34 MK. R. J. TILLYARD : LIFE-HISTOKIES AND 



? 1-2 much swollen, 3 only slightly pinched, 4-10 cylindrical, thicker. 

 General colour very dark brown, tending to black, especially at distal ends o£ 

 segments, and more especially on 6-9. 



Appendage s. — cJ . Superior averaging 4 mm., inferior only about half 

 as long ; superiors slightly waved, converging but not meeting at tips ; 

 inferior narrow subtriangular, hollow, upcurved ; colour semitransparent 

 brown (Plate 8. figs. 7-8). ? short, 0*6 mm., straight, pointed, pale brown. 

 Under segment 10 of ? is a projecting dentigerous plate or shelf, somewhat 

 incised medially, with small black teeth arranged in an irregular set of 3 

 or 4 on each side of the median incision (Plate 8. fig- 25). 



Types: c? 2 , Coll. Selys. 



Habitat. Typical T. godejfroyi occurs not uncommonly on all the central 

 mountain-ranges of Eastern N.S.W., viz. Blue Mountains and their southern 

 spurs as far as Moss Vale. It also occurs occasionally at a lower elevation 

 of 600 to 1000 feet in the hills between Sydney and the Hawkesbury River. 

 On the New England Ranges it is rare except at very high elevations, e. g. at 

 Guy Fawkes, 4000-5000 feet. It probably extends to the Darling Downs, 

 though I have no records of it from Queensland. End of November to 

 February. 



The density of the brown bands on the wings is subject to much variation. 

 In most specimens the band is dark and continuous, the cross-veins appearing 

 pale on the band. This condition intensifies with age. At Ebor (Guy 

 Fawkes), N.S.W. (4000-5000 feet above sea-level), I found, besides this 

 typical form, a form in which the band was extremely light and in places 

 scarcely discernible. The less mature specimens simply showed the band as 

 pale saffron, crossed by dark brown veins; in the maturer specimens the 

 band tends to break up and the pigment collects around the cross-veins, 

 leaving- clear spaces in between. This colouring corresponds with a difterence 

 in habit. Usually the insect keeps to the steep rocky parts of deep gullies, 

 hiding under rocks and in caves during the day, and only appearing towards 

 evening to indulge in its ghost-like flight. But at Ebor it had found its way 

 up to the tops of the gullies, and was evidently becoming accustomed to the 

 more open conditions, for I often captured it flying in company with 

 AustrooiscJina multipunctata during the daytime. I propose to call this form 

 variety liyalina (Plate 3. fig. 2). 



T. GODEFFROYi BREViCAUDA, n. subsp. (Plate 3. fig. 3.) 

 The following are the chief points of difi"erence from typical T. godef- 

 jroyi :— 



Size somewhat smaller, especially in c? (see Table of Comparison, zn/m).. 

 Front uniformly brown above, but not so dark; the anvil-point touched with 

 black, and almost as sharp as in the type-form. W in g s. — Costa very pale, 



