276 Transactions. — Zoology. 



the origin of the third longitudinal vein ; anterior branch 

 of second longitudinal short, joining the costa a little be- 

 yond the apex of the first longitudinal ; costal vein extending 

 some distance beyond the apex of second longitudinal, but 

 not quite reaching the apex of the wing ; posterior brtinch of 

 third longitudinal and subsequent veins do not quite reach 

 the margin ; sixth longitudinal terminating some distance be- 

 fore the margin. Surface of wing microscopically haired. 



I have only two specimens of this insect, one of which was 

 reared by Dr. Dendy from larvae, and the other by myself. 

 The larvae are found beneath logs, and apparently live on the 

 small mould fungi that grow in such localities. The insect is 

 closely allied to Ceroplatios mastersi (Skuse) of New South 

 Wales. The larvae from which my specimens were bred were 

 found by Dr. Dendy in Alford Forest. Unlike the larvae of 

 C. mastersi, those of the present species are certainly not lumi- 

 nous. The form of the larvse is totally different from that of 

 the diagram given in Theobald's " British Flies," vol. i., page 96. 



Geroplatus hudsoni, sp. nov. 



Length of antennae, 0-056; size of body, 0-168x0 022; 

 expanse of wing, 0-143x0-049. 



Antennae about as long as head, and thorax very similar 

 to those of C. dendyi. Thorax, scutellum, and pleurae black, 

 the two former covered with stiff black hairs. Halteres with 

 a stout pedicel bearing a black pubescent knob. Abdomen 

 black, the posterior portion of each segment being dark-grey ; 

 abdomen covered with stiff black hairs. Legs rather long ; 

 coxae black, hairy towards the extremity ; femora with the 

 two extremities black but light-yellow in the central portion, 

 covered all over with short black hairs ; tibiae and tarsi 

 straw-coloured, clothed with short stiff black hairs. Wing 

 slightly smoky ; an indistinct patch of dark colour near the 

 apex, which disappears at the anterior branch of the third 

 longitudinal, and does not extend further from the apex than 

 the fork of the second longitudinal ; another patch extending 

 from the junction between second and third longitudinals 

 nearly to the former patch ; botli patches much lighter than 

 in G. dendyi. First longitudinal very close to margin of the 

 wing ; veins brown, not black as in G. dendyi. 



I have only one specimen of this insect, taken by Mr. G. V. 

 Hudson in the neighbourhood of Wellington. It closely 

 resembles G. dendyi, but can be distinguished by its smaller 

 size, darker colour, narrower and lighter wings, and the colour 

 of the coxae. 



Cero2)lattcs leiicoceras, sp. nov. Plate XIII. , fig. 3. 



Length of antennae, 0044; size of body, 0-170 X 0-022; 

 expanse of wing, 0-110 x 0-044. 



