EXPLANATION OF PLATE XXIII. 
Arcte caerulea. 
Fic. 7.—Posterior part of abdomen of male from above, after 
removal of the scales, to show the stridulating plate. 
Machaerota planitiae. 
8.—Tubes on a twig of Zizyphus jujuba. 
9.—Larva. 
to.—A more advanced larval stage. 
I1.—Last larval stage from above. 
12.—Last larval stage from the side. 
13.—Adult. 
Hindolotdes indicans. 
14.—Tube with larval exuvium and newly emerged adult. 
15.—Last larval stage from the side. 
Otinotus oneratus. 
16.—Eggs in bark of Zizyphus jujuba, seen as a transparency. 
17.—Adult females with eggs, on stem of Bauhinia varians, 
accompanied by black ants (Camponotus compressus). 
18.— Adult from the side. 
19.—Adult from above. 
20.—Larva from above, with caudal filament partly exserted. 
21.—Larva from the side, with caudal filament retracted. 
22.—Larva from the side with caudal filament exserted. 
Conorhinus rubrofasciatus. 
23.—Head and prothorax from below, showing stridulating 
organ. 
Ectomocoris cordiger. 
24.—Head and prothorax from below, showing stridulating 
organ. 
