Mr. E. E. Turner on Fossorial Ilymenoptera. 547 



A common species. As in some otlier forms, this species 

 ranges into the mountain-districts of S.E. Australia. 



Agriomyia odyneroides, Westw. 



Thynnus [Agriomyia) odyneroides, Westw. Arc. Ent. ii. p. 109 (1844). 

 62- 



Bab. Hobart {J. J. Walker). 



This is very near A. maculafa, Gudr., but differs in the 

 shape of the head and pronotum in the female, as well as in 

 the markings on the median segment in the male. It must 

 therefore be regarded as distinct, and not as a mere variety. 

 The males in Agriomyia are very difficult to separate when 

 the females are not available, owing to the want of good 

 structural differences, and until we iiave long series it is not 

 well to depend too much on colour-distinctions. Unfortu- 

 nately species of this group are not taken coupled nearly so 

 frequently as most Thynnidse. 



West wood does not give any locality for odyneroides, but 

 most of the specimens I have seen are Tasmanian. There 

 are also males in the British Museum from Adelaide, from 

 Jindabyne, N.S.W., 3000 ft., and from " Moreton Bay." 

 All these have the third abscissa of the radius distinctly longer 

 than in Tasmanian specimens. 



Thynnoturneria decipiens, Westw. 

 Thynnus decipiens, Westw. Arc. Ent. ii. p. 105 (uote), p. 124 (1844) 



Hob. Hobart {J. J. Walker). 



Tmesothynnus humilis, Ericbs. 



Thynnus humilis, Erichs. Arch. f. Naturges. viii. p. 264 (1842). § . 



<$ . Black ; a spot at the base of the mandibles, the lateral 

 and apical margins of the clypeus narrowly, a line on each 

 side at the anterior angles of tlie pronotum, a spot on the 

 tegulse, and a line on the po.strfcutellura pale whitish yellow ; 

 the posterior margin of the pronotum luteous. Clypeus 

 convex, smooth at the apex ; head and thorax finely and very 

 closely punctured, the interantennal prominence only slightly 

 developed ; scutellum strongly convex. Median segment 

 rounded, shining at the base, finely punctured. Abdomen 

 sparsely punctured, shining, the segments strongly constricted 

 at the base, the apical segment strongly punctured, the apical 



37* 



