BY ROWLAND E. TURNER. 115 



9. Head subglobose, nearly as long as broad, strongly rounded 

 posteriori}'-, depressed at base of mandibles, smooth and shining. 

 Thorax and abdomen smooth; pronotum narrower than head, 

 much broader than long, with a depression on middle of anterior 

 margin; median segment very short, obliquely truncate posteriorly. 

 First abdominal segment with the apical margin depressed, and a 

 raised curved mark emarginate in middle just before it; second 

 segment with four transverse carinas, including the raised apical 

 margin. A raised curved mark, sparsely punctured on each side 

 of third and fourth segments. Pygidium lanceolate, the sides 

 parallel, with a tuft of fulvous hairs on each side before apex. 

 Head and thorax fusco-ferruginous ; legs testaceous-brown; 

 abdomen castaneous. Length 4-5 mm. 



Hab. — Melbourne to Sydney (<J<j> in cop.). 



30. T. (Aeolothynnus) pulcherrimus, n.sp. 



<J. Clypeus short, narrowly truncate at apex. Head finely and 

 closely punctured, interantennal prominence not very strongly 

 developed, transverse at apex and divided by a longitudinal sulcus, 

 which extends on the front towards anterior ocellus. Thorax 

 shining, more finely punctured than head; median segment 

 almost smooth, obscurely transversely striated. Abdomen 

 elongate, almost smooth; first segment narrow at base, shorter 

 than in T. pulchellus, with a very deep median sulcus from base 

 almost reaching apex; second segment depressed at base. Hypo- 

 pygium narrow, with almost parallel sides, the apical spine short. 

 Black; mandibles, clypeus, two large spots between antennas, 

 margins of eyes narrowly interrupted at summit, margins of pro- 

 notum, a large quadrate spot on mesonotum, a large spot on 

 scutellum, a transverse line on postscutellum, a large mark 

 almost interrupted in middle on mesopleurae beneath anterior 

 wings, another beneath and behind posterior wings, a spot on 

 each side at apex of median segment, and a mark on each side at 

 apex of each abdominal segment except the seventh, produced 

 transversely and lunulate on segments 3-6, yellow ; a spot on 

 each side of vertex, second and third abdominal segments and 



