Neurisothrips multispinus ( Bagnall, 1910 )

Mound, Laurence A., 2020, Diversity in the Hawaiian endemic genus Neurisothrips (Thysanoptera, Thripidae), Zootaxa 4779 (2), pp. 215-229 : 222

Neurisothrips multispinus ( Bagnall, 1910)

( Figs 13 , 42 )

This species was described from four females and one male from Hawaii, Kilauea (Volcano), also one female from Kauai and three females from Molokai. Of these nine specimens, only five (on four slides) remain in the Natural History Museum, London. The lectotype selected by Mound (1968) is a female from Kilauea mounted by Bagnall on the same slide as the male. There are two paralectotype females with the same collection data that were slidemounted from pinned specimens by Mound in 1965. The two females labelled by Bagnall as “co-types” from Molokai, 7.viii.1893 (Perkins 172) are not the same species as the lectotype. These specimens are probably fullawayi , judging from the presence of very long postocular setae IV (70 microns) and ocellar setae pair III, and the long pair of pronotal anteromarginal setae (40 microns) and very long posteroangulars (105 microns). The lectotype is without antennae, and one paralectotype female that is mounted in Hoyers Medium also has no antennae, however it has the basal half of one fore wing and this has no pale area in contrast to fullawayi . The original colour of the lectotype and paralectotype is difficult to determine, due to their condition, but was probably brownish yellow with the sternal antecostal ridges darker. The lectotype is only 1100 microns long, with ocellar setae III about 65 microns, and po setae IV 50 microns. The pronotal pa setae are lost, but one is present on the paralectotype female and this is 100 microns long. The pronotal am setae are no longer than the discal setae, and there are only about six setae on the median area of the pronotum. The small male is paler and appears to be teneral, but it was probably never “yellow”; it has one antenna attached and one detached, and this has segment III 50 microns long. Despite the many specimens of Neurisothrips that have been studied, and the presence in the Bishop Museum collection of slides that bear this name, no specimens have been seen apart from the types indicated that can be identified with any confidence as representing multispinus .

Figures

FIGURES 1–14. Neurisothrips species.Antennae 1–8: (1) antennatus; (2) bidens sp. n.; (3) janis sp. n.; (4) dubautiae; (5) karl sp. n.; (6) fran sp. n.; (7) robbiei sp. n.; (8) tsuda sp. n. Fore wing colour 9–10: (9) fullawayi; (10) saki sp. n. Head 11–14: (11) antennatus; (12) fasciatus; (13) multispinus; (14) saki sp. n.

FIGURES 39–49. Neurisothrips species. Female tergites IV–V 39–46: (39) antennatus; (40) carteri; (41) karl sp. n.; (42) multispinus; (43) robbiei sp. n.; (44) fran sp. n.; (45) tsuda sp. n.; (46) williamsi. Mesonotum, metanotum & tergites I–II 47–48: (47) robbiei sp. n.; (48) antennatus. (49) saki sp. n. female tergites III–V.