GENITAL SYSTEM OF LYCTUS BRUNNEUS. 
585 
A pair of glands or sacs (sg) disappearing beneath the oedeagus {oe) are 
shown (I'l. 31. figs. 1,3, & 5). These glands unite and form a short narrow 
duct. When dissected out of a mature beetle the glands and duct areal\\a3's 
found distended. The duct terminates abruptly between the 7th and 8th 
sternites. In section these glands are seen to be composed of cells containing 
very large nuclei. The function of the glands is not known ; no odour other 
than that of the wood from which the beetles emerged was ever perceived. 
The glands are apparently pygidial glands (Berlese 2). 
Female Genital System. 
The reproductive organs of the female (PL 32. fig. 1) consist of two 
ovaries Qo, ro), two oviducts (od), a paired valve (vl), a spermatheca (sp) and 
spermathecal gland {s2Jg), and a common oviduct (co) running into the 
sheaths of the " ovipositor," which terminates in the bursa copulatrix. In 
addition there is a long flexible cloacal stalk (U-) (" Kloakstiel," Stein 11) 
and two short rods {sr). 
Text-fig. 2. 
,^' 
A, the ovary of an immature female. B, the ovaiy of a matuie unteitilized female, 
semi-diagTammatic. c, calyx; ec, egg-chamber; et, ovarian ' tube ; /, filament; 
tc, terminal chamber ; re, ripe eggs. Camera lucida, X 54. 
The ovaries {lo, ro) of a mature beetle each consist of fourteen ovarian 
tubes {et). Each tube consists of from four to five egg-chambers (ec), and a 
terminal chamber (to) terminating in a filament (/'). The ovarian tubes 
arise from an enlargement of the oviducts — the calyx (c). The calices act 
as receptacles for the ripe eggs, which pass into them from the basal egg- 
chambers. In fig. 1 (PI. 32) there are three ripe eggs in the left calyx and 
two in the right. 
It was found that the left ovary was always developed earlier than the right. 
