FAM. MICROPTERYGID/ZE 5 
4. GENUS MNEMONICA, NOV. GEN. 
Type : M. subpurpurella, KTaworth. 
Characters. — Head with long rough hairs. Antennz from one-half to three-fifths, filiform. 
Labial palpi moderate, porrected, hairy beneath. Maxillary palpi long, several-jointed, with appressed 
scales, folded. Middle tibiade with one apical spur; posterior tibize thinly hairy above. Forewings with ra 
running into 15, forming long basal furcation, 1c well-defined, 'connected with lower margin of cell by 
bar near base, 2 and 3 approximated or stalked, forked parting-vein well-defined, rising out of lower 
margin of cell near base, termingting in 4 and 5. between which transverse vein is absent, 7 and 8 
stalked, 7 to apex, 9g sometimes out o£ 7, secondary cell more or less defined, 11 from before middle, 
with an additional branch (114j above middle to costa, 12 often with short additional branch (13) from 
near apex to costa. Hindwings under t, ovate-lanceolate, cilia three-fourths ; neuration as in forewings, 
but ra out 1$ near. base, diverging, 10 connected with 1c by bar near base, 2 and 3 remote, 9 absent, 
I3 absent. 
Geographical distribution of species. — Confined to Northern temperate regions. The 
larvae mine blotches in leaves of Cupuliferae and Betulaceae. 
1. M. unimaculella, Zetterstedt, Ins. Lapp. p. 1008 (1840). N. and C. Europe. 
2. M. luteiceps, Walker, Cat. Brit. Mus. Vol. 28, p. 494 (1863). N. America. 
3. M. cyanosparsella, Williams, Ent. News, Philad.Vol. r9, p. 14, pl. 2(1908). N. America. 
4. M. auricyanea, Walsingham, Trans. Amer. Ent. Soc. Vol. 10, p. 204 N. America. 
(1882). 
5. M. aurosparsella, Walsingham, Proc. Zool. Soc. Lond. p. 85, pl. rr, N. America. 
f. 12 (1880). 
6. M. griseocapilella, Nalsingham, Ent. Record, p. 162 (1898). N. America 
7. M. fastuosella, Zeller, Isis, p. 185 (1839). C. Europe. 
? donzelellus, Duponchel, Hist. Nat. Lep. Vol. 11, p. 408, pl. 302, f. 12 (1838). 
8. M. subburpurella, Haworth, Lep. Brit. p. 571 (1829). — Plate, Fig. 8. — Europe. 
3. SUBFAM. MICROPTERYGINAZE 
Characters. — Mandibles developed. No tongue. Labial palpi rudimentary or obsolete. Middle 
ibie with apical group of bristles, without spurs. 
5. GENUS EPIMARTYRIA, WALSINGHAM 
Epimartyria. Walsingham, Ent. Record, Vol. to, p. 16r (1898). — Type: F. pardella, Nalsingham. 
Characters. — llead with rough hairs. Antennze three-fifths, moniliform. Labial palpi obsolete. 
Maxillary palpi long, several-jointed, with appressed scales. folded. Posterior tibie not hairy. Fore- 
wings with ra running into r5, forming long basal furcation, 1€ well-de&üned, connected with lower 
margin of cell and 16 by bars near base, 2 and 3 short-stalked, forked parting-vein well defined, rising 
out of lower margin of cell near base. terminating in 4 and 5, between which transverse vein is absent, 
secondarv cell defined, 7 and 8 stalked, 7 to apex, 11 from one-third of cell. connected by bar with 12, 
12 giving rise to an additional branch (13) above in middle. Hindwings under r, elongate-ovate; 
neuration as in forewings. but ra out of 16 near base, diverging, r1 absent, 12 without additional branch. 
