BACOTIA. 258 



Breyer, " Ann. Soc. Ent. Belg.," v., pp. 5, 6-11 (1861). Fumea, Spey., " Geog. 

 Verb. Schmett.," i., pp. 312, 460 (1853), p. 230(1862); Hein., " Schmett. Deutsch.," 

 i., pp. 188-9 (1859) ; Staud., " Cat.," 2nd ed., p. 65 (1871) ; Eehbg., " Abh. Nat. 

 Ver. Brem.," vi., p. 468 (1879) ; Peyer., " Cat. Lap. Als.," 2ad ed., p. 59 (1830) ; 

 Frey, "Lep. der Schweiz," p. 92 (1880) ; Heyl., "Ann. Soc. Eat. Belg.," xxv., p. 73 

 (1881); Snell., " De Vlmders," p. 443 (1832) ; Bang-Haas, "Nat. Tids.," 3, xiii., 

 p. 172 (1883) ; Lampa, " Ent. Tids.," vi., p. 39 (1885) ; Klrby, " Cat. Lep. Het.," 

 p. 521 (1892) ; Barr., " Ent. Mo. Mag.," xxxi., p. 263 (1894) ; " Brit. Lep.," ii., p. 365 

 (1895) ; Meyr., " Handbook," <fcc, p. 774 (1895) ; Ciradja, " Iris," via., p. 83 

 (1895); Eeutti, "Lep. Bad.," 2nd ed., p. 303 (1893) ; Tutt, "Ent. Record," xi., 

 p. 178 (1899). 



The name Bacotia was first used in the Entomologist's Record, 

 vol. xi., p, 207, where sepium is cited as the type. The chief 

 characters of the genus may be summarised a^ follows : 



Ovum. — Oval in outline ; surface smooth, pale yellowish in colour ; eggs laid in 

 pupal skin. 



Case. — Upright, conical with blunt rounded top ; composed of whitish silk, 

 covered with minute particles of licheu, or bark. 



Larva. — Head entirely black ; third legs well developed, even for a Psychid ; 

 plates in pro- and mesothorax entirely black, interrupted by a narrow, white (rough- 

 edged) median line on prothorax, slightly broader on mesothorax; on metathorax 

 two very small plates, wide apart ; clypeus terminates definitely far from vertex (as 

 in Psyche), not stretching up to it (as in Taleporia) ; the plate between clypeus and 

 epicranium extremely wide (more so than in almost any other larva). 



Pupa. — ■ <? • Head depressed in front ; prothorax very small, frontal ; head- 

 piece large, prominent, protruding frontally before the prothorax ; waist dorsally at 

 metathorax and 1st abdominal ; terminal abdominal segments narrowed ventrally, 

 but not bent round ; anal segment blunt ; the forewings well-developed, hindwings 

 to end of 3rd abdominal ; antennae broad, marked with pectinations ; second legs 

 partly hidden, 1st pair of legs shorter than antennae ; the second and third pairs 

 beyond antennae ; labium very short, without a central division, ends in two large 

 rounded lobes ; maxillae triangular, jaws well marked ; abdominal segments 3-8 

 with a row of large dorsal spines, bent backwards, placed close to anterior edge of 

 segment ; 3-6 with very fine spines on posterior border of intersegmental mem- 

 brane ; tubercles i, ii, iii with setae, ii nearer middle line than i ; hairs indistinct 

 ventrally ; two round knobs on either side of genital slit on abdominal segment 8 ; 

 two small dorso-anal slightly recurved spikes ; abdominal segments 3-7 free. ? . 

 Somewhat arched, venter slightly concave, dorsum convex, tapers to either end 

 slightly, ends rounded; abdominal segments 3 (dorsally) -6 free; anterior row of 

 dorsal spines on 3-7 ; intersegmental spines 6-7 ; no dorso-anal hooks ; proleg scars 

 very pronounced ; wings, legs and mouth-parts distinct ; labrum angulated, man- 

 dibles distinct, rounded ; maxillae short, rounded, no definite palpus ; labium with 

 transverse joint ; antennae half length of wings, wings to end of 2nd abdominal. 



Iiiago. — 3 . Anterior wings rather pointed ; thinly sealed ; antennae third 

 joint without pectinations (present in Fumea), pectinations scaleless (scaled in 

 Fumea) somewhat spathnlate. First leg with spine arising at middle, and equals half 

 length of tibia (in Fumea spine arises at base and equals length of tibia). ? . Head 

 ventral, black ; compound eyes large, black ; prothorax small, black, chitinous ; 

 mesothorax black, chitinous, well-developed ; metathorax narrow, chitinous, 

 frontally only black-margined ; abdominal segments 1-6 with a dark band of black 

 scales centrally, breadth of scales one-eighth to one-sixth of their length, ends 

 rounded, the ring on the 7th much darker, and a brown corneous plate dorsally ; 

 the 8th surrounded by the yellow-grey silk of anal tuft, from which extruded oviposi- 

 tor projects ; antennae long, slender, 15 or 16-jointed (number probably varies), penul- 

 timate two or three swollen, last very small ; legs slender, black with paler joints 

 and claws ; tarsi 4-jointed {Fumea is 5-jointed), no tibial spines on any leg ; ovi- 

 positor with 2 segments. 



Neuration. — As in Fumea (casta), except that in forewing, there is a secondary 

 cell cut off the apex of cell, this varies much in size ; nervures of forewings all 

 separate (in one example 10 is forked at apex of the wing, simple on other) ; 

 nervures of hindwings as in F. casta (4 is, in one example bifurcated on one 

 side only) ; the variability of the neuration is seen in frequent bifurcations of the 

 terminal nervures. 



