408 Sir S. S. Saunders 07i the habits and economy 
to protect the larva cells, these being fi-equently continued 
down to the level of the soil ; presenting in some instances 
as many as thirteen cells in a single stem. 
The adult larvas of Baphu/lossa, as awaiting their pupa- 
metamorphosis, have already been described by me ; * 
measuring about two-thirds of an inch in length and one- 
sixth of an inch in diameter, of firm fleshy consistency ; 
their colour opaque-white; each successive segment pre- 
senting an overlapping margin ; 
they are somewhat cylindrical 
and nearly of equal thickness 
tlu'oughout, with a slight disten- 
' ' sion about the thoracical region, 
and ha\4ng the posterior margin of each of the abdominal 
segments below, vaulted and hollow. 
Those of Psiliglossa I had not then observed, and it 
may be fitting, therefore, to institute a comparison between 
the two. The adidt larvas of the latter are nearly of the 
same length as the former, but of a pale yellow colour, 
^_^.^-v-v-y-j^-jj_^ broader, somewhat compressed and 
/\ \ \X\sSSSjr?\ shining, the segments strongly in- 
^■^-^'^'^ ^~^ cised but contiguous, and not over- 
lapping, nor vaulted and hollow be- 
' ' neath ; gradually tapering and up- 
curved at each end when lying on their back. Not being 
cylindrical they do not execute the same gyratory move- 
ments as the former. They measure fi.-om 15 to 18 
millimetres in length, by 4 to 5 in breadth, and from 2 to 
3 in thickness ; the smaller ones being those of the upper 
cells, which, as usual, produce males. The parts of the 
mouth in both these larvae are indicated by piceous lines 
and patches. 
The respective segments, which are very distinctly indi- 
cated, may be defined as follows : the five anterior, in- 
cluding the head, are compactly welded together and 
incapable of separate action in the pseudo-pupa state ; the 
3rd, 4th and 5th bearing a spiracle on either side. 
The thoracical region terminating here, the two anterior 
segments are assignable to the development of the imago 
head, as pointed out by Ratzebiu-g.f 
• Loc. cit. snpra, p. 73. 
t See Bni-meister's Manual of Entomology, translated by Shuckard, 
p. 35, sec. 53. Note of Translator. 
