive-black, with 

 three light grey stripes ; abdomen deep violet-brown, with 

 white centre-spots ; legs deep brown ; wings hyaline. 



Length. Female, 14 mm. 



Length of proboscis, 4.75 mm. 



Hab. Mangalore. 



Female. Face grey, with a few scattered black hairs ; 



