152 REVISION OF THE THYNNIDJ3 OF AUSTRALIA, II., 



slightly raised. Black ; antennae, mesonotum, base of first 

 abdominal segment, carinse on second, the two apical segments 

 and legs ferruginous-brown; apical margins and sides of abdominal 

 segments testaceous. Length 5 mm. 



Hob. — Liverpool, N. S.W. (Froggatt; <££ in cop.). 



Types in Coll. Froggatt. 



A variety of the male has the whole abdomen except the basal 

 segments ferruginous. Allied to T. decipiens Westw., but differs 

 in many details both of shape and sculpture. 



80. T. (Aeolothynnus) armiger, n.sp. 



(J. Clypeus short and broad, narrowly produced and truncate 

 at apex, closely punctured. Head very closely punctured on 

 front, shallowly and more sparsely on vertex. Thorax and 

 median segment finely and closely punctured; anterior margin of 

 the pronotum straight and only slightly raised, rather narrower 

 than head; median segment rounded, with an indistinct longi- 

 tudinal sulcus from base. Abdomen elongate, shining and 

 shallowly punctured, the segments strongly constricted at base, 

 the apical margin very narrowly depressed, most broadly in 

 middle, leaving the raised portion of the segments narrowly 

 emarginate. Ventral plate of segments 3-5 prominent at apical 

 angles; sixth ventral segment with a spine on each side at apical 

 angles. Epipygium narrowly rounded at apex; hypopygium 

 ending in three acute spines, the central spine the longest. 

 Black; a narrow line on anterior margin of pronotum interrupted 

 in middle, and a transverse line on postscutellum creamy-white; 

 calcaria of tibia3 whitish. Wings hyaline, iridescent, nervures 

 fuscous. Length 9 mm. 



9. Head as broad anteriorly as long, much narrowed posteriorly, 

 shining, with a few scattered punctures, a short sulcus on front 

 between antenna?, clypeus with a strong carina. Pronotum 

 much broader than long, convex, the anterior portion subcarinate, 

 the centre subtuberculate, sparsely punctured. Median segment 

 short, obliquely truncate posteriorly, more closely punctured. 

 Abdomen broader than thorax, strongly pubescent on sides; first 



