AND SPECIES OF PYRALID.E. 51 



ferruginous brown longitudinal stripes, one on each side of the central space. On the 

 anterior edge of the third segment is a central brownish-fuscous spot equidistant between 

 two also anterior lateral ones and two posterior intermediate ones of the same colour. 

 The next segment is somewhat similarly marked, but the upper central part is re- 

 duplicated. The fifth, sixth, and seventh segments bave a pair of anterior spots near 

 the spiracles, and a pair of posterior lateral spots above them. The sides of the segments 

 below the black spiracles have a rugose and reticulated appearance, and the undersides 

 of the three anterior segments are black, the feet only tipped with brown. The pale 

 ground-colour of all the anterior segments is that of dull yellowish ivory. Behind 

 the seventh segment the larval skin is of a uniform dusky brownish tinge without 

 markings, and is evidently never exposed, the flattened claspers being partially aborted. 

 The larva is about 30 millim. in length, each tube about 40 millim. 

 The food-plant of this curious species, under the name of " Jamin," pronounced " Jah- 

 min," has been determined by Mr. Carruthers as Eugenia jambolana, Lam.* Mr .Hocking 

 writes that it is as large as a shrub, having a shiny semitransparent leaf, and that the 

 natives make their ploughs of its wood. 



The larva? are gregarious, living in strong tubes of white silk, of the consistency of 

 stout cardboard ; these are open at both ends, and from three to fifteen or more are 

 agglomerated together, the heads of the larvae projecting from one or other end, according 

 to the position of the leaves of their food, to which the whole mass of tubes is attached by 

 stout silken threads consisting of manv strands. '1 he walls of these tubes are double and 

 are very curiously constructed, their whole thickness being not less than from two to three 

 millimetres. The inner lining of white silk is smooth and rather shining ; the outer layer, 

 which has a slight yellowish tinge, is much stouter and stiffer than the inner lining, and, 

 although smooth, has an uneven surface ; this is caused by the interposition of a layer 

 of the larval excrement between the double silken wall. A more perfect arrangement for 

 keeping off heat from the body of the larva could scarcely be devised. The silk at the 

 ends of the tube is frayed out, and has been apparently used for attaching them to the 

 leaves and twigs, or for changing the position of the common dwelling, according to the 

 feeding requirements of its various inmates. When three or four tubes only are found 

 agglomerated together, these are usually parallel to each other; but when the mass 

 consists of a larger number they are placed, apparently without system, crossing and 

 recrossing each other at all sorts of angles, with their apertures thus pointing in many 

 different directions. 



I have compared specimens with the following allied genei'a described by Mr. F. 

 Moore and others: — 



Taurica sikkima, Moore, has the antennae slightly tufted at the base, and strongly 

 pubescent on both sides throughout. Cnenodomus differs from this in having the antenna? 

 bipectinated for two thirds of their length only. 



Stericta, Led., = Glossina, Gn., has a membranous process arising from the basal joint 

 of the antennae and turning back over the thorax. 



Sarama, Moore, has a similar process clothed with thick scales, reminding one in 



* Mr. Thos. Christy, F.L.S., has been good enough to supply the specimen figured in the Plate. 

 SECOND SERIES. ZOOLOGY, VOL. V. 9 



