176 REVISION OF THE THYNNID^S OF AUSTRALIA, II., 



longitudinally striated. Black; mandibles, antennae, legs and 

 apical margin of second abdominal segment and of pygidium 

 piceous. Length 8-9 mm. 



Hah. — Cairns, Q.(Turner; <JQ in cop.). 



115. T. (LOPHOCHEILUS) PURPUREIPENNIS Westw. 



Thynnus purpureipennis W estw., Arc. Ent. ii. 2, p. 143, P.83, 

 fig.10, 1844(3). 



Thynnus maurus Sm., Cat. Hyra. B.M. vii. p.37, n.96, 1859(3). 



rj- Clypeus convex in middle, advanced and rather narrowly 

 truncate at apex, rugulose. Head finely punctured, very sparsely 

 on vertex, with a longitudinal frontal sulcus from anterior ocellus. 

 Abdomen elongate, first ventral segment with a broad, triangular 

 truncation at apex; sixth ventral segment with a spine on each 

 side at apical angles. Hypopygium with basal angles prominent; 

 triangular, with a short apical spine. Wings dark fuscous, 

 flushed with purple. 



Q. Head nearly twice as broad as long, strongly rounded pos- 

 teriorly, shining, smooth on vertex, finely punctured on front, 

 position of ocelli marked by deep punctures. Pronotum finely 

 and sparsely punctured, narrower than head, slightly narrowed 

 posteriorly, about half as broad again as long; the anterior 

 margin almost straight, with a few large punctures. Median 

 segment short, obliquely truncate posteriorly, finely rugulose. 

 Abdomen shining, segments smooth at base, sparsely punctured 

 at apex; first segment vertically truncate anteriorly, rugose, the 

 apical margin raised, with a transverse groove before it. Second 

 segment with nine transverse carina?, including the recurved 

 apical margin, those at base a little lower and often concealed by 

 the first segment. Fifth ventral segment coarsely rugose on apical 

 portion. Pygidium fairly broad, truncate posteriorly and longi- 

 tudinally striated, sides almost parallel; hypopygium slightly 

 broadened at apex by membranous processes. Black; mandibles 

 and antennae fuscous-ferruginous. Length 15 mm. 



Hab. — Sydney (Froggatt; (J 9 in cop.). 



