116 J. C. W. Kersuaw, 
abdomen, where it dilates into a large, more or less globate, and 
delicate sac, with indications of a smaller lateral sac on either side, 
i. e. the whole sac is somewhat trilobed.e Forwards the food 
reservoir extends as a large but delicate tube to the end of the 
snout-like epicranium, which it entirely fills. Within the mesothorax, 
and on the lateroventral surface, the food-reservoir emits several 
smaller diverticula which pass between the muscles of the thorax; 
one pair passing down into the coxae of the middle legs, and 
apparently endinge blindly. These diverticula are not shown on the 
drawings. 
The great size and numerous diverticula of the food-reservoir 
scarcely seem to justify the use of this term; it probably fulfils 
some physiological function — perhaps separating the wax-products from 
the food, before the latter passes into the stomach. The great 
deposit of wax over the interior of the snout could then be 
accounted for. 
From the junction of the oesophagus and food-reservoir the 
stomach (Fig. 14 St) passes as along, convoluted tube, varying but little 
in size, to the junction of the urinary tubes (Ur), where there is a 
well marked constrietion. Behind this is a short intestine (Zn), 
without any well defined colon or rectum. The intestine continues into 
the hard, chitinous and very mobile anal style (Fig. 16 As) and tube 
(At). From the food-reservoir-junction to the anal tube the stomach, 
with intestine, is about sixteen times the length of the abdomen. 
The four urinary tubes are rather large in diameter, and about 
eight times the length of the abdomen; the basal part is colourless 
the rest (in old adults) orange-brown. They lie in a mass, tangled 
with tracheae and other ducts, chiefly under and amongst the 
genital organs. 
The heart and dorsal vessel (Fig. 12 H) is a long simple tube, 
reaching from near the anus to the brain. It is of large diameter and 
slightly swelled at each segment of the abdomen; where it passes 
into the thorax it inclines downwards rapidly and narrows to a 
very slender tube, which passes forwards over the food-reservoir in 
the median line and, inclining to the right to clear the latter organ, 
dips toward the brain. The abdominal portion of the heart is of a 
rather bright light green during life — the rest is colourless. 
The male has each testis (Fig. 14 7) composed of six lobes, the 
two testes being enclosed in a common membrane of a whitish colour, 
the lobes themselves being red. Each vas deferens (Vd) into which 
