144 Mr. R. E. Turner on some new or 



second abdominal segments, a band near tlie apex of tlie 

 third and fourth, almost interrupted in the middle on the 

 third and broadly interrupted on the fourth, the apex of 

 the first ventral segment and a large spot on each side of 

 segments 2-4 yellow; antennaipiceous; legs fusco-ferruginous 

 beneath. 



Length 18 mm. 



Ilab. Richmond, N.S.W. {Froggatt). 



Type in coll. Froggatt. 



This is the female of a species belonging to the section 

 Zaspilothgnniis, Ashm., but the head is not deeply grooved 

 as in leachiellus, Westw., which Ashmead takes for the type 

 of his genus. But other species in which the male does not 

 seem to differ in structure from leachiellus (notably T. vernali's, 

 Turn.) have the head of the female without grooves, so that 

 I cannot regard this character as of more than specific 

 importance. 



In my key to the species of Thgnnus (Proc. Linn. Soc. 

 N.S.W. xxxiii. p. 84, 1908) I have placed T. seductor, Sm., 

 among the species without a spine at the apical angles of the 

 sixth ventral segment. This is an error, for the spine 

 although short and blunt is distinctly visible. On the other 

 hand, T. anchorites, Turn., has been placed, by an oversight 

 on my part, among the species in which the spine is present, 

 whereas there is no trace of a spine. 



Thijnnus sabulosuSj Turn. 



Thynnua sahulosus, Turn. Proc. Linn. Soc. N.S.W. xxxiii. p. 208 

 (1908), $. 



This will probably prove to be the female of T. zonntus, 

 Guer. {nigropectus, Sm.), whicii is a wide-ranging species, 

 the localities for specimens in the British Museum being 

 Swan River, Roeburne, N.AV.A., and Alexandria, near the 

 eastern border of the Northern Territory. Though the head 

 of 2\ sabulosus is not deeply grooved as in most species 

 allied to T. dentatus, Fab., it certainly belongs to that 

 group. 



Thynnus picticolUs, Turn. 



Thyniius picticollis, Turn. Proc. Linn. Soc. N.S.W. xxxiii. p. 21G 

 (1908), $. 



This belongs to the group Zaspilothynnus^ Ashm,, and 

 may prove to be the female of T. ochrocephalus, Sm. The 

 first joint of the intermediate tarsi is very strongly flattened 

 and broadened, and the intermediate tibi* are also broader 



