Memoirs of the Asiatic Society of Bengal. Zoological Results of a Tour in the Far East

In Distant's figure the length of the head appears to be less than the distance between the inner margins of the eyes while in the Siamese specimens the head is longer than broad and is about twice as long as the pronotum.8o ZOOLOGY OF' THE ‘ AR EAST. [...] The colour of the hairs on the apices of the femora on the tibiae and on the tarsi of the intermediate and posterior legs is not entirely yellow as it is in the species mentioned by Distant in the Fauna but it varies according to the colour of the part of the legs to which they are attached that is those on the yellowish parts are yellowish and those on the darker parts are blackish. [...] the anterior end of the animal extends forward in front of the margin of the mouth aperture whiCh is thus on the ventral surface; in a number of the other species of the genus the anterior margin of the mouth coincides with the tip of the snout. [...] The space included between its outer wall and the duct which runs through its centre is a portion of the coelom continuous with that included in the coelomic sac ; and the function of the sac is apparently by the contraction of its muscular wall to produce"92 ZOOLOGY OF THE FAR EAST. [...] To mention only the most striking points of difference the two species are at variance in the matter of the anterior sperm-sac (single in one double in the other) in the presence or absence of spermatophores and in the lehgth of the chitinous penis-sheath (3-4 times as long as wide in one times in the other); the last two characters at least are of extreme importance either in the differentiati