176 THTNNIDJ3. 



cence, the nervures black. Head closely and strongly punctured, 

 except the hinder portion of the vertex, which has distant punc- 

 tures ; a transverse carina in front of the ocelli ; the mandibles 

 black, with the extreme apex ferruginous ; the face, below the 

 antennae, with white pubescence. Thorax with strong but distant 

 punctures ; the anterior margin of the prothorax raised and acute, 

 the sides of the prothorax somewhat rounded to the wings. Abdo- 

 men with the segments constricted, sparingly punctured ; beneath, 

 the base of the segments closely punctured, their apical half with 

 stronger but distant punctures. 



Hah. Queensland. 



3. Rhagigaster rugosus. 



Male. Length 5 lines. — Black ; the head and thorax rugose ; the 

 tibiae, tarsi, and two apical segments of the abdomen ferruginous. 

 The head and thorax with thin hoary pubescence ; wings hyaline, 

 the nervures black. Abdomen closely punctured and shining ; the 

 recurved spine black. 



Female. Length 2| lines. — Black ; the antennae pale ferruginous ; 

 the mandibles and tarsi ferruginous, the tibiae obscurely so ; the 

 prothorax ferruginous, the meso- and metathorax obscurely so ; 

 the second segment of the abdomen bright ferruginous and deeply 

 transversely grooved ; the extreme apex ferruginous. 



Rah. Adelaide. 



This species is closely allied to R. hcemorrJioidalis of Guerin, but 

 is distinguished from it by its smaller size and by the colour of its 



4. Rhagigaster laevigatas. 



Male. Length 10 lines. — Black, shining, thorax impunctate ; wings 

 dark brown-black, lightest towards their apical margins. The face 

 with a few scattered fine punctures, the vertex impunctate ; the 

 face on each side of the clypeus with cinereous pubescence. The 

 scutellum prominent. The abdomen smooth and shining ; the 

 margins of the segments depressed ; the depression at the apex of 

 the third, fourth, and fifth segments finely punctured. 



Female. Length 7| lines. — Ferruginous, the abdomen, legs, and 

 antennae obscurely so ; the head subquadrate, and, as well as the 

 thorax above, with strong oblong punctures ; the apical margins 

 of the segments with a row of punctures ; the apical segment with 

 oblong punctures. 



Hah. N.W. coast of Australia, Champion Bay. 



