SAKCOI'UAOin KI,IKS — -.InnNSToX AND TrK(;S. 183 



21. Stirciiji/niiid I Utiirnlix n. s[). 



(Plate XXXV., fi<r. 2.) 



In general appearance a inedium-Hized greyish fiy, niea.suring some 

 10-11 mm. in length. 



Mai.k. 



Henil. — Frons fairly prominent, about tliree-Hftli.s the width of eyes. 

 Frontal stripe dark brown, about half as broad again as parafiontals, the 

 latter silvery, faintly tinged with gold and with dark reflections ; genas 

 pale brownish yellow; occiput silveiy, faintly tinged with golden, pjleven 

 frontals beside frontal stripe; verticals smaller than usual, lateral verticals 

 absent. Vibrissae small ; seven very short, stout epistomials, and seven 

 similar facials. These bristles are considerably stouter than any hitherto 

 seen by us in Australian sarcopliagids. A single row of short black 

 bristles behind eyes; occiput covered with short silvery hairs which 

 lengthen below, but become shorter again and moi'e sparse on tlie anterior 

 part of the gewa^. Eyes red brown, about three-fifths the height of head. 

 First anteunal joint conspicuous ; second black, and smaller than usual ; 

 thii'd about two and a half times the length of second, and of a fawn 

 colour. Mesofacial plate very pale golden, with darker borders. Ptilinal 

 suture remains fairly distinct throughout life. 



Thorax grey ; the middle longitudinal black line consists of three 

 longitudinal portions anteriorly; postex'iorly it is continued as a long 

 nairovv line, broadening out a little on the scutelluui. Lateral lines 

 irregular and not extending on to scutellum. Lateral and vertical regions 

 of thorax grey; scutellum much abbreviated. Of the acrostichals, only 

 the posterior pair of the anterior set is differentiated. Apical scutellars 

 present. Dorsocentral row as usual. Two intra-alars and three humerals 

 present. 



Lef/s black, femora greyish. First femur not distinctly hairy ; tibia 

 hairless. Second femur lightly hairy; a "comb" differentiated; tibia 

 hairless. Third femur lightly hairy ; tibia hairless. 



Ahdmiien black with greyish tesselatioiis, the whole rather darker 

 than usual. Abdomen covered dorsally with short reclinate bristles; 

 hairy ventrally. Hypopygium black and hairy. Forceps black, liaiiy, 

 and very distinctly humped, the upper halves closely approximated, the 

 lower widely apait. Claspers simple, and rather slender. The distal 

 joint of the penis is heavily chitinised, and of a rather complex structure. 



Female. 



This closely resembles the male, but differs in the following charac- 

 ters : — Frons as wide as eyes; eyes four-sevenths the height of head. 

 Vertical bristles present. Frontal stripe a little wider than paraFrontals. 

 The epist(miials, facials and vibrissas even nn^re abbreviated than in male. 

 Scutellar apicals absent. First femur veiy lightly hairy ; second devoid 

 of comb;'third femur lightly clothed with golden hairs, tibia hairless. 



Described from a male and a female captured on the ocean beach at 

 Caloundra, South Queensland, August, 1921. 



