igo8.] Records of the Indian Mnsenm. ■ • 121 



the dark rounded eyes, the space between these being occupied by 

 a large patch of dark colouring. The outlines of an undissected 

 specimen are exceedingly difficult to make out in consequence 

 of the numerous irregular patches of colour over the whole surface. 

 None of the side-plates of the perseon are deep ; those of the first 

 two segments are somewhat squared with rounded corners, those 

 of the two following are shallowly trilobed ; and this appears to 

 be the case with the sixth pair. The postero-lateral corners of 

 the third pleon segment are rounded with a minutely proiuced 

 point. The next three segments are each shorter than the third, 

 decreasing in succession. 



The first antennae have the first joint rather stout, armed below 

 with a spaced row of spines, two single and three in a group ; the 

 second joint is as long as the first, but much narrower ; the third 

 is less than a third part as long as the second ; the flagellum is 

 longer than the peduncle, with fifteen unequal joints in a male 

 and eighteen in a female specimen. The accessor}^ flagellum is 

 miscroscopically small, but carrying one or two setules. This 

 appendage is described as very small in the type species, but it is 

 relatively so much smaller in the present that it affords a good 

 ^specific character. 



The second antennae are stouter, but in both sexes shorter 

 than the first. The first three joints are short, the next two long, 

 subequal, longer than the first two joints of the first antennae. The 

 flagellum is rather shorter than the last joint of the peduncle, 

 seemingly five-jointed in the male and four-jointed in the female, 

 with several slightly curved spines, and perhaps a microscopical 

 joint not included in the above enumeration. In M. Coutiere's 

 species the flagellum of the first antennae in the male has 19 — 20 

 joints and is shorter than the peduncle, and is i6-jointed in 

 the female ; in the second antennae of the male the flagellum is 

 a little over half the length of the last peduncular joint, but is 

 itself 9-jointed, a minute apical joint being included. 



The upper lip in the present species has its margin evenly 

 convex, not slightly emarginate as figured and described for G. 

 maha] alensis . 



The mandibles agree very nearly with M. Coutiere's figures and 

 description, except that the spine-row has onl}^ six spines on the 

 left and five on the right mandible in the Indian species, instead 

 of the dozen which are attributed to each mandible in the species 

 from Madagascar. As usual, the accessory plate is more slender 

 and less strongly dentate on the right than on the left mandible. 

 In the generic definition M. Coutiere speaks of the mandibular 

 process as narrow, but it is not clear what part of the appendage 

 is intended by this expression. Schiodte originally appHed the 

 expression not to the mandible itself, but to the conical prolonga- 

 tions of the outer lobes of the lower lip, to which M. Coutiere 

 refers in describing that organ. 



The first maxillae appear to have the inner plate here rather 

 more distinct than in the type species, but without setae. The 



