258 KEVISIOX OF THE THVNNID.E OF AUSTRALIA, I., 



base. Chestnut-brown, stained with black on the median segment) 

 and on the abdominal segments above. Length 4 mm. 

 Hah. — Victoria (French;. Types in Coll. Froggatt. 



Subgenus Eiroxe Westw. 



Eirone Westw., Arc. Ent. ii. 2, 144, 1844. 



(J. Very near AeJurus Klug, from which it differs in the joints 

 of the maxillary palpi, the three apical joints in Eirone being 

 only a little more than half as long again as the three basal 

 joints. 



9. Head rectangular; maxillae small, with four-jointed maxillary 

 palpi; labial palpi four-jointed. Abdomen C3dindrical or sub- 

 cylindrical. Tarsal ungues simple. 



In E. chspar, the typical species, the mandibles of the female 

 are bidentate, but this is not usually the case. 



The differences between this and Aeluriis are, in my opinion, 

 too slight to merit full generic rank. Ashmead (Canad. Ent.xxxv.) 

 mentions Eirone among genera of which the female only is known, 

 and suggests that Lophocheilus Guer., may be the male. He 

 cannot have looked at Westwood's description and figures, which 

 are very good and clear; but has probably been misled by an 

 error of Saussure's. 



Type E. dispar Westw. 



Kty to the Species of Eirone. 



S' 3' i- Clypeus with a triangular truncation at the apex. 



A. Head very large, produced behind the eyes. 



a. Median segment short, truncate. 



a'2. Anterior margin of prothorax yellow, legs testaceous. 



Length 6-8 mm. E. crassiceps, n.sp. 



B. Head not so large. 



a2. Antennae and legs yellow. Length 10 mm. E. lacidu/a, n.sp. 



&2. Legs only yellow. Length 10 mm. E. lucida Sm. 



c2. Antennte, legs, prothorax and scutellum yellow. Length 



5-7 mm. E. sctUellata, n.sp. 



b. Median segment rounded. 



a2. Legs and antennse ferruginous. Length 1 1 mm. 



E. rujicornis k>m. 

 ii2, Antennte only ferruginous. Length 7 mm. E. Jul vicostalis, n.sp. 



