582 NEW OR LITTLE-KNOWN SPECIES OF AUSTRALIAN TIPULIDAE, i., 



gi'ey; veins brown. Venation: As in B. (Z.) debeauforti (cle Meijere) but Rs 

 more gently ai-cuated, so cell 1st Ri is elongate-oval in outline; cell 1st M2 about 

 as long as vein Cui beyond it. In the female, Rs is straighter. 



Abdomen brown, the hypopj'gium obscure j'ellow. Ovipositor with the valves 

 long and straight. 



Hab. — North Australia. 



Holotype, 3, "Mou. Isl." * (G. F. Hill) ; Allotopotype, 2. 



The subgenus Idioglochina now includes four described species, aU being 

 Australasian, with the exception of one Fonnosan form. The group had not 

 hitherto been found in Australia. 



DiCKANOMTIA ZONATA SkuSe. 



1889. Dicranomyia gonata, Skuse, Proe. Linn. Soc. N.S.W., (2), iv., 770. 

 Tasmania: Wilmot (Carter and Lea); Coll. South Australian Museum. 



Geraxoiiyia (Proaporosa) bancrofti, n.sp. 



General colouration obscure yellow, the disc of the praescutum and the scutal 

 lobes darker; wings subhyaline with brown dots at the origin of Rs, at r and at 

 the supernumerary crossvein in cell Sc. 



<S. Length, excluding rostrum, about 5.5 mm.; wing, 7.3 mm. S. Length, 

 excluding rostrum, about 6 mm.; wing, 7.5 mm. 



Rostrum about one-third longer than the head, pale brown, the uni-articulate 

 palpi a little darker. Antennae obscure yellow. Head pale brownish testaceous. 



Mesonotum pale testaceous yellow, the disc of the praescutum reddish-brown, 

 produced by the confluent stripes, the colouration continued caudad onto the 

 scutal lobes. Pleura obsem-e yellow. Halteres yellow. Legs with the coxae and 

 trochanters yellow; remainder of the legs pale brownish testaceous, the terminal 

 tarsal segments darker. Wingx subhyaline with three very indistinct brown dots, 

 one at the stigma, one at the origin of Rs, the third at the supernumerary cross- 

 vein in cell Sc ; veins pale brown. Venation : Se short, Sci ending about op- 

 posite one-third the length of Rs, Se2 immediately beyond the origin of Rs; Rs 

 angulated at origin; cell 1st M2 large, rectangular, gently widened distally; m 

 in alignment with the outer deflection of M3 ; basal deflection of Cui about one- 

 third its length beyond the fork of M. 



Abdomen light brown, the intermediate segments discoloured in the tj^De. 

 Hypopygium with the dorsal pleural appendage stout and black, the acute tip 

 short. 



Hab. — South Queensland. 



Holotype, <3, Burpengary, September 2, 1899 (T. L. Bancroft) ; Allotopotype, 

 ?, September 8, 1899. Types in the collection of the British Museum (Natural 

 History). 



Geranomyitt bancrofti is related to G. pictithorax Alex., differing in the 

 larger size and the colouration of the wing's and thorax. 



DiscoBOLA australis (Skuse). 



1889. Trochobola australis, Skuse, Proe. Linn. Soe. N.S.W., (2), iv., 784-785. 



New South Wales: Dorrigo (W. Heron), Coll. South Australian Museum; 

 Ourimbah, September 3, 1904 (R. Helms), Coll. Bishop Museum; Victoria: Ring- 

 wood, September 23, 1918* (G. F. Hill), Alexander CoU.; Tasmania: Strahan 

 (Carter and Lea), Coll. South Australian Museum. 



*[This is probably Moa or Banks I., Torres Strait.— Ed.] 



