BY FREDERICK A. A. SKUSE. 



265 



pale ochreoiis-yeilow ; metanotum dark brown. Halteres yellow. 

 Abdomen scarcely twice the length of thorax, sordid brown, dull, 

 more or less tinged with ochreous, sparingly clothed with yellowish 

 hairs; lamellae of ovipositor ochre-yellow. Legs more or less 

 ochreoiis-brown, trochanters and bases of femora yellowish. In 

 fore legs tibia twice the length of metatarsus. Wings longer than 

 eutire bodj, very angular at base, semi-diaphanous, having the 

 appearance of ground glass, without iridescence ; costal, first and 

 third longitudinal, and basal half of fourth longitudinal veins pale 

 brownish. Costal and third longitudinal veins meeting much 

 before apex of wing, considerably nearer to it than to tip of anterior 

 branch of fifth longitudinal fork ; auxiliary vein extremely indis- 

 tinct, apparently joining costa somewhat beyond middle cross-vein; 

 second longitudinal vein indistinguishable or altogether wanting ; 

 first and third longitudinal veins enormously thickened beyond 

 middle cross-vein, third longitudinal attenuating towards tip ; 

 fourth longitudinal very pale, directed posteriorly, not reaching 

 margin, terminating considerably below apex of wing and much 

 nearer to tip of anterior branch of fifth longitudinal tlian to that 

 of third longitudinal ; base of fifth longitudinal fork lying much 

 beyond middle cross-vein, its posterior branch more than J the 

 length of anterior branch. 



Hah. — Rodd Island, Port Jackson (Skuse). August. 



Ohs. — Possibly a marine species. It is very likely that some 

 small insects seen by me in great numbers flying about the sea- 

 weed and damp rocks on another island at low water also belong 

 to this species. 



256. Camptocladius invenustulus, sp.n. (PL xii., fig. 18). 



^. — Length of antennae 0-010 inch ... 0-25 millimetre. 



Expanse of wings 0-045 x 0-013 ... M3 x 0-32 



Size of body 0-042x0-008 ... 1-06x0-20 



Antennae entirely ochreous-yellow or brownish-ochreous. Head 

 dark brown. Face, clypeus and palpi ochreous-brown. Thorax 



