**3.6.1.1.3 Sensilla coeloconica 3**

236 Gamma Radiation

apex also became flattened, diffuse, less dense, and not pointing .The sensilla measuring

Fig. 4. SEM photomicrographs of irradiated adult antenna of *Rhynchophorus Ferrugineus* with 15 Gy of gamma rays. (A): Enlarged coeloconic1(C1) on the scape, (B): Shrunken sensilla coeloconic 2 (C2) on the pedicel, (C): Shrunken sensilla basiconica 1(B1)on the ventral side between scape and pedicel, (D): Shrunken sensilla coeloconic 3 (C3) on the funicel. [Scale

The sensilla are markedly changed in appearance arising deeply from the socket and partly separated from the edges of the socket. The sensilla appear shrunken and diminished in size. Near to the base of sensilla the processes appear fused with each other, fewer in number and thickened out. Near to the apex the processes are fanned out. The processes arise from the socket then, curve upward giving L- shaped appearance. The sensilla varied

bars indicate 50 µm (A), 10 µm (B, C) and 20 µm (D), respectively]

in length from about 23.8 to 26.3 µm and about 7.5 µm in diameter (Fig.4B).

**3.6.1.1.2 Sensilla coeloconica 2**

about 20.8 µm in length and about 14.8 µm in diameter (Fig.4A).

The sensilla observed very shrink. Most the finger –like processes of the S. coeloconica 3 were fused into blunt tip at apical margin, while in a few number were separated from each other and the separated processes were inflect apically (Fig.4D).The sensilla measures about 22.5 µm in length and about 7.3 µm in diameter.

#### **3.6.1.2 Sensilla chaetica**
