HuTTON. — Two Netv Flies. 



153 



The following key to the species may be usef 



1. Abdomen aeruginous. 



Face j'ellowish-white . . 

 Face greyish-white 



2. Abdomen pure-blue. 



Scutellum brown. 

 First abdominal segment brown 

 First abdominal segment blue 

 Scutellum entirely blue. 

 Face dark-grey . . . . . . 



Face golden-yellow 

 Scutellum margined with red or brown. 

 Thorax blue 

 Thorax greenish 

 •3. Abdomen brown, tessellated with white. 



A reddish-brown spot on each side of the face. 

 First posterior cell distinctly closed . . 

 First posterior cell more or less open. 

 Femora black. 



Abdomen with red spots 

 Abdomen without spots 

 Femora tawny. 



Tibise and tarsi black 

 Tibiae and tarsi tawny . . 

 No spot on the side of the face. 



Third joint of antennae more than three times 



the length of the second . . 

 Third joint of the antennas less than three 

 times the length of the second 



4. Abdomen pale-fulvous 



5. Abdomen black . . 



ul:— 



atrox. 

 permciosa. 



feredayi. 

 nyctemeriana. 



nefaria. 

 aurea. 



marginata. 

 exitiosa. 



tecta. 



clathrata. 

 orasus. 



efferata. 

 fulvipes. 



casta. 



inconspicua. 



brouni. 



funesta. 



Art. XII. — Ttuo Netv Flies. 



By Captain F. W. Hutton, F.E.S. 



[Read before the Philosophical Institute of Canterbury, 4th November, 



1903.] 

 Limnia castanea, sp. nov. 



"Vertex and antennae dark chestnut-brown ; frontal band 

 nearly black ; face and fore coxae silvery. Thorax tawny on 

 the top ; the sides dark-brown, with a broad silvery longi- 

 tudinal band. Abdomen dark-tawny. Halteres tawny. Legs 

 tawny, the tibiae and joints of the tarsi tipped wiih dark- 

 brown. "Wings pale-yellowish, with brown spots ; the mar- 

 ginal cell with four spots outside the subcostal cell, and two 

 smaller ones inside it. The submarginal and first posterior 

 with ocellated spots, the ocelli of two adjacent spots often 

 running together. The other cells with simple spots and 

 bands ; the cross-veins slightly margined. Length, 7 mm. ; 

 wing, 7 mm. 



"Wellington. 



Allied to L. ohscura. 



