EXPLANATION TO PLATES. 
387 
PLATE VIII. 
AXATOMT OP ALU TLA XTLDTA. 
(Original.) 
Flo. ] . Exoskeleton, female imago : a, antenna ; cl., 
clypeus \ E, eye ; P., palpus ; mi, max- 
illa; sp. 1 , first spiracle; eps. 1 , epi- 
sternuni ; scatnm of prothorax ; $.*, 
scutum of mesothorax ; tm. 7 , scutel- 
lum of mesothorax | w, wing ; tt, ster- 
num ; ex., coxa;; epm., epiniera ; I, II, 
TTI, thoracic segments ; 1-9, abdominal 
segments. 
Fig. 2. General anatomy of male imago: br., brain; 
op., oesophagus; ao., aorta; g,?,^', 
ganglia \ fr., food reservoir; Te., testis ; 
tt, stomach ; m. v., nialpighian vessels; 
i, intestine; e, ccecuni; Jl., rectum; p., 
penis; a, clasper-. 1-9, abdominal seg- 
ments ; I-EH. thoracic segments. 
PLATE LX. 
ANATOMY OP A LETT A XTLFNA 
(Original.) 
Fig. 1. Exoskeleton, ventral view i p., palpus ; mz., 
maxilla) ; E, eye ; s«utnm (?) of pro- 
thorax; L 1 , joint of first leg; tt, ster- 
num; tpt, epiaternum ; pt., patagium ; 
a, a, median pieces. 
Fig. 1. A. Section of scale. 
Fig. 2. Three tarsal joints, leg of imago. 
Fig. 3. Long scale from the abdominal brush of 
the male. (J-inch objective.) 
FlO. 4. Female organs of reproduction: e. p. .cop- 
ulatory pouch; v., v., vagina; S. d., 
sperm-duct; or., base of the four left 
ovarian tubes; u., the uterine cham- 
ber, or expansion of the oviduct; the 
right oviduct can be seen cut off ; c. v., 
copulatory vestibule; a. gl.\ thesingle 
and a. gl*, the double accessory gland, 
only a portion of the tubes being 
shown; 8, the eighth abdominal seg 
nient, the upper part being indicated 
bj* dotted lines, so as to show the ovi- 
duct beneath ; 9., terminal segment 
with its lateral lobe. 
Fig. 5. Cuticle from copulatory pouch. 
Fig. 6. Small portion of me, more magnified. 
(I- inch objective.) 
Fig. 7. Transverse section through one of the 
folds of the copulatory pouch (^inch 
objective): m, muscular layer; ep, 
epithelium; Cu., cuticula intima. 
PLATE X. 
AWATOMT OP ALETIA XTLIXA. 
(Original.) 
Fig. 1. Reproductive organs of the male, from 
above: ta, testis; v. d., vasa deferent ia ; 
g.m., glandule mucos®; d. e., ductus 
ejacula tonus ; p, penis ; v. pr., ventral 
process of ninth segment ; *, telson of 
same ; e, left, e l , right clasp ; b, brush ; 
a, fnus; p. p., protractor penis. 
Flo. 2. View from beneath of the ninth segment 
of the male with its appendages. Let- 
ters as before. 
Fig. 3. Lateral view of same: /, movable finger 
over the anus ; other letters as before. 
The position of the brush is shown by 
dots, so as to make the shape of the 
clasp more evident. 
Fig. 4. Tip of penis, from above. 
PLATE XI. 
AHATOMT OP A LI TLA XTLEHA. 
(Original.) 
Flo. 1. View of spiracle, abdomen of imago. Fig. 4. Cuticula of first abdominal segmenu 
Fig. 2. Single spine of same spiracle. Fig. 5. Pores to which scales are attached. 
Fig. 3. Exoskeleton of third thoracic and first ab- , Fig. 6. Tip of maxilla. 
dominal segment: S.*, scutum; A., Fig. 7. Hairs of maxilla. 
flap; B, tympanum; Epm. 3 , epimeron; ! Fig. 8. Single spine from maxilla. 
<*r. J , coxa; Sp, spiracle. 
