BY ROWLAND E. TURNER. 185 



9. Clypeus with a strong carina from base to apex. Head 

 large, broader than long, strongly rounded, sparsely punctured, 

 with a longitudinal sulcus between antennae, eyes elongate-oval, 

 not touching base of mandibles. Pronotum rather narrower 

 than head, twice as broad as long, anterior margin slightly arched. 

 Thorax and median segment sparsely punctured. Abdomen 

 shining, sparsely and shallowly punctured, first segment vertically 

 truncate anteriorly, surface of truncation slightly concave, apical 

 margin raised, with several transverse striae before it. Second 

 segment with about twelve more or less irregular transverse 

 carinae; fifth ventral segment rugose at base, longitudinally 

 striated at apex. Pygidium vertically truncate posteriorly and 

 longitudinally striated, moderately broad, the sides parallel and 

 produced into stout spines near apex of epipygium, hypopygium 

 rounded at apex. Black; mandibles except at apex, antennae, 

 vertex, disc of pronotum and legs except coxae ferruginous; front 

 of head, mesonotum, sides of pronotum and of median segment, 

 a broad band on first abdominal segment above truncation, and 

 a very broadly interrupted band on the four following segments 

 above and beneath orange-yellow. Length 21 mm. 



Hab. — Melbourne(French; <J9 in cop.). 



This is the Victorian form of T. rufiventris Guerin. In 

 addition to the difference in colour the male may be distinguished 

 by the shorter clypeus; and the female by the more elevated and 

 less numerous carinae on the second abdominal segment. 



A male specimen senc by Mr. French was bred from a cocoon 

 similar to that from which I have bred Salius australasice Sm., 

 one of the largest of our Pompilidae. 



127. T. (Lophocheilus) rufiventris Guer. 



Thynnus rufiventris Guer., Voy.Coq.Zool. ii. 2, p.227, 1830 

 [1839]( C J); Sm., Cat. Hym. B.M. p.13, n.7, 1859(9). 



$. Abdomen elongate-fusiform, shining, with a slightly im- 

 pressed transverse line near base of segments 2-6, apical margin 

 of the same segments depressed at sides. Hypopygium with a 

 prominent tubercle on each side at basal angles, thence triangular 



