BT E. W. FERGUSON AND G. T. HILL. 263 



border of the second segment also lighter; clothed with black pubescence, with 

 & few pale golden hairs along posterior margins, extending somewhat farther 

 forwards in median line, but not producing definite spots. Venter dark brown 

 with rather broad lighter segmentations, clothed with dark pubescence and with 

 rather sparse pale pubescence mostly on the segmentations. 



Leg's as in T. clawieallosus. 



Wings with anterior margins clouded with brown, this colour lightly suffus- 

 ing the longitudinal veins and more markedly the cross veins at base of discal 

 cell; stigma large and dark; appendix present. Long, 9 mm.; other females 

 Jong, 8.5, 10.5, 11 mm. ; wing, 9 mm. ; width of head, 4 mm. ; width of frons, 

 0.50 mm. 



Four specimens under examination, two of which are larger than the others, 

 and have a more reddish-brown abdomen. These specimens differ from typical 

 specimens of T. clavicallosits Rie. in the evident banding of the abdominal seg- 

 ments and in the more intensely shaded anterior margin and veins of the wings. 

 The differences hardly appear sufficient to justify specific separation, as in some 

 specimens of T. davicallosus the segmentations appear very slightly lighter than 

 the rest of the derm, while the costal cell is slightly shaded. 



T. darwinens-is Taylor is also closely allied to T. clavicallosus Eic, and we 

 were at first inclined to sink the name as a synonym. The abdomen is however 

 unicolourous, the wings perfectly clear and the antennae are somewhat different 

 in shape. 



Compared with the form described above from Moa Island, T. darwinensis 

 appears certainly distinct, but when compared with typical specimens of T. 

 clavicallosus the distinctions are less obvious. 



One might be inclined to regard the three forms as geogTaphical races of 

 T. clavicallosus^ but for the fact that specimens of darwinensis have also been 

 taken on Moa Island. 



Tabanus palherstoni, nov. nom. 



Tahanus minusculiis, Ferg. and Hill, Proc. Linn. Soc. N.S. Wales, xlv., 1920, 

 p. 466 (nee T. minuscuhcs Hine, 1907). — Tabanus minor, Taylor, Proc. Linn. Soc. 

 N.S. Wales, xliv., 1919, p. 64 (nee T. minor Macq., 1850). 



The substitute name T. minusculus was proposed by us to replace T. minor 

 Taylor, a name previously used by Macquart. It is now necessary to replace 

 our name for the species as it has already been used by Hine (Ohio Nat., (2), 

 Vol. 8, 1907, p. 227) for a North American insect. 



The new substitute name is taken from the old name (Palmerston) for Dar- 

 win, the type locality of the species. 



Tabanus geemanicus Ricardo. 



Eicardo, Ann. Mag. Nat. Hist., (8), xv., 1915, p. 282. 



We have received examples of this species from Moa Island, Torres Strait 

 (Rev. G. A. Luscombe, March) and from Mackay, Queensland (W. G. Har^-ey, 

 10.2.20). 



Tabanus quadratus Taylor. 



Taylor, Proc. Linn. Soc. N.S.W., xliv., 1919, p. 52. 



Numerous examples were captured (6.10.21) whilst attempting to bite 

 persons travelling in a motor boat between Port Darwin and Melville Island 

 (Northern Territory). The first files were noticed when the boat was about 



