449 



soft area to be absolutely covered and hidden on the surface on which 



the larva rests, one is sur- 

 prised at its widening out 

 above this area quite regu- 

 larly, till, at a sudden sharp 

 margin, the sides meet the 

 flat top. The brown mar- 

 ginal marks are apparently 

 two to a segment, certainly 

 so at the sides where they 

 are largest and where a 

 faint depression along the 

 sloping sides seems to mark 

 Fig. 100. Liphyra brassolis. e ach segmental division. 



. Larva-case, upper side. 

 b. Empty larva-case, view of inside 

 of upper half. 



To see this however, re- 

 quires close examination, 

 some might say a little 

 imagination. 



" Turning the larva over again to examine the back more care- 

 fully, we find the margin very sharp and slightly browner than 

 the terra-cotta centre. Laterally and posteriorly it is a little 

 hollowed within the margin. Across the middle are three very 

 distinct lines, darker in colour and with the surface in front of 

 them decidedly higher than that behind. They occupy the middle 

 two-fourths of the surface, but do not invade the fourths on each 

 side next the margin. In front and behind these the indication 

 of the segmental divisions are very obscure. A faint indication of 

 a dorsal ridge exists in front of these lines. There are also a 

 number of dots that appear to be obsolete hair-points, arranged in 

 some degree as a transverse line across each segment, but with 

 outlines enough to make such a statement a little doubtful and 

 even misleading. The two segments marked out by the dorsal 

 lines are the fourth and fifth abdominal. 



******* 



" The head is nearly colourless, about 1-7 mm. wide ; centrally 

 below the mouth and pointing backwards is the labium or part of 

 it, a pale conical rather than cylindrical process ending in a short 

 chitinous tube (spinnaret ?). On each side is a long palpus 

 (maxillary?) of three joints, the last very small, projecting 

 ventrally and apparently with a fleshy process (maxilla ?) towards 

 the middle line ; in front is a tolerably normal labrum, square 

 and notched below with a good many short hairs on its anterior 

 surface. 



* ****** 



"The labrum is very fixed in its position and moves little: 

 even if I am deceived in this matter by having only stiff preserved 

 specimens to deal with, it is certain that it fits down very closely 

 and tightly laterally in the maxillary bases, leaving in front an 

 oval opening between it and the labium within which the jaws are 



TOL. II. 20 



