70 AUSTRALIAN TABANID^E, IV., 



Tabanus geraldtonensis, sp.n. 

 (Plate i., fig.12). 



9. Length, 12; length of wing, 1 ]• width of head, 45 mm. 



Head: face and cheeks grey, with grey pubescence; subcallus 

 pale dirty yellow; front parallel, grey, yellowish toward the base 

 and along the sides, pubescence black, frontal callus about one- 

 half the width of the front at base, deep red, Mask-shaped, with 

 a stout, lineal extension reaching the middle of the front, a few 

 black hairs on the vertex; eyes black, pubescence very short and 

 scanty; first two joints and basal half of base of third joint dull 

 reddish, rest of basal portion of third joint dusky, annuli black, 

 pubescence on first two joints mainly black; palpi slender, about 

 two-thirds the length of proboscis, yellowish, ending in a tine 

 point, pubescence yellowish, beard grey. 



Thorax black, shoulders obscurely reddish, tomentum grey, 

 pubescence black and golden, grey on sides, scutellum similar to 

 thorax ; pleura? obscurely black and reddish, tomentum and 

 pubescence grey. 



Abdomen reddish-brown, darker on last three segments, seg- 

 ments one to four black in the centre, all segments with median, 

 grey, triangular spots, with their bases resting on the posterior 

 border, segmentations and sides of segments yellowish, pubes- 

 cence black, pale on the pale areas; venter reddish, black in the 

 centre, pubescence pale. 



Legs : fore-coxa; pale, with long, grey pubescence, mid and 

 hind dusky, tomentum and pubescence grey, the latter shorter 

 than on fore-coxa?, femoro-coxal joint of foreleg slate-coloured, 

 fore-femora and basal half of tibiae yellowish, the rest dusky, mid- 

 femora and tibiae yellowish, tarsi dusky, basal half of hind-femora 

 dusky, the rest yellowish, tibia? and tarsi wanting, tarsi of fore- 

 and midlegs black, pubescence pale and dark on femora, black 

 on tibia? and tarsi. 



Wings clear; veins brown; stigma yellow; a small appendix 

 present. 



Hah.— W.A. : Geraldton (J. Clarke, Coll. \Y W. Froggatt, 

 No.75F). 



Closely related to T. antecedent) Walker, but differing in having 



