Taxonomic review of jironiella retana & soto 2007, revalidated from synonymy under haplothrips, and jironiella saidi retana & soto 2007 restored from haplothrips (Phlaeothripidae) Bhatti J S*, Retana-Salazar Axel P1, Soto-Rodríguez Gerardo A1 Ex. Department of Zoology, University of Delhi, New Delhi, 110007 1Centro de Investigación én Estructuras Microscópicas (CIEMIC), Ciudad de la Investigación, Universidad de Costa Rica, 2060, San José, Costa Rica *Email: bhatti.js@gmail.com (corresponding author)
Online published on 18 April, 2020. Abstract Jironiella Retana and Soto 2007, with a single species J. saidi Retana and Soto 2007, was described from Costa Rica, differing from Haplothrips by the absence of maxillary bridge. Literature until now provides a confusing picture of the taxonomy of Jironiella as well as its species. Goldarazena, Mound and zur Strassen (2008) synonymized Jironiella under Haplothrips Amyot and Serville 1843 and treated J. saidi as synonym of the North American species Haplothrips graminis Hood 1912. Soto (2011) reverted Jironiella back to its status as a valid genus and its species saidi to its original combination as a valid species. Subsequently, Thrips Wiki (most recently accessed 2019; not possible to ascertain the date when this action was taken in treated Jironiella similarly as synonym of Haplothrips, and J. saidi is listed as “Haplothrips (Haplothrips) saidi”. As a result of the present study, Jironiella is now removed from synonymy under Haplothrips and revalidated again as a separate genus based on its original characterization. And, J. saidi is restored again to its original combination; both actions had already been taken by Soto (2011). As now interpreted, Jironiella includes only a single species. It lacks a maxillary bridge, and is not related to Haplothrips graminis, under which it was initially synonymized, nor to Haplothrips. As originally defined (Retana and Soto, 2007), it is distinguished from Haplothrips by the absence of a maxillary bridge. Jironiella is related to Bamboosiella Ananthakrishnan 1960, which also lacks a maxillary bridge. However, in Jironiella the maxillary stylets are not restricted to the proboscis (= “mouth cone”) but extend forward to about one-third of the dorsal head length, whereas in Bamboosiella the maxillary stylets are restricted to the proboscis, or only just slightly extend into the head capsule. Incidental to this study, Haplothrips humilis Hood 1914 from Panama, synonymized under H. graminis Hood by Mound and Marullo (1996), is now revalidated as a good species, based on characters given in Hood's original description. Top Keywords Jironella, generic status, J. saidi, Costa Rica, Haplothrips graminis, synonymy, restored, Bamboosiella, maxillary stylets, Haplothrips humilis, valid species. Top |