76 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 68 



Plate 2. 



A new Nasutitermes, contrasting views of soldiers of Syntermes and the 

 soldier of a Spinitermes. 

 Fig. 1. Dorsal view of soldier of Nasutitermes (Nasutitermes) aduncus Snyder 



to show shape of head and nasus ; note head is slightly asymmetrical. 



(Camera lucida.) 



2. Lateral view of soldier of Nasutiterm,es (Nasutitermes) aduncus Snyder 



to show shape of head and large, robust, aquiline nasus. (Camera 

 lucida, same scale as dorsal view.) 



3. Miroiermcs (Spinitermes) trispinosus Hagen. Soldier. Dorsal view 



of head and pronotum to show mandibles and three anterior processes. 

 (Specimen collected at Cachuela Esperanza, Beni River, Bolivia, 

 in March, 1922.) 



4. Dorsal view of head and pronotum of Syntermes chaquam.ayensis 



Holmgren to show marginal teeth of mandibles and spines on thorax. 



5. Dorsal view of head and pronotum of Syntermes molestus Burmeister 



to show mandibles without prominent marginal teeth and lacking 

 prominent spines on thorax. (View of left mandible inset.) 



6. Mirotermes (Spinitermes) trispinosus Hagen. Soldier. Lateral view 



of head and pronotum to show mandibles and three anterior pro- 

 cesses. (Specimen collected at Cachuela Esperanza, Beni River, 

 Bolivia, in March, 1922.) 



7. Dorsal view of head and pronotum of Syntermes snyderi Emerson to 



show mai'ginal teeth of mandibles and spines on thorax. 



8. Dorsal view of head and pronotum of Syntermes peruanus Holmgren to 



show marginal teeth of mandibles and spine s on thorax. 



9. Dorsal view of head and pronotum of Syntermes hrasilicnsis Holmgren 



to show mandibles without prominent marginal teeth and lacking 

 prominent spines on thorax. 



Plate 3. 



Soldiers of three subgenera of Nasutitermes Banks 



Nasutitermes (Diversitermes) melanccephalus Snyder 



Fig. 1. Soldier (major) dorsal view of head and pronotum. 



2. Soldier (major) lateral view of head and pronotum. 



3. Soldier ( intermediate) dorsal view of head and pronotum. 



4. Soldier (intermediate) lateral view of head and pronotum. 



5. Soldier (minor) dorsal view of head and pronotum. 



6. Soldier (minor) lateral view of head and pronotum. 



Nasutitermes (Te7iuirostritermes) laticeps Snyder 



Fig. 7. Soldier dorsal view of head and pronotum. 

 8. . Soldier lateral view of head and pronotum. 



Nasutitermes (Velocitertnes) uniformis Snyder. 



Fig. 9. Soldier (major) dorsal view of head and pronotum. 



10. Soldier (major) lateral view of head and pronotum. 



11. Soldier (minor) dorsal view of head and pronotum. 



12. Soldier (minor) lateral view of head and pronotum. 



o 



