256 NOTES ON AUSTRALIAN TABANIDAE^ ii., 



and the stripe extends the full length of the segment. The difference may be 

 due to abrasion, as all the specimens (4) are abraded to some extent. 



The species is allied to T. queenslandi Ric. and T. strangmami Ric. but differs 

 from both, inter alia, in the much narrower forehead. The extent of the abdo- 

 minal yitta varies in the three species. 



Type in Australian Institute of Tropical Medicine, Townsville. 



Tabanus strangmani Ricardo. 



Rieardo, Ann. Mag. Nat. Hist., (8), xiv., 1914, p. 393. 



Additional Locality: Moa Island, Torres Strait (Rev. G. A. Luscombe, 

 March). 



Tabanus palmensis, n.sp. (Text-figs. 5 and 6). 



A medium-sized dark brown species with white spots on abdomen. 



$. Face and cheeks clothed with hoary grey tomentum, with a few scanty 

 fine whitish hairs; beard white; subcallus not prominent, clothed 

 with yellowish-brown tomentum in middle and grey at sides. Palpi dark brown, 

 lighter on inner surface; second joint rather feebly thickened at base, ending 

 in a long point, with rather dense dark pubescence. Antennae (Text-fig. 5) 

 yellowish-brown, the first joint somewhat darker and the annvili infuscate; first 

 joint about twice as long as second, not concealing it, both set with black hairs. 

 Third joint moderately broad at base with small obtuse tooth with a few black 

 hairs. Forehead (Text-fig. 6) narrow, parallel-sided, densely clothed with brown 

 tomentum and rather scanty dark pubescence; callus gTeatly elongate, broad at 

 base, not quite reaching eyes, gradually narrowed to a long linear extension 

 reaching to beyond middle. Eyes bare. 



Thorax brown, with slight, very indefinite traces of darker markings, clothed 

 with erect dark hairs and with scattered pale appressed pubescence, shoulders 

 with long dark hairs; pleurae clothed with grey tomentum with tufts of long 

 white hairs. Scutellum similar to dorsum, slightly darker in middle, with erect 

 dark hairs and a somewhat scanty fringe of rather short pale pubescence. Abdo- 

 men deep brown, almost black, the segmentations very narrowly edged with grey, 

 expanding in centre to form a series of triangular spots with apex pointed for- 

 wards on segments 1-5, with dark appressed pubescence on all the segments, the 

 median row of spots clothed with whitish pubescence; lateral margins of seg- 

 ments grey, with grey pubescence. Venter clothed with dark brown tomentum, 

 rather broadly banded on segmentations, with hoary grey expanding laterally, the 

 pubescence dark in the basal portions, pale on the segmentations and lateral ex- 

 pansions. Legs reddish-brown, the anterior femora and tibiae darker except the 

 Isasal third of tibiae, the other tibiae infuscate at apices; tai-si dark. Wings dark 

 grey, hyaline, slightly darker along the fore-border and very indistinctly shaded 

 along the longitudinal veins; veins dark brown, stigma dark, conspicuous, no 

 appendix. 



Dimensions: Type $, 14 mm.; other specimens, 12-13 mm. Wing, 12 mm.; 

 width of head, 4.5 mm. ; width of frons, 0.40 mm. 



Hab.— Palm Island, N. Queensland. (1.12.20, Plill No. 1361). 



Described from 6 females. 



This species does not agree with any known to us, nor with the descriptions 

 of any of the outstanding species. It is perhaps most nearly allied to T. doddi, 

 but it is smaller and of a somewhat narrower form, though small specimens of 

 T. doddi are not unlike it in shape. The antennae and wings are, however, very 

 different. 



