62 HYMENOPTEKA. 



9. RHAGIGASTER H^EMORRHOIDALIS. B.M. 



Rhagigaster hsemorrhoidalis, Guer. Mag. Zool. (1842) 2 $ . 

 Hob. Australia (Swan River). 



10. RHAGIGASTER DIMIDIATUS. 



Male. Length 9 lines. Head, antennae, thorax, anterior legs, 

 and the intermediate and posterior coxae, black ; the intermediate 

 and posterior tibiae, tarsi, and femora, and also the abdomen, 

 ferruginous ; the head and thorax with a thin cinereous pubes- 

 cence ; the wings fusco-hyaline ; the disk of the thorax trans- 

 versely rugose ; the abdomen with scattered shallow punctures ; 

 a transverse line on each segment a little before its apical margin, 

 the intervening space very closely punctured ; the terminal seg- 

 ment rounded at the apex and coarsely longitudinally rugose. 



Female. Length 5 lines. Black, elongate, with the inter- 

 mediate and posterior legs, the anterior tarsi, and the two apical 

 segments of the abdomen, ferruginous ; the head, thorax, and 

 basal segment of the abdomen with deep punctures, the second 

 segment transversely and finely striated, the apical segment lon- 

 gitudinally striated. 



Hob. Australia (Sydney). 



1). RHAGIGASTER OBTUSUS. 



Male. Length 8 lines. Black, slightly shining, and thinly 

 covered with griseous pubescence ; head roughly punctured, the 

 clypeus widely emarginate. Thorax roughly punctured; the 

 prothorax with elongate transverse punctures, the anterior margin 

 reflexed; the metathorax truncated, the truncation hollowed 

 out on each side and transversely rugose ; the disk very coarsely 

 punctured ; the wings subhyaline, the nervures black. Abdomen 

 elongate, subcylindrical, strongly punctured ; each segment has 

 an impressed transverse line a little before the apical margin, 

 the space between which and the margin is more finely and 

 much more closely punctured ; each segment wdth an oblique, 

 smooth, shining elevation on each side; the apical segment 

 rounded at the apex and longitudinally coarsely rugose. 



Hob. Adelaide. 



12. RHAGIGASTER REFLEXUS. 



Male. Length 7 lines. Black: the head and thorax with 

 confluent punctures ; head produced behind the eyes, rounded 

 behind. Thorax oblong-quadrate, the sides before the wings 

 parallel, the metathorax truncate ; the disk of the thorax coarsely 

 rugose; the anterior margin reflexed, produced laterally, and 



