New Neotropical Haplothripini (Thysanoptera: Phlaeothripidae) with a key to Central and South American genera Author Cavalleri, Adriano Author Lindner, Mariana F. Author Mendonça Jr, Milton de S. text Journal of Natural History 2016 2016-01-05 50 1389 1410 http://dx.doi.org/10.1080/00222933.2015.1113316 journal article 10.1080/00222933.2015.1113316 1464-5262 5206276 10E53C17-530E-4737-A7B9-D111956C7C22 Haplothrips Amyot and Serville Type species: Phloeothrips albipennis Burmeister This is the third largest genus within Thysanoptera , comprising more than 250 species worldwide (ThripsWiki 2015). Two subgenera are informally recognised: Haplothrips , in which species bear duplicated cilia on the fore wing; and Trybomiella , which lack such setae ( Mound and Zapater 2003 ). This genus is related to Karnyothrips , but antennal segment IV bears four sense cones and the fore tarsi lack the typical forwardly directed curved tooth found in Karnyothrips . Apparently all males lack sternal pore plates, except one species described below which bears a small pore plate on sternite VIII . Most Haplothrips species breed in flowers, including Poaceae florets, although a few species are predatory on other arthropods ( Mound and Minaei 2007 ). This genus is particularly diverse in the temperate areas of the northern hemisphere, and nine species are now reported from Central and South America ( Table 1 ). A key to these species is provided below and comments on these taxa can be found in Mound and Marullo (1996) . Key to Haplothrips species from Central and South America (adapted from Mound and Marullo 1996 ) 1. Fore wings without duplicated cilia............................................................................................. 2 − Fore wings with duplicated cilia ( Figure 3C )............................................................................ 5 2. Four pairs of major pronotal setae, with ml reduced to about the same size as discal setae ( Figure 3E ) ................................................................................................................................... 3 − All five pairs of pronotal major setae well developed ( Figure 3F ) ................................. 4 3. Maxillary stylets about 0.4 of head width apart...................................................... robustus − Maxillary stylets about 0.6 of head width apart ( Figure 3E ).................................. fiebrigi 4. Postocular setae slightly longer than the dorsal length of compound eyes; tergite IX setae S1 weakly capitate.............................................. .............................................. heliotropica − Postocular setae about 0.5 to 0.9 of dorsal length of compound eyes; tergite IX setae S1 acute.................................................................... .................................................................... trellesi 5. All five pairs of major pronotal setae well developed; S1 setae on abdominal tergite IX acute and slightly longer than tube.......................................................................... gowdeyi − Pronotum with four or fewer pairs of major setae well developed; at least am setae reduced ( Figure 2C ); S1 setae on tergite IX blunt and shorter than tube ......... ........ 6 6. Pronotal setae am, aa and ml reduced to about the same size as discal setae; postocular setae usually not reaching posterior margin of compound eyes................. ............................................................................................................................................... leucanthemi − Pronotal setae aa and ml well developed; postocular setae longer.............................. 7 7. Antennal segment III with two sense cones; postocular setae capitate at apex; males with a small circular pore plate on sternite VIII ( Figure 3D )........ dissociatus sp. nov. − Antennal segment III with one sense cone; postocular setae acute; males without pore plate on sternite VIII................................................................................................................. 8 8. Maxillary stylets about one third of head width apart; maxillary bridge present......... ...................................................................................................................................................... graminis − Maxillary stylets wider apart; maxillary bridge not visible..................... ..................... saidi