BY FREDERICK A. A. SKUSE. 87 1 



Hah. — King George's Sound (Masters). 



Obs. — I have found this species most abundant about Sydney 

 from August to November. There are more than one hundred 

 specimens before me for comparison. 



370. Gynoplistia Westwoodi, sp.n. (PI. xxiii. fig. 34). 



^. — Length of antennae 0*135 inch ... 3*42 millimetres. 



Expanse of wings 0-520 x O'UO ... 13-20 x 3-35 



Size of body 0-500x0-090 ... 12-70x2-27 



Head black, somewhat shining, with black hairs ; rostrum, 

 palpi, and antennae black, the first basal joint of latter sometimes 

 brownish; the antennae 18- or 19-jointed, the first 10 or 11 

 flagellar joints with short branches, decreasing in length from 

 seventh or eighth joint, the eleventh, when present, a mere tooth ; 

 fi.rst two branches directed outwards ; last six joints more or less 

 elliptical, the terminal one usually elongate. Thorax black, 

 shining ; pleurae and coxae with a greyish or greyish-yellow 

 bloom, the latter covering a brownish-fulvous spot mid-way 

 between origin of wings and collare. Halteres brownish, with a 

 black club. Abdomen reddish-fulvous, the first segment and last 

 three violaceous-black, also violaceous-black spots laterally on the 

 third to fifth segments ; ovipositor entirely reddish-fulvous, the 

 valves long, slightly curved. Coxae and tarsi black ; femora and 

 tibiae fulvous or reddish-fulvous, with a ring of black at the apex 

 (that on the former the broader). Wings with a slightly yellowish 

 tint, the basal portion fulvous, with three brown equidistant 

 spots or abbreviate fasciae, also the costal cell tinted with yellow 

 or very pale brownish, and the apex of wing (from inner end of 

 second posterior cell) ; fourth (except anterior branches) to 

 seventh longitudinal vein, and both ends of discal cell and great 

 cross-vein, more or less infuscated with brownish ; generally dis- 

 tinct cloud-streaks about middle of sixth and seventh longitudinal 

 veins ; first wing-spot filling basal portions of the two basal cells, 

 second squarish, filling portion of first basal cell at origin of 

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