128 MISC. PUBLICATION 4 2 4, U. S. DEPT. OF AGRICULTURE 



fairly thin; marginal filaments whitish, very short; elliptical larval exit in 

 ventral surface at margin. 



Adult female. — Longer than wide, posterior end slightly produced; 1.5 mm. 

 long, 1.15-1.25 wide. 



Margin: 8-shaped pores in a single row terminating one and a half to two 

 times the length of an apical seta from bases of setae, posterior pores 9 fi long 

 and 5 wide, the others 10-12 n long and 7 wide, usually a pore's length apart. 



Dorsal surface : Minute 8-shaped pores numerous ; disk pores sparse ; tubular 

 ducts 18 ix long. 



Ventral surface: Antenna bluntly conical, with 1 seta nearly as long as, and 

 2 much shorter than, diameter of antenna ; beak with 2 pairs of setae : spiracle 

 with bar broad, and with both bar and atrium heavily sclerotized; 55-65 

 quinquel ocular pores extending from inner end of spiracular bar to body margin, 

 in a row which is usually 3 or 4 pores wide but occasionally 6 or 8 pores wide 

 at some point between spiracle and margin ; multilocular pores, having 5-7 

 loculi, in a longitudinal row of 5-7 at each end of genital opening; 5 or 6 dark- 

 rimmed 8-shaped pores each side of beak, a few between spiracles, some scattered 

 in lateral area, and others arranged in 2-4 transverse rows posterior to beak; 

 submarginal 8-shaped pores in a single row apparently terminating near the 

 posterior pair of marginal 8-shaped pores, about one-third as numerous as 

 marginal 8-shaped pores ; submarginal setae in a complete row terminating 

 about halfway between the posterior pair of marginal 8-shaped pores and 

 bases of apical setae ; 2 setae near each end of each row of multilocular pores, 

 and 3 groups, each with 2 or 3 setae, anterior to each of those rows and spaced 

 at uniform intervals. 



Apex of abdomen : Setae, apical 56-64 fi long, interapical 12 n long, one 5.4 fi 

 long usually entad of interapical on 1 side of body only, inner ventral 6-8 i*. 

 long, outer ventral 8-10 /x long; anal opening in ventral surface) well removed 

 from margin; anal tube short and membranous or not apparent; anal ring 

 nearly or actually, on the surface, a sclerotized band with 4 setae apparently 1 n 

 long. 



Second stage.— Resembling adult in shape, but much smaller; margin with 

 8-sbaped pores terminating a pore's length from bases of apical setae; ventral 

 surface with bar and atrium of spiracle slightly sclerotized, 10-12 quinquelocular 

 pores between spiracle and body margin ; apex of abdomen as in adult but without 

 a seta entad of interapical seta. 



Larva. — Elongate ovoid. 



Margin : With 28 8-shaped pores, axes of all longitudinal ; a minute seta close 

 to each pore of the posterior 3 pairs ; 2 pairs of setae at anterior end. 



Dorsal surface : 8-shaped pores arranged in a submedian, a lateral, and a 

 submarginal row of 9^14 each, on each half of body, with a total of 66-76, 

 slightly variable in size and slightly smaller than marginal pores ; 2 or 3 disk 

 pores observed. 



Ventral surface : Antennal setae, I, 2 ; IV, 1 ; V, 1 ; VI, 2 long, 3 stout, 2 fairly 

 stout, 1 slender; antennal bases one-fourth length of antenna apart; beak 

 setae, 2 pairs apical, 1 pair basal ; spiracle with 1 trilocular and 1 quinquelocular 

 pore; leg setae, coxa 4, femur 1 on inner margin near base, tarsus 1 each on 

 inner and outer margins ; tibia about one-half length of tarsus ; 8 pairs of 

 submarginal 8-shaped pores of which 1 pair is between the antennae ; apparently 

 11 pairs of submarginal minute setae, on abdomen, thorax, and head ; 1 pair of 

 setae between antennae and mouth parts. 



Apex of abdomen : Lobes sometimes indicated ; setae, apical 54 fx long, inter- 

 apical 10.8 /x long, a pair 2 /x long entad of interapical, inner and outer ventral 

 each about 3.6 /x long ; anal opening in margin ; anal tube short, membranous ; 

 anal ring sclerotized, with 4 setae, each apparently 1 fi long, or setae not 

 recognizable but their bases distinct, apparently with 2 pores, divided on dorsal 

 and ventral sides. 



Data. — Described from unmounted material, 14 mounted females 

 (some very poor), 2 mounted second-stage specimens, and 15 mounted 

 larvae on Agonis sp., Coolgardie, West Australia, G. Compere, Com- 

 pere No. 1010, holotype and paratypes. 



This is the only known species in which all the multilocular pores 

 are arranged in a longitudinal row at each end of the genital opening. 

 It is apparently rather closely related to victoriae. 



