EUTRICHA QUERCIFOLIA. 211 



warts are stronger (to about the same extent as those on paler areas 

 are weak) ; five poorly marked subsegments are present ; the tubercles 

 are represented by many-haired warts ; i and ii are set nearly four 

 square on abdominal segments, i slightly the outer on thoracic 

 segments ; i is also slightly the larger on thoracic segments, and ii 

 slightly the larger on abdominal segments ; iii is about equal to i 

 and is vertically above spiracle, but at some little distance from it ; 

 ? iv and v combined form a single wart equal to iii, slightly below 

 and a short distance behind spiracle ; a slightly larger supplementary 

 prespiracular, or anterior marginal, tubercular wart (characteristic of 

 the Lachneids) is horizontally in line with spiracle ; there are also 

 two well-developed marginal warts, the fleshy bases of which form the 

 lappets ; one of two single-haired tubercles placed near each other below 

 spiracle, but further forward on segment, is perhaps vi ; in addition, 

 there occurs on the abdominal segments a little group of 3 or 4 single- 

 haired tubercles on posterior margin of segments in same plane as 

 iii, on some segments these form a line or row rather than a group, 

 extending upwards nearly as far as ii ; another line or row of three 

 single-haired tubercles occurs below the prespiracular or marginal 

 wart; the warts each give rise to a considerable number of smooth, 

 tapering, generally black, hairs, a few of the lateral ones being 

 white ; no skin spicules are present, nor general growth of secondary 

 hairs. Legs shiny-black (August 3rd, 1900). Second instar : 

 Head roughly trapezoidal, colour now dead grey, finely mottled 

 with darker ; a black transverse band present, just above clypeus ; 

 the scutellum not at all distinct, the surface and colouring practically 

 the same as rest of body, neither chitinous nor horny ; the body low, 

 flattened, Q-section rather more marked, lies closely to twig or leaf- 

 stalk, the lateral processes already well-developed on thoracic and 

 first two abdominal segments also present on abdominals 3 to 7, 

 not so long, but broader, and double, due to duplicate condition 

 of marginal tubercles. Viewed laterally the larva slopes from meso- 

 thorax to anal segment, the outline only broken by the prominent 

 elevation formed by the conjoined bases of the anterior trapezoidals (i) 

 on the 8th abdominal. The intersegmental incisions not very 

 marked, but subsegments moderately distinct. The tubercular warts 

 and primitive setae almost lost amidst a dense growth of second- 

 ary hairs ; the lateral thoracic warts are, however, still apparent, 

 particularly the prespiracular of prothorax ; towards the posterior 

 portion of each segment are two black, slightly raised, elevations, 

 possibly a modification of a pair of the dorsal tubercles ; they are 

 surrounded by a faint orange border stronger on some segments 

 than others, notably the 2nd abdominal segment ; in general 

 appearance, these dark raised spots remind one of those on the 

 dorsal area of the larvae of Cosmolriche potatoria, Dendrolimas pim\ 

 and Dimorpha versicolora. The larva is now dull dark grey, somewhat 

 mottled and speckled with darker, the dorsal prominence on the 

 8th abdominal velvety-black ; a black transverse band across the 

 2nd abdominal segment, broader laterally than dorsally ; a black 

 velvety dorsal patch on mesothorax and a small faint one on 

 metathorax, these form a background for the two bright orange 

 spots, one on either side of the median line, on each of these 

 segments; the mediodorsal line is faintly marked on the thoracic 



