72 Ml', li. E. Turner on Fo^sorial Hymenoptera. 



sulcus reaching the anterior ocellus. Head and thorax 

 rather sparsely punctured ; mesopleurse very sparsely punc- 

 tured^ the sternal carina not Avell defined as in other species 

 oi ihe ciliaius ^vo\x\) ; the transverse groove at the base of 

 the scutellum I'oveolate, but narrow and ill defined in the 

 middle ; basal area of the median segment ver}' finely and 

 closely obliquely striated, divided by a deep longitudinal 

 sulcus, the sides of the segment coarsely punctured-rugose. 

 First abdominal segment short and not very strongly nar- 

 rowed to the base, ventral segments 4-6 with ciliae of long 

 fulvous hairs, seventh dorsal segment not very small, very 

 broadly rounded at the apex. Fore tarsi distinctly ciliated, 

 intermediate tibiae with two strong apical spines, hind tibise 

 spinose. Second abscissa of the radius very short, about 

 one-tenth of the length of the third ; first transverse cubital 

 nervure sharply bent outwards near the cubitus, emitting 

 from the bend a scar which reaches to the base of the stigma ; 

 both recurrent nervures received by the second cubital cell ; 

 cubitus of hind wing interstitial with the transverse median 

 nervure. 



Hab. Ankertell, W. Australia (Broivn). 



Type from South Australian Museum. 



In most points this fine species closely resembles ciUaius, 

 but differs in the position of the cubitus of the hind wing, 

 Avhich is interstitial ; in ciliatus and perkinsi, however, the 

 cubitus is much nearer to the transverse median nervure 

 than in bellicosus and other species of the group. Other 

 structural points distinguishing this species from ciliatus 

 are the lesser development of the sternal carina, the sculpture 

 of the enclosed area of the median segment, and the much 

 greater development of the second spine of the intermediate 

 tibiae. I have only seen the female of ciliatus in which both 

 of these spines are developed, but Handlirsch could only see 

 one well-developed spine in the male, and in several species 

 of the group the second spine is much reduced or almost 

 obsolete in the male. 



Arpactus chrysozonus, sp. n. 



$ . Nigra ; clypeo, scapo flagelloque articulo primo flavis ; pronoto 

 postice, callis humeralibus, tegulis, mesonoto angulis posticis, 

 Bcutello, postscutello macula magna transversa, segmento dorsali 

 primo dimidio apicali, tertio quartoque fascia lata apicali, seg- 

 mento sexto, femoribus apice, tibiis tarsisque aurantiacis ; alis 

 hyaliuis, area costali late infuscata, veuis nigris. 



Long. 13 mm. 



? . Eyes converging towards the clypeus, separated at 



