54 Transactions.— Zoology. 
9. Dierertna, Meyr 
Thorax generally with a very small crest, or smooth. Antenn# in male 
biciliated with fine long cilia. Palpi moderate, porrected, second joint 
triangularly scaled. Forewings with costa simple in male. Hindwings not 
broader than forewings. Forewings with 12 veins, 7 and 8 separate, 7 to 
hindmargin. Hindwings with 8 veins, 8 and 4 from a point, 5 slightly (or 
rarely strongly) approximated at base to 4, 6 and 7 stalked (rarely separate). 
Distinguished from Tortriz by the long fine biciliations of the antenna, 
and usually by the stalking of veins 6 and 7 of the hindwings. There are 
several Australian species. Of the three given hereafter, D. imbriferana is 
a typical species of the genus. D. incessana differs in some respects, having 
veins 6 and 7 of hindwings separate, and more elongate palpi, for which | 
reasons I formerly referred it to Arotrophora, but it is without the charac- 
teristic antennal dentations of that genus, and the antenne appear here to 
furnish the most reliable characters. D. jactatana also diverges in respect 
of the separation of veins 6 and 7 of hindwings, and in having vein 5 
closely approximated to 4 at base; acquaintance with the male shows its 
former conjectural position to have been erroneous. The three species are 
very dissimilar and = pom — 
A. Forewings whitish $ Se c s ys .. 25. imbriferana. 
B s or aso ous. 
1. à sinuate black streak in dise ifs s TA "e .. 23. jactatana. 
2. No black streak ue Ge : n ae .. 24, incessana. 
23. Dipt. jactatana, Walk. 
(Batodes jactatana, Walk., Brit. Mus. Cat., 817; Sciaphila flexivittana, ibid., 353; 
Pedisca privatana, ibid., 382; Grapholitha voluta, Feld., Reis. Nov., Pl. CXXXVII., 39.) 
Minor, alis ant. ochreis, sspe fusco- suffusis, postice fusco-maculatis, 
striga disci antica sinuata nigra; post. griseis. F 
Male, fenale.—18-19 mm. Head, palpi, antenne, and thorax brownish- 
ochreous or fuscous ; palpi rather elongate, externally dark fuscous. Abdo- 
men ochreous-grey. Legs whitish-ochreous, anterior and middle pair 
suffused with dark fuscous, except towards apex of joints. Forewings 
moderate, somewhat dilated posteriorly, costa moderately arched, hind- 
margin slightly sinuate, not oblique; varying from light brownish-ochreous 
to fuscous, paler towards anterior half of costa; a sinuate blackish streak 
in disc, reaching from near base to middle, anterior extremity obscurely 
bent downwards to inner margin; five or six small dark fuscous spots on 
costa, the two last coalescing below costa; a small dark fuscous spot in 
dise beyond middle, another on middle of hindmargin, and a third on anal 
angle; all these spots obsolete in darker specimens: cilia light ochreous, 
with a fuscous line near base. Hindwings grey; cilia whitish-grey, with a 
grey basal line, . 
