236 Transactions. — Zoology. 



the abdominal feet are midway between the 6th and 7th seg- 

 ments, and 10 has claspers. 



The arrangement of the thoracic segments is not quite 

 clear, but appears to agree with the structure in the second 

 skin. The head has pointed hairs. 



The abdominal tubercles have single setae, which are club- 

 tipped. Owing to the robust build of the segments the 

 tubercles are very wide apart. The trapezoidals are normal. 

 Supraspiracular and anterior subspiracular are both anterior 

 to the spiracle and equidistant ; post-spiracular moved up 

 close to the spiracle. There are anterior and posterior sub- 

 ventral tubercles. The setae on the abdominal feet are 

 pointed. The larva-skin appears to be covered with very 

 fine hairs. 



Second Skin. — Larva attenuated, tubercles still widely 

 separated. Head yellowish, spotted with red. From pro- 

 thorax to anal segment yellow and red lines alternate longi- 

 tudinally. 



Head : Anterior hairs are pointed, posterior clubbed. 



Prothorax : On each side of the thin median line of scu- 

 tellum there are two anterior, two posterior, equidistant 

 setae. The prespiracular tubercle has a single seta. Above 

 the spiracle, close to the scutellum, a very fine seta. The 

 spiracle is posterior. Prespiracular tubercle has a single 

 seta. Tubercle above the legs has two separate setae. 



Meso- and post-thorax : Close to the median line a minute 

 normal tubercle bears a single seta, below this a larger 

 tubercle and anotber (subdorsal) ; anterior and posterior 

 tubercles are equidistant from the subdorsals beneath ; the 

 tubercle above legs bears one seta. All the tubercles bear 

 only a single seta. 



Abdominal segments have an additional tubercle below the 

 spiracle. The spiracle is level with the posterior subspiracular 

 tubercle. On the abdominal feet there are seven single setae, 

 and numerous setae on claspers. Abdominal 9 has all the 

 tubercles on the posterior edge ; 10 has, above the anal orifice, 

 two normal setae, two pointed setae on each side. 



Full fed (30th January, 1901). — Length, join., wider at 

 oth abdominal, from which it tapers to head and to anus. 



Colour : Brown, with mediodorsal pale line on the thoracic 

 segments, represented on abdominals 1 to 5 by an inverted V 

 — apex anterior, and line resumed but wider on the posterior 

 subsegments of 6 to 9. The posterior trapezoidal setae of 6th 

 and 7th abdominals are on elevated humps ; segment 8 has 

 pale-coloured humps ; 9 also has pale humps, but with a larger 

 hump between them. 



Laterally there is no definite marking, the whole skin being 

 finely mottled brown and whitish. The setae are all very 



