BY WALTER W. FROGGATT. 155 



The galls are round or oval, fleshy, about the size of a large 

 filbert nut, containing several cavities in each gall. When they 

 are ripe, about the end of October, they are brightly tinted with 

 red and yellow, and are known in Victoria as " Wattle apples " 

 by the children. They are formed on the flower stalk, as are also 

 certain dipterous galls, and are very plentiful on the Acacias 

 growing back from Rose Bay. Unless taken quite ripe, they are 

 difficult to keep, as the galls decay, and the larvae die in 

 consequence. 



Locality : Rose Bay, Botany, ifec. 



Cynips maideni, n.sp. 



Length of body, 2 lines. Expanse of wings, 4 lines. 



(J. Head, thorax, abdomen, coxaa and base of femora black ; 

 the rest of the femora, tibiae, and tarsi pale yellow in live speci- 

 mens, darker in old ones. 



^. Differs in being slightly larger, with the abdomen broader, 

 and from below the first segment of a rich yellow slightly margined 

 with black on the sides. 



Antennae 13-jointed, ochreous-yellow, clothed with fine hairs ; 

 1st joint cylindrical ; 2nd cup-shaped ; 3-4th, very small, funnel- 

 shaped ; 5-1 0th cylindrical, broad, rounded at base, and straight 

 across at apex ; in the female these joints are smaller and more 

 subovate ; 11-1 3th forming an oval-shaped club ; in the male the 

 5th joint is much larger than the following ones. Eyes vermilion 

 when alive, ocelli bright hyaline ; head round in front, square 

 behind. Thorax broad, shining, very rugose, tlie corrugations 

 running in wavy lines; middle lobe of mesothorax large; scutellum 

 large, shield-shaped. Legs covered with fine hairs. 



I have much pleasure in dedicating this fine species to J. H- 

 Maiden, Esq., F.L.S., Curator of the Technological Museum, to 

 whom I am indebted for many specimens, and whose work among 

 our wattles is well known. This Cynips causes the small twigs 

 and branches of Acacia longifolia to swell into thick fleshy galls, 

 often several inches in circumference, and five or six inches long. 



