14 HYMENOPTERA. 



transverse, slightly curved, delicate striation ; the apical segment 

 with a longitudinal striation. 



Hab. Australia (Port Jackson). 



8. Thynnus annulatus. 



Thynnus annulatus, Kirby, Trans. Linn. Soc. xii. 476. 29 S . 



Guer. Voy. Coq. Zool. ii. 228. 



Kluy, Berl. Abhandl. (1842) 17. 5. 

 Thvnnus australis, Boisd. Voy. de VAstr. Zool. 655. pi. 12. f. 2. 



&uer. Voy. Coq. Zool. ii. 228. 



Hab. Australia (Port Jackson). 



9. Thynnus australis. B.M. 



Mvrmecodes AustraUs, Gray, Cuv. Anim. Kingd. (Griff.) (nee 



'Boisd.) XV. 516. pi. 71. f. 3$. 

 Thynnus Grayii, Guer. Voy. Coq. Zool. ii. 231. 

 Thynnus Australis, Klu(/, Berl. Abhandl. (1842) 18. 6. 

 Thynnus Brownii, Westw. Arc. Ent. ii. 1 13. pi. 76. f . 1 c? . 



Hab. Australia (King George's Sound). 



10. Thynnus Wallisii. B.M. 



Male. Length 12-13 lines. — The head, antennje, thorax, 

 femora, and base of the abdomen black ; the mandibles, clypeus, 

 the anterior margins of the face and lower orbits of the eyes 

 yellow; tips of the mandibles rufo-piceous ; the posterior mar- 

 gin of the prothorax and the tegulae yellow ; the tibise and 

 tarsi reddish yellow or pale ferruginous. The head and thorax 

 densely covered with griseous pubescence, that on the disk of 

 the latter yellowish ; the legs have a short thick griseous pubes- 

 cence ; the wings flavo-hyaline, the nervures fusco-ferruginous. 

 Abdomen reddish yellow, each segment with a faint ferruginous 

 transverse line, which is straight in the middle, then curves 

 abruptly downwards, the line being widened at the lower part of 

 the curve; the curved line then runs upwards as high as the 

 transverse line, and from thence curves off to the outer margins; 

 above the outer curve there is an indistinct ferruginous dot ; the 

 apical segment is punctured at the base, and has curved striae at 

 the apex ; the lower ventral plate is triangular, the lateral angles 

 subdentate, the apical one with a blunt spine. 



Female. Length 10 lines. — Head ferruginous, with a trans- 

 verse yellow stripe on the front, between the eyes ; the thorax 

 and coxae black ; femora, tibiae, and tarsi ferruginous, the two 

 latter densely spinose. Abdomen yellow above, black at the base 

 and beneath ; each segment with a similar curved line as in the 



