225 



as the beak, with few fine hairs, more numerous on tarsi, 

 especially near apex. Length, 1*6 mm. 



Hob. — Victoria: Lai Lai, with Polytachis hexacantha. 

 Tasmania : Chudleigh, with Iridomyrmex . 



ERYTHRAELDAE. 



Fessonia prominens, n. sp. 

 PL xxiii., fig. 5. 



Body twice as long as broad, broadest in front; cephalo- 

 thorax with a prominent, median process, and each side with 

 two concavities; opposite the second one are the large, sessile 

 eyes, two each side, close together, and behind them on the 

 median line is a pair of pits or sensillae, each with a hair, 

 but I cannot see a crista or groove. Legs slender, of even 

 thickness throughout ; legs 1 and 4 about as long as body, the 

 tarsi a little shorter than the preceding joint, but not swollen. 

 Body clothed above and below 'with short, cone-like hairs, 

 each with small spicules in transverse rows ; there are several 

 patches on the dorsum free of hairs, three such spaces on the 

 cephalothorax, and a row of four each side on the abdomen. 

 The legs have similar but more elongate hairs, while the tarsi 

 have still more slender hairs, almost bristly. Length, 1 mm. 



Hab. — Victoria: Ocean Grove, with Iridomyrmex niti- 

 dus (Lea collection). 



Rhyncholophus attolus, n. sp. 

 PL xxiii., fig. 6. 



Similar in most respects to R. retentus, body of same 

 shape ; small, triangular cephalothorax is lower than 

 abdomen, crista enlarged at posterior end, one eye each side, 

 palpi rather long. The body is clothed with short hairy 

 bristles, not clavate as in R. retentus: the legs are a little 

 longer, leg 1 longer than body, 4 much longer than body, 

 2 and 3 about as long as body. In leg 1 the tarsus is as 

 long as penultimate joint, and this latter scarcely any longer 

 than the one before it (in R. retentus it is much longer). In 

 hind legs the joints are all more slender than in R. retentus, 

 the tarsus being scarcely three-fourths as long as the pre- 

 ceding joint, not at all enlarged toward tip, and plainly 

 longer than tarsus 1. Length, 1'2 mm. 



Hah. — New South Wales: Sydney, with Ron era lutea. 



Rhyncholophus reten-tus, n. sp. 

 PL xxiii., figs. 2 and 3. 

 Body about one and one-half times as long as broad, 

 sides nearly parallel, only little narrower behind. Dorsum 



i 



