Descriptions of Immature Stages of Three Species of Laccocorinae (Hemiptera: Heteroptera: Naucoridae) from India
2014
Sundar, S. | Sites, Robert W. | Arunachalam, M.
Adults and first through fifth instars of three species of Naucoridae in the subfamily Laccocorinae were collected from localities in Tamil Nadu and Karnataka states in southern India. Specifically, Heleocoris indicus (Montandon) and Heleocoris vicinus (Montandon) were collected from the vegetated margins of streams that contained no congeners. Pogonocaudina indica Sites & Zettel was collected from vertical rock surfaces at the type locality. All instars of these three species are described here. First instars of both species of Heleocoris are immaculate, whereas subsequent instars are densely punctate. The first instar of P. indica has pronounced dorsal tubercles with stout spines, whereas subsequent instars lack these structures. All instars of P. indica have a deep terminal cleft and dense fringe of hairs on the perimeter of the posterior abdominal segments. Second through fifth instars of these three species can be distinguished based on relative length of the mesonotal wing pad compared with the exposed part of the metanotal lateral margin.
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