Issue Description


Authors : Vaishali J. Badwaik and Deepak D. Barsagade

Page Nos : 193-207

Description :
The mouthparts of soapberry bug, Leptocoris augur is piercing and sucking type modified into long tube called as proboscis or rostrum. The rostrum is made up of long thin stylets. These stylets are modified mandibles and maxillae, which fits together to form canals. The stylets are wrapped in the labium tube. The stylets of maxillae are sharply pointed while stylets of mandibles have barbed tip to penetrate the host plant. The labrum (LAB) is on antero- ventral side of the labium (LBI), broader towards the anterior end and tapering towards the posterior end which is inserted into the labial groove (LG). The ventro-lateral position of anterior end of labrum consist of linearly arrange sensilla trichoidea (ST-I, ST-II) and sensilla trichoidea curvata (STC). The outer surface of labium consist of sensilla trichoidea (ST-I, ST-II), sensilla trichodea curvata (STC) and sensilla basiconica (SB). The tip of labium have sensilla trichoidea (ST), sensilla basiconica (SB-I, SB-II), sensory peg (PEG) and maxillary stylets (MS). Transverse section through segments of labium shows interlocking of maxillae and mandibles forming food canals and salivary canals.

Date of Online: 30 Sep 2014