. Bulletin of the Department of Agriculture. Agriculture; Agriculture. Fig. 4.—The fork-tailed katy- did (Scuddtria Jure at a): First-instar nymph. About three times natural size. (Original.) The young katydids of this species vary in length from one-sixth to three-fourths inch, depending on their age. Immediately after issuing from the egg they are of a pale flesh color, without visible vestige of wings. The head and mouth parts are large in proportion to the rest of the body; the antennas are long and slender and usually directed forward. The larger nymphs, with rudimentary wings or '&q
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. Fig. 4.—The fork-tailed katy- did (Scuddtria Jure at a): First-instar nymph. About three times natural size. (Original.) The young katydids of this species vary in length from one-sixth to three-fourths inch, depending on their age. Immediately after issuing from the egg they are of a pale flesh color, without visible vestige of wings. The head and mouth parts are large in proportion to the rest of the body; the antennas are long and slender and usually directed forward. The larger nymphs, with rudimentary wings or '"wing-pads," are bright green, closely match- ing the color of the orange leaves on which they rest. They resemble somewhat the young of the short-horned grasshoppers (Acridiidas), ex- cept for the long, slender antennae. They usually remain motionless upon the leaves or move over to the side away from the observer when too closely approached. Ordinarily at the approach of danger they become perfectly motionless in every part and, simulating the leaf color closely, are readily overlooked. When sufficiently disturbed, however, they show ample power as leapers, and will jump a foot or more. DESCRIPTION OF INSTARS. The young katydid grows slowly for an average period of about 73 days, during which time it molts six times before final emergence as a mature insect. First instar (fig. 4).—Measurements: Greatest breadth of head, mm.; greatest breadth of abdomen, mm.; length of body, mm.; length of pronotum, mm.; length of posterior femur, mm.; length of antenna, 10 mm. Just after issuance from the egg the nymph is of a antenna of pale flesh color. The legs, head, and thorax are irregularly '" ' r marked with small blotches of red, purple, and white; the mph. 11 i • i • i p i Greatly en- abdomen. with about ten longitudinal rows ol minute red :irk'"'1 and while spots, the most conspicuous of which are one low of dark spots on either si
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