OF WASHINGTON, VOLUME XVI, 1914 161 



EXPLANATION" OF PLATES. 



PLATE IX. Mnemonica auricyanea Walsingham, larva. 



Fig. 1, lateral view of full grown larva. 



Fig. 2, lateral view of flattened larval skin; SP, thoracic spiracle; sp, ab- 

 dominal spiracles. 



Fig. 3, details of the sixth abdominal segment, lateral view; .r, small un- 

 numbered setse. 



PLATE X. Mnemonica auricyanea Walsingham, larva. 



Fig. 4, dorsal view of epipharynx, labrum and post-labrum; ex, epiphar- 

 ynx; Ir, labrum; pi, post-labrum; mb, median bristles. 



Fig. 5, ventral view of epipharynx; ch, hairtuft; ep ext, exterior epipha- 

 ryngeal plate ; ep int, interior epipharyngeal plate ; er, rod along the margin ; 

 es, sensory puncture; ex, epipharynx.^ 



Fig. 6, dorsal view of head, a, (on detail A), dorsal mandibular articula- 

 tion; af, adfront; afl, -adf rental line; an, annulus around the antennal base: 

 r, (on detail A), carinated lateral margin of front; e, (on detail A), epistoma; 

 cpc, epicranium; /, front; of, occipital foramen; pi, post-labrum. 



Fig. 7, ventral view of head; epc, epicranium; h, hypostoma with /, im- 

 pression where tentorium is attached; m, mentum; ocl, eyespot. 



PLATE XI. Mnemonica auricyanea Walsingham, larva and wing venation 

 of the imago. 



Fig. 8, maxillse, hypopharynx and maxillulac; bb, branched bristles; r/.s, 

 duct of salivary glands; epc, margin of epicranium; g, galea or digitus la- 

 cinia; hr, chitinous rod of hypopharynx; hx, hypopharynx; I, lacinia; tup, 

 basal joint of maxillary palpus; mxl, maxilluke; spr, spinneret. 



Fig. 9, ventral view of maxilla? and labium; cr, cardo; err, chitinization 

 along inner edge of cardo; Ip, basal joint of labial palpus; 1st, labial stipes; 

 m, mentum; mpl, basal joint of maxillary palpus; mpll, terminal joint; 

 ply, palpiger; sm, submentum; r, chitinous rod along the inner margin of 

 lacinia; st, maxillary stipes; str, chitinous rod along the margin of maxil- 

 lary stipes. 



Fig. 10, left mandible, ventral view. 



Fig. 11, dorsal view of right antenna; an, annulus around antennal base; 

 at, large papilla or terminal joint. 



Fig. 12, venation of forewing. 



Fig. 13, venation of hindwing. 



PLATE XII. Mnemonica auricyanea Walsingham, pupa. 



Fig. 14, labrum and mandibles of the imago within the labrum and man- 

 dibles of the pupa; labrum and mandibles of the pupa indicated with dotted 

 lines; mf, mouthframe. 



Fig. 15, ventral view of left mandible. 



Fig. 16, dorsal view of head; ant, antenna; /s, frontal seta-; //;, labial pal- 

 pus; h, labrum; md, mandible; mf, mouth frame; >n/>, maxillary palpus: />/:, 

 beaklike prolongation of front; pr, proboscis. 



Fig. 17, ventral view of head; epc, epicranium; /;, hypostoma; //>, labial 



