EXPLANATION OF PLATES. 
PLATE XLIII. 
Fig. 1. Tei'mopsis angusticollis, pronofcum. 
Fig. 2. Termopsis angusticollis , mesonotuni : w 1 , 
1st pair of wings. 
Fig. 3. Termopsi s angusticollis, inetanotiim : w 2 , 
2d pair of wings. , - 
Fig. 4. lermopsis angusticollis, propleuruni. 
Fig. 5. Termopsis angusticollis, mesoplourum. 
Fig. 6. Termopsis angusticollis , metaplournm. 
Fig. 7. Termopsis angusticollis , prothorax, ster- 
nal view : pst , prcesternum ; not, notum. 
Fig. 8. Termopsis angusticollis, mesotliorax, ster- 
nal view. 
All enlarged. 
FIG. 9. Termopsis angusticollis , metathorax, ster- 
nal view. 
Fig. 10. Psocus novee- scotice, meso- and mctatho- 
rax (notum), dorsal view: w x , tv*, wings. 
Fig. 11. Psocus novce-scotice, motanotuin, seen 
more from behind. 
Fig. 12. Psocus novce-scotice, meso- and meta- 
pleura. 
Fig. 13. Psocus novce-scotice , mesotborax, seen 
from in front. 
Fig. 14. Psocus novce-scotice, mesoscutellum. 
Gissler del., under author’s direction. 
PLAT 
Fig. 1 . Pteronarcgs californica, propleuruni. 
Fig. 2. Pteronarcgs californica, mesoplourum. 
Fig. 3. Pteronarcgs californica, metapleuru 
Fig. 4. Pteronarcgs californica , prosternum 
Fig. 5. Pteronarcgs californica, mesosternum. 
Fig. 6. Pteronarcgs californica, metasternum. 
William W. Gridin del., under 
XLIV. 
Fig. 7. Pteronarcgs californica, abdomen, dorsal 
view. 
Fig. 8. Pteronarcgs californica, abdomen, ventral 
view : rh, rhabdites. 
Fig. 9. Pteronarcgs californica, abdomen, lateral 
vi^: br , branchiae or gills ; sp, spiraclesw 
fchor's direction. All magnified. 
PLATE XLV. 
Fig. 1. Ephemera ( Leptophlehia ) cupidaf Head Fig. 5. Ephemera (Leptophlehia) cupida ? Meso- 
and thorax, dorsal view : pro-n, prono- j and meta-sternum: sp, spiracle, 
turn; w 1 , w 2 , 1st and 2d pair of wings: Fig. 6 . Ephemera sp., larva, head soon from in 
1, first abdominal segment. ' front: md, mandibles. 
Fig. 2. Ephemera (Leptophlehia) cujrida? Head Fig. 7. Ephemera sp., larva, head seen from the 
seen from beneath : lb, labium ; Ip, la- side, the occipital region not drawn, 
bial palpi; mx, maxilla; st, proster- Fig. 8. Ej)hemera, pupa, head seen from in front. 
num - ! Fig. 9. Ephemera, imf%o, head seen from above. 
1*10.3. Ephemera ( Leptophlehia ) cupida ? Hoad j Fig. 10. Ephemera, imago, head seen from abovo, 
seen from above. j different view, more in front. 
Fig. 4. Ephemera ( Leptophlehia ) cupida i Head 1 
and prothorax, seen laterally. 
Figs. 1-5 drawn by Dr. C. F. Gissler; G-10, author del. 
PLATE XL VI. 
Fig. 1. Ephemera (Leptophlehia) cupidaf Male, 
much enlarged to show the structure 
of the notum and abdomen: c, cerco- 
poda; rh, outer 3-jointed claspers or 
rhabdites; rh 1 , inner pair of 3*jointod 
rhabdites. 
Fig. 2. Ephemera (Leptophlehia) cupida f Side 
view of thorax : the lettering as in other 
plates. * 
Fig. 3. Ephemera (Leptophlehia) cupida ? Side 
view of propleuruni, with side view 
of notum. 
Fig. 4. Ephemera (Leptophlehia) cupida ? Abdo- 
men, ventral view, showing the 9 uro- 
steruites. 
Fig. 5. Ephemera (Leptophlehia) cupida ? Abdo- 
men, lateral view. 
All the figures enlarged. Gissler del. 
PLATE XL VII. 
Fig. 1. JEschna heros, head, front view: cl. p, post-, 
cl. a, aute-clypeus. 
Fig. 2. JEschna heros, head, lateral view. 
Fig. 3. JEschna heros, head, under view. 
Fig. 4. Agrion verticals ? , head, vertical view. 
Fig. 5. Agrion verticals ?, head, under view. 
Fig. 6. A : f/rion verticals ?, head, lateral view. 
Fio. 7. JEschna. heros, labium: 1, 2, 1st and 2d 
joint of labial palpus; le, lamina ex- 
terior of ligu la; li, lamina interior. 
All the parts enlarged; drawn 
Fig. 8, rEschna heros, maxilla. 
Fig. 9. rEschna heros, mandible. 
Fig. 10. Agrion verticals ?, pronoturn. 
Fig. 11. Agrion verticale ?, dorsal portion of meso* 
and metathorax, showing the great 
development of the episterna ( epis ') 
and epimera (cm 1 ). 
Fig. 12. Oaloptergx maculata , prouotum. 
Fig. 18. Caloptcryx maculata, same as in Fig. 1 1- 
by William W. Griftiu, under author’s direction. 
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