17 



so that the elytra appear to be of three colours : a rather dingy flavous-red or 

 ferruginous, piceous, and black or brown. The type female is of this form. 



Form 3. The typical form of both brevicoUis and queenslandicus, but a 

 rather rare one. 



There are many other forms before me, represented by but one or two 

 specimens, but they may be all recognized by the comparatively short prothorax, 

 and small subgranular elevations on elytra. 



DiBELONETES MJOEBERGI, Bcmh. 



A somewhat variable species. The W on the elytra is usually sharply 

 defined, but on three specimens is so faint as to be scarcely traceable ; the 

 infuscation of the sides of the prothorax is occasionally pronounced, but is 

 usually feeble, or altogether absent. I took fifteen specimens in the Cairns 

 district, and one near Adelaide. 



DiBELONETES PALAEOTROPicus, Bernh. 

 I have not seen the description of this species,"^^") but received from the 

 Stockholm Museum two specimens taken by Mjoberg at Malanda and identified 

 by Bernhauer. The species is a variable one, but may be recognized amongst 

 the allies of Astenus by its greatly flattened and long head and prothorax, the 

 head with a median line (infuscated or black), and the prothorax with a median 

 line and a marginal one on each side (also infuscated or black). The elytra 

 and abdomen have markings which vary in number and intensity. On two 

 specimens the markings on the whole of the upper-surface are, however, very 

 faint. Specimens under examination are from Cairns, Kuranda, and Melville 

 Island. 



Astenus, Steph., Cat., p. 213. 



(Sunius, Er., a synonym, and Astenogndthus, Reitt., a subgenus.) 



APiciFLAvus, Lea (Stenus). N.S.W. 



AUSTRALicus, Bernh. W.A. 



CYLiNDRicus. Macl. (Steuus). Q., 

 N.S.W.; v., W.A. 

 var. australasiae, Fvl. 



FAVOSUS, Lea (Stenus). Q. 



GUTTULUS, Fvl. (Stenus). Q., 

 N.S.W., v., Tas., S.A., W.A., 

 Lord Howe and Norfolk Islands. 



hackeri. Lea (Stenus). Q. 



iNDicus, Kr. (Subg. Astenognathus). 

 Q., N.S.W., v., Tas., S.A., 

 W.A. (also Europe, Africa, and 

 Asia). 

 aequalis, Blackb. (Sunius). 

 oculatus, Sharp (Sunius). 

 pallidulus, Woll. 

 parviceps, Ragusa. 

 pectinatus, Fvl. (Sunius). N.S.W. 

 ROTUNDicoLLis, Macl. (Scopaeus), 



Cat., p. 25L O. 

 siMSONi, Lea (Sunius). . Tas. 

 TRiLiNEATus, Lea (Sunius). N.S.W. 



AsTENus AUSTRALicus, Bernh. 

 Mr. J. Clark took two specimens of this species on the Swan River, from 

 a nest of Ectatomma metallicmn; they measure 3.5 and 3.75 mm. 



AsTENUS GUTTULUS, Fvl. 



Two specimens from Cairns, and one from Darwin, possibly belong to this 

 species, but they differ from typical ones in being somewhat thinner (the pro- 

 thorax is distinctly, but slightly longer) and the spot on each elytron more 

 elongate, and extending from just before the middle to about one-sixth from 



(!') It is not mentioned in the Catalogue, but is recorded in Arkiv for Zool., xiii. (No. 

 8), p. 11. 



