PLATE 3.13. DRONE CERVIX

TOP Dorsolateral hair plate contacting the back of the head (right and middle arrows in inset). These forty trichoid sensilla, seemingly in rows at this viewing angle, are cervical in origin while the branched hairs are from the thoracic episternum. ( x 288)

TOP INSET. Survey of the whole, stretched, dorsal cervix. (x 88)

BOTTOM. Dorsolateral cervical ridge (left arrow in inset, top micrograph) extending vertically through the center of the field. The lower extremity of the dorsolateral hair plate is at the top of the field (the head is to the left). (x 360)