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



Apex of abdomen : Notch present ; lobes indicated ; setae, apical with tip broken, 

 77 /* long (probably not more than 80 if entire), interapical 9-12.6 ix long, inner 

 ventral 3.6-5.4 fi long, outer ventral 9 n long ; anal ring with 6 setae 32 /* long 

 and with an inner row of 6 and an outer one of 16 pores, divided on dorsal side ; 

 ventral surface of apex strongly sclerotized in a rather wide linear area extending 

 anteriorly from each interapical seta, lightly sclerotized in dentate rows 

 elsewhere. 



Second stage. — Resembling adult but smaller ; margin without quinquelocular 

 pores at ends of body ; apex of abdomen much as in adult but all setae one-sixth 

 shorter and with a setal base in the position of a dorsal seta. 



Larva. — Elongate elliptical. 



Margin : With 28 8-shaped pores, posterior pores smallest, the others gradually 

 increasing in size cephalad, axes of all longitudinal ; a minute seta close to 

 each pore of the posterior 3 pairs ; 3 pairs of setae anteriorly. 



Dorsal surface: A total of 14-17 8-shaped pores usually in a submedian row 

 of 6 or 7 and a lateral row of 1-3, on each half of body, but the lateral pores 

 sometimes absent on 1 half, posterior pores slightly smaller than anterior ones, 

 all a little smaller than marginal pores of same segments ; disk pores between 

 submedian and marginal, and entad of submedian, 8-shaped pores. 



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

 stout, 2 slender ; antennal bases one-third 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 and 1 on outer margin near 

 center, tarsus 1 each on inner and outer margins ; tibia one-third as long as 

 tarsus ; 10 pairs of submarginal 8-shaped pores ; 10 pairs of submarginal minute 

 setae, on abdomen and thorax, 2 pairs of submarginal larger setae at anterior 

 end ; 1 pair of setae between antennae. 



Apex of abdomen : Notch present ; setae, apical 45 n long, interapical 5.4-7.2 fi 

 long, dorsal so minute as to be nearly indistinguishable, inner ventral 3.6 fi long, 

 outer ventral 5.4 /x long ; anal ring with 6 setae 9 n long and with an inner row of 

 apparently 6 and an outer row of apparently 12 pores, divided on dorsal and 

 ventral sides ; ventral surface of apex with a sclerotized area extending anteriorly 

 from near each apical seta. 



Test of male. — Elongate elliptical, 1-1.4 mm. long, 0.6 wide; dorsally slightly 

 convex near anterior end, nearly flat near posterior end, with faint longitudinal 

 median and lateral carinae and with transverse striations ; yellow, transparent, 

 thin, shiny ; marginal filaments white, shortest at posterior end. 



Adult male. — 1 mm. long: 



Head: Antenna 10-segmented, formula (longest to shortest), HI, IV, V, VI, X, 

 VII, VIII, IX, I, II ; antennal setae, I, 7 ; II, 9 ; III, IV, 11 ; V, 15 ; VI, VII, VIII, 

 IX, 11-13 ; X, 16 shorter and 2 very long ; basal bars strongly diagonal ; 20 setae 

 between or anterior to ventral eyespots ; 4 setae on dorsal surface. 



Thorax : Bar between wing bases nearly rectangular, two and a half times 

 as long as wide ; tibia one-ninth longer than tarsus. 



Abdomen : Five segments each with a seta dorsally on lateral margin, 3 

 segments each with a seta in ventral lateral area; each lobe area with 1 long 

 and 2 or 3 short setae ; penis sheath with 1 pair of long and 1 pair of short 

 setae dorsally near base, and 10 setae on each side of ventral opening. 



Male nymph. — Distinguishing characters similar to those of adult male. 



Third-stage male. — Similar to second-stage but elliptical, and with more quin- 



quelocular pores 



Data. — Redescribed from the following material: Four females, 

 one second-stage specimen, eight larvae, one adult male, two male 

 nymphs, and one third-stage male (all mounted) from Australia, 

 Maskell Collection No. 218; two mounted females from Leucopogon 

 virgatus, New South Wales, E. Darnel, 1865, U. S. N. H. ; unmounted 

 specimens and three mounted females from Leucopogon riehei, Swan 

 District, Australia, E. Pritzel, August 1901, U. S. N. H., and specimens 

 (including seven females, six larvae, one adult male, and two male 

 nymphs that have been mounted) on Styphelia riehei, Cheltenham, 

 Victoria, Australia, C. French, June 1905, from W. W. Froggatt, 

 No. 54. 



Closely related to multiporurn, and rather similar to transversum. 



