Neurisothrips williamsi ( Moulton, 1928 )

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

Neurisothrips williamsi ( Moulton, 1928)

( Figs 38 , 46 )

Described from three females taken on Mt Tantalus, Oahu, the only additional specimens of this species that have been studied are two females from the same site, also three females and two males from a site nearby on Metrosideros (in BPBM). Other published records ( Mound et al. 2016) will require further confirmation, because a single female (in BMNH) from Sophora flowers, at Kilauea, Hawaii, differs from the type specimens in having the antennae slightly longer. Females, but not males, of this yellow species have the tergal antecostal ridges dark ( Fig. 38 ), and the major setae are also dark, with a group of well-developed setae laterally on the tergites. Antennal segments IV–VII are uniformly brown, and segments III and IV have their apices narrowed. The male of this species has unusually large sternal pore plates, similar to those of robbiei ( Fig. 29 ), that occupy almost 50% of the area of each of sternites III–VII.

Figures

FIGURES 33–38. Neurisothrips species. Male tergites VII–IX 33–35: (33) karl sp. n.; (34) robbiei sp. n.; (35) tsuda sp. n. (36) Prosternites karl sp. n. (37) Mouth cone saki sp. n. (38) Tergites williamsi.

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.

FIGURES 24–32. Neurisothrips species. Male sternal pore plates 24–29: (24) antennatus; (25) bidens sp. n.; (26) fran sp. n.; (27) karl sp. n.; (28) robbiei sp. n. [from Santalum]; (29) robbiei sp. n. [from Psychotria]; (30) saki sp. n.. Female sternites 31–32: (31) janis sp. n.; (32) bidens sp. n.