EXPLANATION OF PLATES. 
PLATE XXXIV. 
Figs. 1-8, 10, 11. Abdomen (tergal view) of typical i Fig. 9. Abdomen (tergal view) of male Diaphero- 
female Ortlioptera. | mera. 
PLATE XXXV. 
Figs. 1-9. Abdomen (end, tergal view) of typical Figs. 10-16. Abdomen (end, tergal view) of typical 
female Orthoptera. male Ortlioptera. 
PLATE XXXVI. 
Figs. 1-9. Abdomen, side view, of typical female Ortlioptera. 
PLATE XXXVII. 
Note. — Plates XXXVII and XXXVIII liave been combined so that the explanations 
apply to Plate XXXVII, and there is no Plate XXXVIII. 
PLATE XXXIX. 
Fig. 1. Termopsis angusticollis, h^ad, from be- 
neath : x, hypopharyngeal chitinous 
support. (Gissler). 
Fig. 2. Tennopsis angusticollis , head, from above. 
Fig. 3. Termopsis angusticollis, head, from side; 
the clypeus is shaded. 
Fig. 4. Termes flavipes, head, from above: v, epi- 
cranial v-shaped suture. 
Fig. 5. Termes fla vipes, head, from side. 
Fig 6. Psocus sp., head, from above: v, v-shaped 
suture. 
Fig. 7. Psocus sp., head, from side. 
Fig. 8. Pteronarcys californica, hoad, drawn from 
the side. 
Flos. 1-5 drawn by C. F. Gissler; C, 7, 8, by William W. Grittin: all magnified. 
PLATE XL. 
Fig. 1. Pteronarcys californica, head, upper view. | Fig. 6. Pteronarcys californica, 2d maxilla (la- 
Fig. 2. Pteronarcys californica, head, under view. hium). 
Fig. 3. Termopsis angusticollis , 1st maxilla: c, Fig. 7. Pteronarcys californica, mandible. 
cardo. Fig. 8. Termopsis angusticollis , labrum and part o f 
Fig. 4. Termes flavipes, 1st maxilla. clypeus. 
Fig. 5. Pteronarcys californica, 1st maxilla. Fig. 9. Termes flavipes, labrum. 
Figs. 1, 2, 5-7 drawn by William W. Grittin ; 3, 4, 8, 9, by Gissler: all magnified. 
m 
PLATE XLI. 
Fig. 1 . Termes flavipes, head seen from beneath: 
mx, maxilla ; palpr, palpiger ; li, 
lnmina interior; le, lamina exterior; 
p, labial palpus. 
Fig. 2. Termes flavipes, 2d maxilla (labium), seen 
from beneath. 
Fig. 3. Termopsis angusticollis, 2d maxilla (la- 
bium). 
Fig. 4. Termes flavipes, mandible, external view. 
Flo. 5. Termes fla vipes , mandible, internal view. 
All enlarged. 
Fig. 6. Termopsis angusticollis, mandible, from 
within. 
Fig. 7. Tei'mopsis angusticollis, mandible, from 
without. 
Fig. 8. Termopsis angusticollis, mandible, from 
without. 
Fig. 9. Termopsis angusticollis, mandible, from 
withiu. 
Fig. 10. Termopsis angusticollis, part seen beneath 
the labial palpi. 
Gissler del. 
PLATE XLII. 
Fig. l. Termes flavipes. 
Fig. 2. 1'ermcs flavipes. 
Fig. 3. Termes flavipes. 
Fig. 4. Tennes flavipes. 
Fig. 5. Termes flavipes. 
Fig. 6. Termes flavipes. 
Fig. 7. Termes flavipes. 
Fig. 8. Termes flavipes. 
Pronotum. 
Mesonotum. 
Metanotum. 
Propleurum. 
Mesoplourum. 
Metapleurum. 
Prothorax, sternal view. 
Mesotliorax, sternal view. 
Fig. 9. Termes flavipes. Metathorax, sterna 
view. 
Fig. 10. Termes flavipes. Abdomen, tergal view : 
1-10, the ten tergites; c, cercopoda. 
Fig. 11. Termes flavipes. 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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