SEIRAKCTIA. 423 



Larva. Stages 1, 2. Head dark brown ; prothoracic somite with 

 sublunate dorsal plate, with a curved series of six piliferoiis warts iu 

 Iront and a series of smaller ones behind them ; the spinulate hair 

 from larger warts very long; behind the plate arc single subdorsal 

 warts with two pairs of warts below them; meso- and metathoracic 

 somites similar, also with two confluent lateral warts with a single 

 wart below them; somites 4-11 with two dorsal scries of small 

 warts, and a single lateral wart with two coalesced warts below it, 

 then three sublateral series of three warts on each somite, the upper 

 series on the spiraciilar line, the middle series crescentic, the lowest 

 series minute at base of legs ; 12th somite with two large subdorsal 

 groups of three coalesced warts, the suranal plate roughened 

 with warts ; body pale brown, the warts darker ; hair long and 

 sparse. 



Stage 3. Hair thicker ; prothoracic shield partially bisected ; the 

 primary piliferous warts replaced by small secondary warts each 

 bearing a hair, so that they are arranged in thin pencils. 



Stage 4. Head with pale median stripe ; clypeus pale, connected 

 with the broad pale lateral stripe ; prothoracic shield bisected ; 

 piliferous warts smaller, the dorsal warts of 2nd and 3rd somites 

 arranged in curved transverse series ; somites 4-11 with the four 

 dorsal warts arranged more trapezoidally ; somite 12 with the 

 two dorsal warts half as large as before ; body more chestnut-red. 



Stage 5. Head ochreous ; tubercles ochreous, large, high, with 

 long bristles which are black-brown, ochreous at base, with a 

 number of grey bristles on anterior and posterior somites ; the 

 abdominal somites with the two small median dorsal tubercles 

 crowded in front of the two much larger lateral ones ; somites 

 transversely banded with irregular creamy-white slashes, three in 

 a row; prothoracic somite ochreous, the others black-brown, with 

 the tubercles reddish ochreous. 



Adult. Head cherry-red ; the anterior part of clypeus and 

 antennae whitish ; tubercles reddish ochreous ; hairs reddish 

 ochreous at base, blackish towards tips ; body dark brown ; pro- 

 thorax like head ; somite 2 with cream-white medial spot and 

 transverse lateral slash with a faint broken transverse line behind 

 it ; somite 3 with two transverse cream-white lines with medial 

 and two lateral spots ; the abdominal somites with two similar 

 transverse lines without the intermediate spots, the anterior line 

 with a dilation at middle ; the terminal somites with the hinder 

 line often absent or reduced to spots. Food-plant, Sahal palmetto. 



1990. Seirarctia clara. 



Teracotona clara, Holl. P. U.S. Mus. xviii. p. 249, pi. vii. f. 12 (1895). 



S . Head and thorax red-brown to deep brown ; antennae pale 

 brown ; femora crimson above ; abdomen orange, some crimson hair 

 at base ; subdorsal series of black bands and lateral spots. Fore 

 wing flesh-red, more or less thickly irrorated with black, and the 

 ground-colour sometimes entirely suffused with brown ; more or 



