500 Mr. T. D. A. Cockerell — Descriptions and 



apical bristles ; hyaline area well developed, about 85 fx 

 broad in middle ; maxillary palpi 6-jointed, the joints sub- 

 equal, measuring in fi: (1) 187, (2) 187, (3) 204, (4) 204, 



(5) 204, (6) 221, the last two slender ; tongue about 748 a 

 long, dagger-shaped, slender, the apical part linear, but 

 appearing broad because of the very abundant long branched 

 hairs; paraglossse small, oval, very hairy; labial palpi 

 4-jointed, the first two joints stout, the third medium, the 

 fourth slender ; joints in /u : (1) 170, (2) 136, (3) 136, 

 (4) 136. 



Bab. Cairns, Queensland (Turner). Females labelled 

 Kur. 1. 02 ; 2. 02 ; 3. 02 : males Kur. 12. 01 ; 1. 02 ; 4. 02. 

 Kur. is presumably Kuranda. 



Palaiorhizaflavomellea, sp. n. 



5 . — Length about 7 mm. 



Looking like a small P. melanura, with the same colour 

 and pattern, but the area of metathorax shining, not fluted ; 

 the clypeus without dark bars (sometimes a ferruginous spot 

 at each upper corner) ; the median black band of scutellum 

 continued on postscutellum, and projected as a ferruginous 

 mark (pointed at end) on metathorax. 



J. — Similar; length about 6|mm. ; face strongly con- 

 stricted below. 



The mouth-parts of this species show the following cha- 

 racters : — 



Structure as in P. melanura ; tongue very broad at base, 

 rapidly narrowing to the linear apical part, with the usual 

 long hair ; on each side is a separable tuft of hairs arising 

 from near the base. Hairs at end of maxillary blade strongly 

 plumose (in melanura they are quite simple). 



Tongue 375 /u, long; palpal joints measuring in jx • 

 maxillary palpi (1) 85, (2) 153, (3) 153, (4) 153, (5) 170, 



(6) 204; labial palpi (1) 102, (2) 85, (3) 102, (4) 110. A 

 curious comb of short erect bristles runs along inner side of 

 first two joints of maxillary palpi, and is not interrupted at 

 the suture. The same comb is found in P. melanura. 



Bab. Cairns, Queensland (Turner), 4 ? , 2 £ . The males 

 are labelled Kur. 12. 01 : the females Kur. 12. 01 ; 3. 02 ; 

 5. 02. British Museum. 



Paloeorhiza basilura, sp. n. 



5 . — Length about 8 mm. 



Looking like a rather small P. melanura, with the same 

 colour and pattern, except as follows: — The shorter and 



