HYr0X0MKUTIT).E. 135 



liYPONOMEUTID.E. 



Argyresthia plectrodes, n. sp. 



(? . 7 mm. Heiid and tliorax shining white, orbits and shouMcrs 

 narrowly pale ochreons. Palpi pale ochrcous. Abdomen pale 

 grej'. Forewings elongate-lanceolate; 7 and 8 separate ; whitish- 

 fuscous, strewn with coarse transverse dark fuscous strig;uli)3 ; 

 dorsal area as far as fold throughout shining white; an outwardly 

 oblique dark fuscous streak from beyond middle of dorsum, reach- 

 ing ^ across wing, obscurely interrupted in middle, its upper 

 portion somewhat thickened ; a dark fuscous apical dot : cilia 

 whitish-grey, base white Avith minute dark fuscous marks. Hind- 

 wings and cilia light grey. 



UoiixEO, Kuching, in August (Heivift) ; one specimen. -^-^Aa 



10 



I t- 



Argyresthia calliphanes, n. sp. / /^^la^vt*' ''' 



(5 2- 13-14 mm. Head and thorax snow-white, face and ;_ f^-T"** 

 shoulders ochreous-tinged. I'alpi whitish-ochreous. Abdomen " ' 

 light grey, segmental margins white. Forewings eloirgate-lanceo- 

 late ; 7 and 8 separate ; shining snow-white ; markings shining 

 golden, partially edged with coppery ; a narrow fascia from base 

 of costa to i of dorsum, widest on costa, where it is usually marked 

 with a whitish dot ; a V-shaped fascia resting on dorsum beyond 

 middle, its arms widely divergent, costa sometimes marked with 

 one or two dark dots between these, the dots sometimes connected 

 M'ith one or other of arms ; an apical patch enclosing a white spot 

 on costa just before apex (sometimes extended to termen below 

 apex) and another on middle of termen, its anterior edge irregularly 

 parallel with preceding fascia, and Avith a median projection some- 

 times extended to connect with it above middle : cilia ochreous- 

 grey. Hindwings grey, darker posteriorly ; cilia grey. 



Canada, Toronto, from June to Augnst (P<criith); fifty specimens. 

 Allied to (joedarUlla, from Avhich it is easily separated by snow- 

 white head and thorax. Under a lens this is a most beautiful 

 insect. ^^^ 



Argyresthia mesocausta, n. sp, 



cT . 7 mm. Head, palpi, and thorax Avhitish. Abdomen grey. 

 Forewings elongate-lanceolate ; 7 and 8 separate ; whitish ; costal 

 third from base to |- suffused with grey, and obscurely strigulated 

 with dark fuscous ; small dark fuscous spots on costa before and 

 beyond middle, costal edge between these Avhitish with one or two 

 dark fuscous strigulte ; an irregular dark fuscous dot on fold 

 at \ of Aving ; a transA'erse dark fuscous blotch on dorsum in 

 middle of Aving, reaching more than half across wiug, its anterior 

 angle touching costal suffusion between the two spots ; a dark 

 fuscous blotch occupying apical fourth of wing, its anterior edge 



