title: Morphological diversity of the labial sensilla of phytophagous and predatory Pentatomidae (Hemiptera: Heteroptera), with reference to their possible functions.
abstract: Sensory structure on the labial surface of five genera of Pentatomidae (Hemiptera: Heteroptera) belonging to two subfamilies i.e. Asopinae and Pentatominae have been studied using Scanning Electron Microscopy. Three representatives of the subfamily Pentatominae (phytophagous)-Dolycoris indicus (Stal), Plautia crossota (Dallas) and Piezodorus hybneri (Gmelin) and two of Asopinae (predatory)-Perillus bioculatus (Fabricius) and Eocanthecona furcellata (Wolff) were studied to morphologically characterize and compare the sensory structures present on the labium. Six types of labial sensilla were found on their labial tip and surface. The labial sensilla identified were sensilla peg (SP), basiconica (SB), campaniformia (SCa), chaetica (SCh), styloconica (SStc) and trichodea (ST). Their possible functions were discussed relating to morphology and location. A new form of sensilla basiconica was also observed in D. indicus. Sensilla styloconica were restricted only to the predatory pentatomid bugs. Cuticular projections (Cpr) on the sensorial region of the studied pentatomids were also observed along with labial cuticular pores.
authors.affiliation: Network Project on Insect Biosystematics, Division of Entomology, Indian Agricultural Research Institute, New Delhi, 110012, India.; Email: shama_parven@yahoo.co.in.
authors.forename: Shama
authors.initials: S
authors.lastname: Parveen
authors.affiliation: Network Project on Insect Biosystematics, Division of Entomology, Indian Agricultural Research Institute, New Delhi, 110012, India.; Email: unknown.
authors.forename: Ayashaa
authors.initials: A
authors.lastname: Ahmad
authors.affiliation: Department of Zoology, Faculty of Biology and Environmental Protection, University of Silesia, Bankowa 9, PL 40-007 Katowice, Poland; Email: unknown.
authors.forename: Jolanta
authors.initials: J
authors.lastname: Brożek
authors.affiliation: Network Project on Insect Biosystematics, Division of Entomology, Indian Agricultural Research Institute, New Delhi, 110012, India.; Email: unknown.
authors.forename: Vilayanoor Venkataraman
authors.initials: VV
authors.lastname: Ramamurthy
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D057506:Arthropod Antennae / Q000033:anatomy & histology / Q000254:growth & development; D049628:Body Size; D005260:Female; D020062:Heteroptera / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development / Q000502:physiology; D008297:Male; D009929:Organ Size; D011235:Predatory Behavior; D058618:Sensilla / Q000033:anatomy & histology / Q000254:growth & development*