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maxillary palpi are longer, the terminal joint much more elon- 

 gate. The ocelli are more nearly in the position of the angles 

 of an equilateral triangle, the posterior ones being well-separat- 

 ed from one another, but not much distant from the eye-mar- 

 gins. In the wings the marginal vein is rather longer. The 

 mandibles do not differ much from those of Echthrodryinus, nor 

 can the antennae be considered to present generic distinctions. 

 Plate XIX, fvg. 2. 



Echthrohaccha injuriosa sp nov. 



Head black, faintly metallic, with evident large, but shallow,' 

 punctures scattered over the front^ and most numerous about 

 the ocelli ; funicle joints of antennae increasing slightly and 

 gradually in width from the second to the sixth. Mesonotum 

 quite shining in some aspects, finely but distinctly punctured, 

 and clothed with short dark hairs, its colour black with greenish 

 metallic tint. Scutellum dark at base, and finely punctured ; it 

 is clothed with short hairs, and in addition bears a few erect, 

 long ones, the apical portion is in certain aspects shining and 

 brilliant metallic green in colour. Mesopleura black wit'h pur- 

 plish lustre. Wings hyaline and for the most part uniformly 

 clothed with very s'hort dar'k hairs; a wedge-shaped, transverse- 

 ly-oblique, hairless line does not reach the marginal vein. Ab- 

 domen triangular, with purplish metallic lustre. Antennae sor- 

 didly yellowish, the club generally entirely dark. xA.ll the tibiae 

 and tarsi yellow, the front and hind femora generally largely 

 black or dark. Length 1.25 mm. 



HAB: Cairns, Queensland; parasitic on Baccha. 



Ectop'wgnatha, gen. nov. 



Head moderate, lower part of face much inflexed, frontal 

 space between the eyes moderately wide, probably about as 

 wide as one of these organs, the collapsed state of which renders 

 exact measurements uncertain. Short pale hairs are present on 

 the eyes, but are difificult to see owing to the condition of these 

 being as above stated. The front has a dense microscopic 

 sculpture and more or less evident traces of faint sparse punc- 

 tures. Ocelli apparently in a subequilateral triangle, the pos- 

 terior near to, but not touching, the eye-margins. Mandibles 

 broad, with two distinct but minute teeth, and two inner angu- 

 lations (or still more minute teeth?), the maxillary palpi very 



