BY FREDERICK A. A. SKUSE. 377 



434. DiPLOSIS FRENEL.«, Sp.n. (PI. XVI., fig. 2). 



9. — Length of antennae 0*025 inch ... 0*62 millimetre. 



Expanse of wings 0-065 x 0-026 ... 1-66x0-64 



Sizeof body 0080x0-013 ... 202x0-32 



Antennse pale greyish, joints sub-cylindrical, twice as long as 

 broad, with very short verticils. Front dark brown. Hypostoma 

 and palpi sordid-ochreous or brownish. Thorax dark brown, with 

 two longitudinal rows of yellow hairs, pleurae, collare, scutellum, 

 raetathorax and an oblong jjatch next to scutellum, between the 

 longitudinal I'ows of hairs, reddish-fulvous. Hal teres red, the 

 base of stem yellowish. Abdomen red, the terminal segment 

 more yellowish, with pale hairs. Legs rather short, yellowisli- 

 grey. Wings hyaline, covered with a yellowish or brownish-yellow 

 pubescence ; veins pale ; weak silvery reflections. Second longi- 

 tudinal vein reaching the margin at the tip of the wing ; cross- 

 vein indistinct ; third longitudinal vein very pale and indistinct, 

 straight before the fork, the anterior branch twice the length of 

 the posterior, slightly arcuated. (Description drawn from fresh 

 specimen). 



Hah. — Wagga Wagga district, N.S.W. (Skuse). Bred from 

 sub-globular, brown, smooth, valvate, fruit-like galls, about 5 mm. 

 in diatneter, consisting of three thin valves with a median carinated 

 line; found growing on the branchletsof the Desert pine [Frenela 

 Undlicheri), in November (PL xvi., fig. 2). Each capsule contains 

 only a single larva. It is not known whether the larva undergoes 

 its transformation within the gall, or drops to the ground on the 

 splitting of the valves ; the latter is probably the case. 



22. DiPLOsis CiECA, Sk. 

 D. ccHca, Sk., I.e., p. 76. 



Five old specimens recently found in the collection of the late Mr. 

 W. S. Macleay belong to this species, and are labelled '■^Cecidomyia 

 musGorum ; on dead insects, N.S.W." I know nothing of this 

 habit from personal observation. 



