AND SPECIES OF PYEALIDJ5. 51 



ferruginous brown lone;itudinal 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 have a pair of anterior spots near 

 the spiracles, and a pair of posterior latei*al 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 tijiped with ])i-own. 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. Carruthersas Eugenia j ambolana, 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 larvae 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 many strands. 'J he walls of these tubes are double and 



are verv curiouslv constructed, their -n hole thickness being not less than from two to three 



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



which has a slight yellowish tinge, is mucli stouter and stifFer than the inner lining, and, 



although smooth, lias 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 fraj^ed 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 tulies only are found 



agglomerated together, these are usually pai'allel to each other; l)ut when tlie 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 Avitli the following allied genera described by Mr. P. 

 Moore and others: — 



Tcmrica sikkima, Moore, has the antenna* slightly tuft(Hl at the base, and stronsjly 

 pubescent on both sides throughout. Ccenodomiis differs from this in having the antennae 

 l)ipectinated 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 Avith tliick scales, reminding one in 



* itr. Thns. Christy, F.L.S., has been irond onoii.sli to supply the specimen figured in the Plate. 

 SECOND SERIES. — ZOOLOGY, VOL. V. 9 



