1910.] F0SS0RIAL WASPS OF AUSTRALIA. 269 



Hab. The locality is given on the label as Endeavour River, 

 Queensland, but others from the same source and similarly labelled 

 are Victorian, so probably this species is also from Victoria. 



The palpi are not very slender, but the three apical joints of 

 the maxillary palpi are longer than the others. In all species of 

 Tachynomyia which I have taken in North Queensland these 

 three apical joints are very long and slender. 



Type in the Berlin Museum. 



Zeleboria olivei, sp. n. 



S . Clypeus produced and rather narrowly truncate at the 

 apex, very finely punctured, clothed with short white pubescence. 

 Head finely and very closely punctured ; the interantennal pro- 

 minence not very broad, deeply bilobed at the apex ; the antennae 

 filiform, slender, nearly as broad as the head, thorax, and median 

 segment combined ; ocelli very near together, the posterior pair 

 more than twice as far from the eyes as from each other ; the 

 three apical joints of the maxillary palpi long and slender, the 

 galea with a faintly marked dividing-line ; the fringe on the sides 

 of the head sparse and white. Thorax rather slender, narrower 

 than the head, closely and finely punctured-; the pronotum very 

 finely punctured, with the anterior margin strongly raised. 

 Median segment very finely rugulose, almost smooth at the base. 

 Scutellum rather narrowly truncate at the apex, with an obscure 

 longitudinal carina. Abdomen slender, elongate-fusiform, smooth 

 and shining, the division between the two basal ventral segments 

 scarcely marked. Hypopygium rounded, with an acute apical 

 spine. 



Black ; the tegulse fuscous. Wings very pale f usco-hyaline, 

 nervures fuscous. 



Length 14 mm. 



Hab. Cooktown, Q. 



A slenderer species than lo?igicomis Turn. 



Phymatothynnus nitidus Sm. 



Thynnus (Agriomyia) nitidus Sm. Cat. Hym. B. M. vii. p. 30 

 (1859), tf. 



c? . The apical joints of the antennae are arcuate beneath. 



2 . Mandibles falcate, slender and pointed ; clypeus with a 

 very short carina from the base not reaching the middle. Head 

 very slightly convex, twice as broad anteriorly as long, strongly 

 rounded at the posterior angles, rather sparsely but not finely 

 punctured, each puncture bearing a pale fulvous hair ; a fine and 

 short frontal sulcus. Antennae inserted nearly as far from each 

 other as from the eyes, the front between them not bituberculate. 

 Thorax and median segment shining and almost smooth ; the 

 pronotum about half as wide as the head, rectangular, nearly as 

 long as broad, with two small tubercles on the anterior margin. 

 Median segment raised into a hump-like tubercle just behind the 



