DESCKIPTIONS OF AUSTRALIAN ^SCIININ^. 33 



The habitats of these four forms are very distinct, as follows : — 



J. brevicauda. Mountains of Victoria and Kosciusko, N.S.W. 



T. godeffroiji. Blue Mountains and coastal spurs ; New England Ranges, 

 above 3000 feet, N.S.W. 



T. Cyclops. Mountain scrubs of Northern N.S.W. and S. Queensland, 

 1500-2500 feet. 



T. tillyardi. Kuranda, Herberton, and Atherton districts of N. Queens- 

 land, 1000-4000 feet. 



T. GODEFFROYi GODEFFROYI, Selys. (Plate 3. fig. 1.) 



This form has been well described by both Selys and Martin (loc. cii.). 

 Unfortunately ;, however, Martin, while figuring the typical male appendages, 

 seems to have used a specimen of 7\ godejfroyi brevicauda (probably from 

 Alexandra, Vic.) in re-writing his description ; for he says of the appendages 

 "I'inferieur presque aussi long,^' in spite of his figure. The following are 

 the distinguishing points of this form : — 



Wings. — Triangles of medium length (about 3*5 mm.), that of fore-wino- 

 much narrower than that of hind-wing, both usually 5-celled in (^ , 5-7 

 in ? ; basal side of triangle slightly less than 1 mm. distal from arculus 

 (Plate 8. fig. 17). Pterostigma averaging 3"8 mm., ^ rose-brown, ? pale 

 brown, slightly biconvex, about 0'8 mm. wide (Plate 8. fig. 13). Membra- 

 nule white, fairly large, 1 mm. in fore-, 2 mm. in hind-wing (Plate 8. fig. 29). 

 Costa pale brownish. On all four wings the brown band covers the basal 

 three-fourths of the subcostal space, most of the basilar space (its lower 

 distal portion excepted), all the sub-radial space up to nodus ; at the nodus 

 it becomes a large dark blotch 2-2'5 mm. in width and depth, b'^^S f^istal 

 from nodus ; thence onward the band fills the space between R^ and M-^ up 

 to pterostigma and the distal portion of the costal space right up to tip of 

 wing ; the strong brace is usually suffused, and the band sometimes runs 



under the stigma also to the tip. Nodal Indicator Ih-^^' o^' *^-''''' ^^ 1. The 

 ^ ^ ||circ. 20, circ. 22 1 



most usual form of venation at nodus is shown in Plate 8. fis'. 21. 



Head. — Face slightly hairy, pale shiny brown all over, labrum slightly 

 brighter. Front strongly anvil-shaped, the upper portion dark brown all 

 over, shading to black at the angle (Plate 8. fig. 27). 



Thorax. — Rich chocolate-brown above, with pale cream- or straw- 

 coloured dorsal and interalar ridges ; humeral bands straight, distinct, pale 

 straw- or cream-colour, about 0*5 mm. wide, bounding the rich brown dorsal 

 area on each side ; sides dull brownish, not much paler than above, with 

 indications of a pale stripe along sutures. Legs fairly shoit, profemora 

 nearly black, other femora pale brown with black elbows ; tibise pale brown, 

 tarsi medium brown. 



Abdomen. — ^ 1-2 swollen, 3 pinched, 4-10 medium cylindrical. 



LINN. JOURN. ZOOLOGY, VOL. XXXIII. 3 



