Smithsonian miscellaneous collections . othecawhich contained seven eggs; there are 10 teeth or evaginations in the keeland 11 ducts; the tooth (arrow) of one of the ducts is missing. 55, Oothecawhich contained 13 eggs; there are only 13 teeth but 14 ducts, one of theteeth (arrow) being missing. 56-57, Oothecae in which the keels have beenpartly (56) and completely (57) eaten by cockroaches. 58, Eggs which weredeposited without the formation of an ootheca. All figures except 53 areX45. Figs. 59-60. Blatta orientalis. 59, Normal ootheca. 60, Abnormal egg casewhich did not harden or develop norm
Smithsonian miscellaneous collections . othecawhich contained seven eggs; there are 10 teeth or evaginations in the keeland 11 ducts; the tooth (arrow) of one of the ducts is missing. 55, Oothecawhich contained 13 eggs; there are only 13 teeth but 14 ducts, one of theteeth (arrow) being missing. 56-57, Oothecae in which the keels have beenpartly (56) and completely (57) eaten by cockroaches. 58, Eggs which weredeposited without the formation of an ootheca. All figures except 53 areX45. Figs. 59-60. Blatta orientalis. 59, Normal ootheca. 60, Abnormal egg casewhich did not harden or develop normal pigmentation; respiratory chambersand ducts were not molded in the keel. Figs. 61-62. BlattcIIa germanica. 61, Newly formed ootheca that partially col-lapsed 2 days after it had been removed from the female. 62, Two attachedoothecae; eggs from the egg case on the left have hatched. Notice that thefirst ootheca rotated to the right; the keel of the second is upward. X 4-5- SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 122, NO. 12, PL. 7. (See opposite page for legend.) Plate 8 Figs. 63-65. BlattcUa vaga. Dorsal (63) and ventral (64) views of a femalecarrying an ootheca. The keel is turned toward the females right. X , Newly hatched nymphs clustering around and climbing over the female was still carrying the ootheca (keel to the right) at hatching,but dropped it soon after this photograph was taken. The nymphs crawledall over the mother and seemingly fed on the greasy material covering thesurface of her body; the female raised her wings and some of the nymphscrawled under them on the dorsal surface of her abdomen. X 5-8. SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 122, NO. 12, PL. 8
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Keywords: ., bookcentury1800, bookdecade1860, bookidsmiths, booksubjectscience
