• Larva Of Caribbean Fruit Flies

• Larva Of Caribbean Fruit Flies



2 years ago

~0.9 mins read

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The larva of caribbean fruit flies is white and has the conventional fruit fly larval structure (cylindrical, elongated, anterior end often slightly recurved ventrally and with mouth hooks, flattened caudal end), but there are 10 visible fusiform patches; the last instar is around 8 to 10 mm in length. Eight anterior buccal carinae are typical. The cephalo-pharyngeal skeleton has an increased dorsal bridge, a longer pharyngeal plate than the dorsal wing plate, and a long pharyngeal support.

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The mouth hook is relatively broad (length 2 X breadth), and the hypostome is almost equally wide. There are 12 to 13 tubules in the anterior spiracles, which are slightly asymmetrical and have a median depression. Caudal end with pairs of dorsal (D1 & D2) and intermediate (I1 & I2) papillules, as well as a distinct I3; prominent L1; indistinct V1 (rarely somewhat prominent); D1 & D2 acutely angled (ca.

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45°) and closer together than 11 & 12 (ca. 1/2 distance); I1 & I2 almost in a horizontal line (ca. 10-15°); I1, I3, and L Most interspiracular processes (hairs) are typically not branched distally, and posterior spiracles are extended (about 3-3.5 X breadth), with dorsal two oriented upward and ventral one angled downward on either side of the midline. Anal lobe is usually complete. It is challenging to identify A. suspensa and other Anastrepha species accurately as larvae.

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