HYMENOPTERA. 53 



180. THYNNUS (AGRIOMYIA) AMPLIPENNIS. 



Male. Length 9 lines. Shining black : head and thorax very 

 closely punctured, the metathorax very delicately punctured and 

 shining; the scutellum elevated into a tubercle; wings ample 

 and of a rich golden-fulvous colour, the nervures ferruginous. 

 Abdomen : the first segment much narrowed at the base, which 

 has a deep abbreviated channel ; the margins of the segment 

 slightly depressed, covered with short black pubescence, and with 

 a number of longer hairs at the tip; the head, sides of the 

 thorax, and the anterior and intermediate tibiae with long blaek 

 hairs. 



Hab. South America. (Coll. W. W. Saunders, Esq.) 



Genus 2. ^ELURUS. 



Agriomyia, pt., Guer. Mag. Zool. p. 5 (1842). 

 jElurus, King, EerL Abhandl. 42 (1840-42). 



Species of Australia. 



1. J^LURUS ABDOMINALIS. B.M. 



Agriomyia abdominalis, Guer. Mag. Zool. p. 5 (1842). 

 jElurus abdominalis, Wettw. Arc. Ent. ii. 122. pi. 77. f 5 $ . 

 Thynnus fervidus, Erichs. Wiegm. Arch. (1842) 263. 237 . 

 Westw. Arc. Ent. ii. 146. 



Hab. Tasmania. 



Of this species, which has the head and thorax black and the 

 abdomen red, I have seen a fine variety with the thorax also red, 

 having only a few dusky stains behind the scutellum, in the 

 Collection of R. Bakewell, Esq. 



2. ^ELURUS MCERENS, 



JSlurus moerens, Westw. Arc. Ent. ii. 124 <$ . 

 Hab. Australia (Melbourne). 



3. ^ELURUS SPINOL^. 



Agriomyia Spinolae, Gufr. Mag. Zool. (1842) p. 6. 

 Hab. Australia. 



4. JSLURUS INCANUS. B.M. 



Male. Length 7 lines. Black : the head and thorax with 

 strong confluent punctures, the metathorax more finely punc- 

 tured, shining, and with long cinereous pubescence, the cheeks 



