238 REVISION OF THE THYNNID^ OF AUSTRALIA, I., 



gular, pointed at the apex. Black; the two apical abdominal seg- 

 ments red. Wings hyaline, nerviires fuscous. Length 12-15mm. 



9. Unknown. 



Hah. — Melbourne, Vic. (French). 



R. COMPARATUS Sm. 



ma^/>a8^«r6'0/?2p«m^wjjSm.,Cat.Hym.B.M.vii.p.69,1859((J9). 



Rhagigaster ragosus Sm., Descr. n.sp. Hym. p. 176, 1879 ((Jnec$). 



(^. The clypeus is carinated at the base, the head and thorax 

 very coarsely rugose, the prothorax and median segment more 

 finely so. The median segment is rounded at the apex. Abdo- 

 minal segments very finely rugulose, smooth at the base. The 

 tibi« and tarsi and two apical abdominal segments ferruginous- 

 red. Length 10 mm. 



O. The head is rectangular, longer than broad; head and thorax 

 punctured, the punctures elongate and confluent; the prothorax 

 almost square, shorter than the median segment, which is 

 broadened to the apex and obliquely truncate, the whole abdomen 

 longitudinally rugulose, the pygidium simple, rounded at the 

 apex. Antennae, legs, and tw^o apical abdominal segments 

 ferruginous. Length 7 mm, 



Hab. — Adelaide, S.A ; Melbourne, Vic. 



Much more coarsely sculptured than in the allied species, and 

 may also be distinguished by the colour of the legs in the male. 



The female described by Smith as that of rugosus is almost 

 certainly wrongly paired by the collector, and does not belong to 

 this section of the family. 



R. PiNGUicuLUS, n.sp. 



(J. Clypeus with a median carina from the base to the centre, 

 where it is vvidely branched, the apex narrowly emarginate. The 

 carina between the antenna faint and broadly rounded. Front 

 rugose, occiput strongly punctured. Thorax and median segment 

 at the base coarsely rugose, the median segment short and verti- 

 cally truncate, the surface of the truncation finely reticulated. 

 Abdomen densely punctured, the apical margins of the segments 



