BY R. J. TILLYARD. 583 



f) mm.; at 5-6, 2 mm.; at 8-10, 3-5 mm. Colour black and yellow, 

 as follows : 1, blackish, hairy, a faint yellowish dorsal line, and a 

 patch of yellow on sides; 2, black with a fine dorsal line, a fine 

 transverse basal line, a slightly wider transverse apical band, and 

 most of sides, yellow; auricles flat, inconspicuous, yellow; .'5-4, 

 black, broader basal and apical bands of yellow, joined by a broad 

 sublateral band crossed by the black line of the carinse; con- 

 spicuous black bands along all sutures; 5-7, black, with irregular 

 yellow basal and apical bands of yellow diminishing in width 

 from 5 to 7; 8, black with a fine basal yellow line and a con- 

 spicuous apical yellow band; 9, basal three-fifths black, apical 

 two-fifths irregularly yellow; 10, black, a touch of yellow basally 

 and on the curved apical borders(Plate Ixii., fig. 11). Append- 

 ages: swjoerior 7 mm. long, by 5-5 mm. broad, black, leaf-like, 

 shaped as in P. ingentissima Ti\\ya,vd, but much smaller. Inferior 

 black touched with brown, 2 ram. long, by 3 mm. wide, trape- 

 zoidal, curved, a slight projecting median point underneath; 

 shape intermediate between that of P. ingentiasima and P. 

 giyantea (Plate Ixii., fig, 12). 



^.Unique. Total length 95, ahdo^nen 69, forewhig 62, hind- 

 wing 61, expanse 130 mm. 



Differs from male in its shorter and more cylindrical abdomen; 

 breadth at 1-2, 5 mm.; at 3-4, 4*5 mm.; at 5-9, 4 mm.; 10, slightly 

 narrower. Yellow markings all l)roader and more conspicuous. 

 Appendages 1 mm., short, straight, black, tips rather blunt, with 

 two stiff' hairs projecting from each. Ovipositor reaching just to 

 end of abdomen, upcurved, carrying two filaments, and, on the 

 keel between and below them, a row of sharp bristles set close 

 together. 



Hab. — Cooktown, N .Q., six males taken by myself; January, 

 1908. Kuranda, N.Q., one female taken by Mr. F. P. Dodd; 

 December, 1907. 



Types : (J$, Coll. Tillyard. 



This very ijeautiful insect is intermediate in size Ijetween P. 

 ingentissima Tillyard, and P. gigantea Leach, but resembles the 

 foi'mer in its slenderness of build. It may be easily distinguished 

 from both by the conspicuous black and yellow colour-pattern, 

 57 



