Article beginning on page 105.
Psyche 6:105, 1891.

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PSYCHE.
ON A SINGULAR GLAND POSSESSED BY THE MALE HADENOECUS SUBTERRANEUS.
BY H. GARMAN, LEXINGTOX, KY.
The male of this cricket is found at in some female moths of the family times with a pair of white, fleshy ap-
Bombyci&de. If the organs are scent
pendages protruding from slits between
glands: however, it is a little strange
the terga of the 9th and 10th abdominal
that they should be borne by the males.
somites, thenatureof whichis not clear,
I can imagine no other use for them.
and abo~~t which I find nothing written
The sense of smell is certainly the one
in the literature relating to the species, best calculated to bring the sexes to-
to which I have access. gether in the darkness of the caves. The slits tl~rough which the organs
Auditory organs such as occur in Locus-
appear are situated one on each side an- tidae and Acrididae they do not possess, terior to and a little within the cerci. and the tactile sense, though highly de- When fully protruded the glands are
veloped, is manifestly inadequate to all white, cylindrical, a little
demands of the peculiar surround-
tapering, and are about ings.
1-8 inch long. They are
As organs possibly of the same
not protr~ided by the nature, I may mention that Mia11 young, as far as observecl,
and Denny refer to glands of un-
but the slits, which are of
known function which are pro-
rather large size, can be made out in truded in the pleural region of the them without difficulty. I believe abdomen in Corydia camficdige~a, they are protruded during the period
one of the Blattidae.
of sexual excitement. A number of Prof. A. S. Packard figures on pl. I 7, examples were taken in co$uZa with fig. 3, of his work on cave animals, a the lot in which individuals with pro- male cricket which is said by him to be truded glands occurred, but unfortu- infested with a parasitic fungus. There nately were not noticed with refer- is some probability that this supposed ence to the glands at the time of fungus is one of these glands. collecting. They appear to the have
The figure represents the tip of the
no immediate connection with genital
abdomen of the male cricket, seen from
organs.
the side, and with the somites drawn
What their f~mction may be can only
apart more than is natural.
7, 8, 9,
be conjectured at present. Scent glands somites; a, gland, partly protrmled ; somewhat like them have been observed
6, fully protruded gland.




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