86 PROCEEDINGS OP THE ROYAL SOCIETY OP QUEENSLAND. 



parts grey. Anterior spiracle very small, clad with hairs which 

 have a pinky tinge. Of the anterior acrostichals, only the 

 posterior pair present ; of the posterior acrostichals only the 

 prescutellar occur and are rather well developed. Scutellar 

 apicals present. Dorsocentral row complete. Four humeral 

 bristles ; anterior post-humeral does not reach beyond pro- 

 notum ; second post-humeral a little smaller than first. 



Legs black and grey. First femur not hairy, tarsus some- 

 what longer than tibia. Second femur not hairy, " comb" not 

 clearly dififerentiated ; tibia not hairy, longer than tarsus. Last 

 leg not hairy. Pulvilli dark brown, fringed with silver. 



Abdomen long and conical ; the large anterior segment 

 with a median triangular black patch ; grey laterally, bordered 

 with black ; other segments with an indefinite black line along 

 the back, dark brown beside this, bordered with a pair of 

 anterior white and posterior black patches in each segment. 

 Covered dorsal] y with short rechnate brisUes ; not hairy below, 

 but clothed wdth short weak bristles. 



First segment of hypopygium black, with faint silvery 

 bloom ; second segment black, very faintly ridged, and very 

 slightly hairy. Forceps black ; lightly hairy ; rather thin 

 and weak ; not sharply pointed. Accessory plate somewhat 

 triangular, hairy. Claspers dark shiny black, simple, the 

 anterior pair larger than the posterior. The penis is a heavily 

 chitinised structure ; first joint shiny black, white ventrally ; 

 second joint nearly square in side view, provided anteriorly 

 with a stout rather sharp hook, and posteriorly with a pair 

 of yellowish brown processes (Fig. 8). 



Described from a male caught in open forest country in 

 Queensland National Park, in January 1921. The species is 

 dedicated to Dr. T. L. Bancroft and his daugher M. J. Bancroft, 

 Eidsvold, who have assisted us so freely in regard to material. 



21. Sarcophaga (Parasarcophaga) omega new subgen., 

 n. sp. (Figs. 25, 26). 



Male. — Head (Fig. 26). — Front exceedingly prominent. 

 Frontal stripe about thrice the width of the parafrontals, and 

 pitchy black in colour, a little folded, and very minutely 

 punctate. In the region of the ocelli it narrows ; but below it 

 widens out, developing into a pair of prominent folded excres- 



