EXPLANATION OF PLATE 
Plate 18 
(The figures on this plate are all natural size.) 
Fig. 1.—Schistocerca melanocera (Stal). Lateral view of female. Topo- 
type. Charles Island, Galapagos Archipelago. 
Fig. 2—Schistocerca melanocera (Stal). Lateral view of female. James 
Island, Galapagos Archipelago. 
Fig. 3.— Schistocerca melanocera (Stal). Dorsal view of female. Vil- 
lamil, Albemarle Island, Galapagos Archipelago. 
Fig. 4—Schistocerca melanocera (Stal). Dorsal view of male. Villamil, 
Albemarle Island, Galapagos Archipelago. 
Fig. 5.—Schistocerca melanocera (Stal). Dorsal view of male. Cowley 
Mountain, Albemarle Island, Galapagos Archipelago. 
Fig. 6.—Schistocerca intermedia Snodgrass. Lateral view of female. 
Topotype. Duncan Island, Galapagos Archipelago. 
Fig. 7.—Schistocerca literosa literosa (Walker). Lateral view of male. 
Chatham Island, Galapagos Archipelago. 
Fig. 8—Schistocerca literosa punctata Scudder. Lateral view of male. 
Topotype. Hood Island, Galapagos Archipelago. 
Fig. 9—Schistocerca literosa hyalina Scudder. Lateral view of male. 
Topotype. Tower Island, Galapagos Archipelago. 
Fig. 10—Halmenus eschatus, new species. Dorsal view of male. Para- 
type. Wenman Island, Galapagos Archipelago. 
Fig. 11—Halmenus eschatus, new species. Dorsal view of female. Para- 
type. Wenman Island, Galapagos Archipelago. 
