LASIPLEXIA; PAREUPLEXIA; TRACHEA. By W. Warren. 187 



28. Genus: Lasiplexia Hmps. 



Tongue present; Irons smooth, with a large tuft of hair; vertex also tufted; palpi stout, upturned, 

 the second segment hairy, the third short and smooth; thorax clothed only with hair, with slight crests only; 

 abdomen without crests; t'orewing elongate; the apex prominent; termen oblique, crenulate; antennae of $ 

 with tuherculate or sessile fascicles of cilia. Type Lasiplexia cuprinn Moore. 



Sect. II. Antennae of j with sessile fascicles of cilia. 



L. chalybeata Walk. (= suffusa Moore) (43 f). Porewing dark brown with purplish tinge and ohalybeata. 

 slightly sprinkled with pale scales; inner and outer lines double, blackish, filled in with pale, the outer 

 hmulate-dentate; reniform stigma with a dull yellow spot externally, sometimes with a white dot below; 

 subterminal line pale and waved; hindwing brownish; in the ab. albistigma (= ab. 1. Hmps.) (43 f) the spot albistigma. 

 on outer edge of reniform is pure white with a white dot both above and below. An Indian species, 

 extending to Yatong, Tibet. 



29. Genus: Pareuplexia gen. nov. 



Differs from Lasiplexia, to which it is closely allied, in having more slender palpi, the second 

 segment longer and not so stout, the terminal varying in length, slightly porrect, smooth. 



Type Pareuplexia chalybeata Moore. 



Sect. I. Terminal segment of palpi long. 



P. chalybeata Moore (= spectabilis Pouj.) (42 b). Porewing brown, suffused with darker, thickly chalybeata. 

 sprinkled with blue scales, especially on the veins; inner and outer lines deep brown, edged conversely 

 with silvery blue, the outer strongly dentate externally on the veins, and followed by a narrow paler 

 space: claviform stigma large, velvety black; orbicular dark, edged with rufous and blue scales, oblique, 

 elliptical; reniform with dark blue-speckled centre and rufous annulus, broader externally; subterminal line 

 blue grey on a deep brown band; terminal area purplish grey; terminal lunules black; hindwing brownish 

 fuscous with darker subterminal band edged by a bluish grey line. An Indian species occurring also in 

 W. China. 



Sect. II. Terminal segment of palpi much shorter. 



P. pallidimargo spec. nov. (42 b). Like chalybeata of which it has been considered a form; the marginal ? K ' K( d<- 

 area broadly blue grey or bluish white; distinguished by the shorter terminal segment of palpi. Whether 

 this species, certainly Indian, also occurs in W. China, like the last, is uncertain; it is introduced here as a 

 probable denizen. 



30. Genus: Trachea Tr. 



Tongue present; frons smooth, tufted with hair; palpi upturned, the 2 nd segment broadly scaled, 

 the third short; thorax clothed with scales; vertex with a ridge of scales; prothorax and metathorax with 

 divided crests; abdomen with dorsal crests; antennae with sessile fascicles of cilia; forewing broad, the 

 termen crenulate: scaling purplish grey and green mixed; the stigmata and lines well-developed. Larva 

 stout, slightly humped on vein 11, feeding on low plants in autumn, hybernating as pupa in the ground 

 without cocoon. Type Trachea atriplicis L. 



T. atriplicis L. (43 g). Forewing greyish purple irrorated with fuscous; the basal area and the shade atriplicis. 

 preceding submarginal line, especially in the lower half, and the upper stigmata bright pale green; median 

 area below subcostal vein deep dark green; a large white, generally pinkish-tinged blotch with bifid ex- 

 tremity runs along vein 2 to outer line; submarginal line greenish white, angled sharply inwards on sub- 

 median fold and bluntly beyond the cell, accompanied by dark and light green clouds; hindwing fuscous 

 grey, the outer half dark fuscous, with traces of dark cellspot and outer line; — ab. similis Stgr., recorded similis. 

 from Ussuri. and also Central Germany, has the green tints altered into olive, and the pale blotch yellow; 

 ab. diffusa Spid. has all the markings faint and washed out; (this is usually the case with bred examples); diffusa. 

 the Japanese form — ab. gnoma Btlr. (43 g) is larger, deeper purple, the green shadings less developed, gnoma. 

 the white blotch larger and more conspicuous. — Larva purplish brown, sometimes with a green tinge; 

 dorsal and subdorsal lines blackish, with faint oblique lateral stripes; spiracular lines pinkish white, darker- 

 above; spiracles white, dark-ringed; on dock, and other low plants. Generally distributed throughout 

 Europe, and occurring in Asia Minor, Armenia, Turkestan, Siberia, and Japan. 



T. auriplena Walk. (= atriplicis Koll. nee L.) (43 g). Differs from the form gnoma Btlr. in being auriplena. 

 much more overrun with green tints, the purple grey shading only remaining clear along the lines, and 

 filling up the space between outer and subterminal lines like a band; the stigmata green with black outlines; 



