146 On new and little-known Mantide. 
breadth of prothorax at dilatation 6:3; length of meso- and 
metanotum taken together 17, of abdomen 21°5, of tegmina 
48 ; breadth of tegmina 16, of marginal area 4°75. 
Alcoholic specimen. 
Hab. Ceylon (fF. M. Mackwood). 
4, HMierodula birivia. 
Mantis birivia, Stoll, Spectres, Mantes, &c. pl. ix. fig. 31 (1787). 
anna sage birtvia, Saussure, Mém. Orth. Mexique, &c. tom. ii. p. 89, 
4, fig. - 
Hierosita bivivia, Saussure, Mél. Orthopt. 11. 4° fase. p. 41. 
@ ¢. Total length 80-87 millims.; height of head 8:5-9°5, 
breadth of head 11°33-12; length of prothorax 29-32, breadth 
of prothorax at dilatation 8°6-9-2 ; length of abdomen 30-33, 
breadth of abdomen 18; length of mesonotum and metanotum 
taken together 18°5-20, of tegmina 49-53, from base to 
stigma 18-20, of stigma 2; breadth of tegmina 19-20°5, of 
marginal area 5°6-6. 
Alcoholic specimens. 
In the larger specimen (from Madras) the discoidal vein 
emits three branches in the right wing and five in the left ; 
in the smaller (from Bangalore) three in the right and two in 
the left; while in M. de Saussure’s specimen it is three- 
branched in both wings. 
5. Mierodula taprobane, n. sp. 
2. Allied to the preceding, but differing :—in its stouter pro- 
thorax, the lamellar lateral margins of which are broader and 
extend, narrowing gradually as they go, from the supracoxal 
dilatation to the base of the segment ; in its broader and more 
coriaceous tegmina, the anal area of which alone is mem- 
branous; in the form of its facial shield, which is higher 
(longer) than broad, instead of broader than high, the upper 
margin of which is obtuse-angled instead of arcuate, and the 
surface of which is marked by two obtuse vertical ridges on 
its upper half; and in the armature of the anterior angle of 
the fore femora, which is furnished, as in H. notata, with six 
or seven large, stout, and blunt conical spines only. The 
apical third of the tegmina, which in H. birivia are uniform 
green, is stained brownish yellow. ‘The discoidal nervure of 
the wings is three-branched. The fore tibie have 14-15 
teeth on the inner edge, and 11 on the outer. 
Total length of body 83 millims.; height of head 9°6, 
breadth of head 11:6; length of prothorax 30°6, breadth of 
prothorax at dilatation 11; length of meso- and metanotum 
taken together 20°5, of abdomen 31; greatest breadth of 
