228 



INSECTS OF SAMOA. 



85. Leptotroga armstrongi, sp. n. (Plate VIII, figs. 8, 9). 



Palpus liver brown, with a small admixture of mahogany red and sepia, 

 and a few light buff scales. Antennal shaft with warm buff scaling, tinged at 

 base with chestnut. Head liver brown in front, to warm buff behind. Thorax 

 warm buff mixed with liver brown in front. Tergum sepia, tinged with liver 

 brown at base. Pectus warm buff, mahogany red in front. Venter warm buff, 

 irrorated with mahogany red. Legs warm buff, foreleg shaded with liver brown 

 and sepia, mid and hind legs with mahogany red and sepia, the tarsal segments 

 sepia tipped distally with warm buff. Forewing liver brown mottled with 

 mahogany red to orange rufous ; a light buff dot in middle of cell, representing 

 an orbicular stigma ; reniform stigma with upper third outlined with cartridge 

 buff, rest outlined with orange rufous ; a liver brown medial shade from reniform 

 to middle of inner margin ; a liver brown spot just above anal vein and just 

 before postmedial fascia ; postmedial fascia liver brown, bowed (concavity 

 basad), with light buff dash on costa and dots on veins ; an obscure sepia sub- 

 terminal fascia, sometimes accentuated with light buff or ochraceous orange, 

 bowed between costa and vein M 3 , and again between vein M 3 and inner margin 

 (concavities terminad) ; fringe liver brown mixed with mahogany red. Hind- 

 wing similarly coloured, but with a fuscous black dot at end of cell, a postmedial 

 series of fuscous black dots edged distally with light butl, and a subterminal 

 fascia parallel with termen. Underside light to warm buff irrorated with sepia 

 and suffused with ochre-red ; both wings with a sepia spot at end of cell, and 

 narrow sepia postmedial and subterminal fasciae, and with a pre-terminal series 

 of interneural sepia dots. Expanse 40 mm. 



Similar. Expanse 42 mm. The allotype $ has a broad fascia of light 

 buff, irrorated with liver brown, 3 mm. wide at wing-base running along costa 

 and gradually tapering towards apex, which it does not quite reach ; the ground- 

 colour is more uniformly mahogany red. 



Holotype Upolu : Malololelei, 24.ii.1924. 



Allotype Upolu : Malololelei, 2,000 feet, 14.vi.1924. 



Paratype Samoa. 1920 (O'Connor). 



Paratype $. Upolu : Siumu, 24.xi.1923 (Armstrong). 



