EXPLANATION OF PLATES. 
PLATE XXXIV. 
Figs. 1-8, 10, 11. Abdomen (tergal view) of typical Fig. 9. Abdomen (tergal view) of male Diaphero- 
female Orthoptera. | mera. 
PLATE XXXV. 
Figs. 1-9. Abdomen (end, tergal view) of typical Figs. 10-16. Abdomen (end, tergal view) of typical 
female Orthoptera. male Orthoptera. 
PLATE XXXVI. 
Figs. 1-9. Abdomen, side view, of typical female Orthoptera. 
PLATE XXXVII. 
Figs. 1-6. End of abdomon, side view, of typical Orthoptera. 
PLATE XXXVIII. 
Figs. 7-16. End of abdomen, sido view, of typical femalo Orthoptera. 
(Plates XXXIV-XXXV1U drawn by J. S. Kingsley.) 
PLATE 
Flo. 1. Termopsis angusticollis , hgpd, from be- 
neath : x, hypopharyngeal chitinous 
support. (Gissler). 
Fig. 2. Termopsis angusticollis , head, from above. 
Fig. 3. Termopsis angusticollis, head, from side; 
the clypeus is shaded. 
Fig. 4. Termes Jlavipes, head, from above: v , epi- 
cranial v-shaped suture. 
Figs. 1-5 drawn by C. F. Gissler; 6, 7, fi 
XXXIX. 
Fig. 5. Termes Jlavipes, head, from side. 
Fig. 6. Psocus sp., head, from above: v, v-shaped 
suture. 
Fig. 7. Psoc us sp., head, from side. 
Fig. 8. Pteronarcys californica, head, drawn from 
the side. 
, by William W. Grifiiu: all magnified. 
PLATE XL. 
Fig. 1. Pteronarcy 8 californica , head, upper viow. I Fig. 6. Pteronarcys californica, 2d maxilla (la- 
Fig. 2. Pteronarcys californica , head, under viow. bium). 
Fig. 3. Termopsis angusticollis , 1st maxilla: c, 1 Fig. 7. Pteronarcys californica, mandible. 
cardo. Fig. 8. Termopsis angusticollis, labrum and part of 
Fig. 4. Termes Jlavipes, 1st maxilla. clypeus. 
Fig. 5. Pteronarcys californica, 1st maxilla. Fig. 9. Termes Jlavipes, labrum. 
Figs. 1, 2, 5-7 drawn by William W. Griffin; 3, 4, 8, 9, by Gissler: all magnified. 
PLATE XLI. 
Fig. 1 . Termes jlavipes, head seen from beneath: 
mx, maxilla; palpr , palpiger; li, 
lamina interior; le, lamina exterior; 
p, labial palpus. 
Fig. 2. Termes Jlavipes, 2d maxilla (labium), seen 
from beneath. 
Fig. 3. Termopsis angusticollis, 2d maxilla (la- 
bium). 
Fig. 4. Termes Jlavipes , mandible, external view. 
Flo. 5. Ter me 8 Jlavipes, mandible, internal view. 
All enlarged. 
Fig. 6. Termopsis angusticollis , mandible, from 
within. 
Fig. 7. Termopsis angusticollis, mandible, from 
without. 
Fig. 8. Termopsis angusticollis, mandible, from 
without. 
Fig. 9. Termopsis -angusticollis, mandible, from 
within. 
Fig. 10. Termopsis angusticollis, part seen beneath 
the labial palpi. 
Gissler del. 
PLATE XLII. 
Fig. 1. Termes jla vipes. 
Fig. 2. Termes Jlavipes. 
Fig. 3. Termes jlavipes. 
Fig. 4. Tennes Jlavipes. 
Fig. 5. Termes Jlavipes. 
Fig. 6. Termes Jlavipes. 
Fig. 7. Termes jlavipes. 
Fig. 8. Termes jlavipes. 
Pronotum. 
Mesouotum. 
Metanotum. 
Propleurum. 
Mesopleurum. 
Metapleurum. 
Prothorax, sternal view. 
Mesothorax, sternal view. 
Fig. 9. Termes Jlavipes. Metathorax, sterna 
view. 
Fig. 10. Termes Jlavipes. Abdomen, tergal view : 
1-10, the ten tergites ; c, cercopoda. 
Fig. 11. Termes Jla tripes. Abdomen, ventral view. 
Fig. 12. Termes flavipes. Abdomen, lateral view, 
showing the 10 tergites and 9 urites. 
All magnified. 
Gissler del., under author’s direction. 
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