168 REVISION OF THE THYNNIDjE OP AUSTRALIA, II., 



104. T. (Agriomyia) taeniolatus Froggatt. 



Thynnus taeniolatus Frogg., Trans. Roy. Soc. S. Austr. xvi.p.71 

 1893(<J). 



Hab. — Central Australia (Elder Expedition). 



I have not seen this species, and cannot assign it to this genus 

 with any certainty. 



Subgenus Catocheilus Guer. 



Catocheilus Guer., Mag. de Zool. xii. p. 8, 1842. 



<£. Sixth joint of maxillary palpi rudimentary ; labrum 

 narrowed posteriorly; abdomen somewhat flattened, the segments 

 moderately constricted. Second recurrent nervure received near 

 base of third cubital cell. 



£. Fifth ventral segment of abdomen longitudinally striated, 

 pygidium broad and truncate. 



Type, Catocheilus klugii Guer. 



105. T. (Catocheilus) klugii Guer. 



Catocheilus klugii Guer., Mag. deZool. xii. p.8, P.10'2, figs.1-14, 

 1842(29). 



Thynnus diversus Sm., Cat. Hym. B.M. vii. p. 41, n.110, 1859. 

 Thynnus per plexus Sm., Descr.n.sp. Hym. p. 164, n. 17, 1879(^0). 

 This species is well figured by Guerin. 

 Hab. — Swan River. 



Subgenus Lophocheilus Guer. 



Lophocheilus Guer., Mag. de Zool. xii. p. 11, 1842. 



Myrmecodes Ashm., Canad. Ent. xxxv. 1903(nec Latr.). 



Hemithynnus Ashm., I.e. 



£. Labrum narrowed posteriorly; abdomen not flattened, or if 

 at all flattened the segments strongly constricted. Second 

 recurrent nervure received at some distance from base of third 

 cubital cell. 



9. Pygidium truncate posteriorly, not contracted on or before 

 the truncation; fifth ventral segment rugose or striated. 



Type L. v'dlosus GueV. 



