208 I>ARAEITIC aVMENOPtERA, ill., 



by the length of the fifth antennal joint. Anterior ocellus 

 larger and paler than the others, and separated from them 

 by double the distance these are from each other. Pro- and 

 mesonotum, and scutellum closely covered with roundly 

 curved striae , those on the base of the pronotum stronger 

 and more widely separated than on the rest ; apex of scutel- 

 lum with a rounded projecting border. Metanotum smooth, 

 the centre with stout diverging striae, the outer longer than 

 the inner; the sides densely covered with silvery pubescence. 

 Abdomen shining, smooth ; the basal two segments larger than 

 the others ; not much longer than wide. The third and fifth 

 longer than wide, the sixth still longer, of equal width, tubu- 

 lar ; beyond it, is a much longer segment above and closely 

 pressed to the ovipositor, which is broad, of equal width, and 

 projects one-third of its length beyond it. There is a smooth 

 keel down the centre of the pronotum ; its apex becomes gradu- 

 ally widened from the middle. Scutellum obliquely narrowed 

 at the base, which is transverse, and one-fourth the width of 

 the broadly rounded apex. Mesopleurae above the furrow 

 closely, regularly reticulated, below vertically, more or less 

 obliquely striated, as are also the metapleurae, the basal (and 

 larger) part more strongly so. Parapsidal furrows distinct, 

 curved. The fore and ])osterior femora are thickened, the 

 anterior with a curved incision on the lower part of apex ; the 

 middle thinner and narrowed at the apex. There are some 

 longish, scattered, white, weak spines on the hind tibiae: the 

 tarsi have shorter and more numerous spines ; the shorter 

 spur of the hind tibiae is longer than the width of the apex of 

 tibial. 



Aressida nigricornis, sp.n. 



Length, 6 : terebra, 2 mm. 



Belmore, near Sydney, N.S.Wales (F. Taylor). 

 The difference between this species and .1 . an inilirnniiit may 

 be shown thus : — 



