Neurisothrips fran, Mound, 2020

Mound, Laurence A., 2020, Diversity in the Hawaiian endemic genus Neurisothrips (Thysanoptera, Thripidae), Zootaxa 4779 (2), pp. 215-229 : 220

Neurisothrips fran sp. n.

( Figs 6 , 18 , 26 , 44 )

Female. Body colour varying from clear yellow with abdominal segments IX–X light brown, to extensively palest brown with IX and X darker; legs yellow; antennal segments I–III almost uniformly yellow, IV yellow at base ( Fig. 6 ); fore wing pale with faint shaded area around veinal fork; major setae light brown, darkest on tergites IX–X but not dark brown. With the character states of the genus: head with ocellar setae III and po IV long ( Fig. 18 ); po setae pair I present; mouth cone not extending between fore coxae. Pronotum with 3 pairs of anteromarginal setae, none elongate; discal area with about 12 setae; posterior margin with 3 or 4 pairs, median pair longest, posteroangular setae long. Metanotal sculpture weak medially. Tergite I with transverse reticulate sculpture, but III–VIII with scarcely any lines visible even on lateral areas; IV and V each with about 6 discal setae laterally ( Fig. 44 ); X with longitudinal split almost complete.

Measurements (holotype female in microns). Body length 1330. Head, length 110; width across eyes 135; ocellar setae III 65; po setae IV 50. Pronotum, length 120; width 175; pm setae S1 40; pa setae 70. Metanotum median setae length 55. Fore wing length 750. Antennal segments III–VII length 48, 40, 32, 37, 20.

Male. Uniformly paler than female but similar in sculpture and setal lengths; sternites III–VII with slender transverse pore plate ( Fig. 26 ).

Measurements (paratype male in microns). Body length 950. Ocellar setae III 48; po setae IV 35. Pronotal pa setae 55.

Specimens examined. Holotype female, Hawaii, Volcano, Kipuka Ki (19° 25’N, - 155° 17’W), from Pipturus albidus fls, 12.vii.2016 (LAM 6251).

Paratypes: 20 females, 5 males taken with holotype; Hawaii , Volcano National Park , 10 females from Pipturus fls, 6 females 5 males from Pipturus leaves, 9.vii.2016, one female from Pipturus , 15.vii.2016.

Comments. Apart from the pale colour of the body and legs, also the weak sculpture lines on the metanotum and tergites, there is little difference in structure between this species and the dark brown species such as karl and tsuda , although the male pore plates are more slender than in most species ( Fig. 26 ).

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 15–23. Neurisothrips species. Head & pronotum 15–16: (15) antennatus; (16) robbiei sp. n. Head & thorax 17–18: (17) tsuda sp. n.; (18) fran sp. n. Pronotum 19–20: (19) bidens sp. n.; (20) karl sp. n. (21) saki sp. n. pronotum & metanotum. Female tergites VI–X: (22) karl sp. n.; (23) robbiei sp. n.

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.

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.