Neurisothrips, Sakimura, 1967

Mound, Laurence A., 2020, Diversity in the Hawaiian endemic genus Neurisothrips (Thysanoptera, Thripidae), Zootaxa 4779 (2), pp. 215-229 : 217-218

publication ID	https://doi.org/ 10.11646/zootaxa.4779.2.4
publication LSID	lsid:zoobank.org:pub:7EB0A1A9-3F04-4ADB-9387-494010AFECFA
DOI	https://doi.org/10.5281/zenodo.3851265
persistent identifier	https://treatment.plazi.org/id/0392C25E-FFEF-FFF1-DA9A-FA5221812C77
treatment provided by	Plazi
scientific name	Neurisothrips
status

Treatment

Key to species of Neurisothrips View in CoL

1. Metascutum with longitudinally striate sculpture lines ( Fig. 21 View FIGURES 15–23 ); tergite X with longitudinal split not developed.... saki View in CoL sp. n.

-. Metascutum with sculpture reticulate or weakly reticulate with striations only laterally ( Figs 17 View FIGURES 15–23 , 48 View FIGURES 39–49 ); tergite X with longitudinal split usually complete.................................................................................. 2

2. Abdominal sternites with discal setae ( Figs 31, 32 View FIGURES 24–32 )........................................................... 3

-. Abdominal sternites without discal setae ( Fig. 30 View FIGURES 24–32 )........................................................... 4

3. Antennal segment III without a prominent constriction at apex ( Fig. 3 View FIGURES 1–14 ); ocellar setae pair III and po setae pair IV less than 25 microns long, shorter than distance between hind ocelli; pronotal pa setae about 35 microns long; major setae light brown; sternites V & VI with discal setae irregularly scattered ( Fig. 31 View FIGURES 24–32 ); male with sternal discal setae present medially but pore plates not visible on available paratype ................................................................. janis View in CoL sp. n .

-. Antennal segment III with apex constricted to short neck ( Fig. 2 View FIGURES 1–14 ); ocellar setae pair III and po setae pair IV 40 microns long, slightly longer than distance between hind ocelli; pronotal pa setae at least 60 microns long; major setae dark brown; sternites V & VI with discal setae in an irregular transverse row ( Fig. 32 View FIGURES 24–32 ); male pore plates on sternites IV & V about 75x18 microns with 1 or 2 discal setae only lateral to the pore plate ( Fig. 25 View FIGURES 24–32 )......................................... bidens View in CoL sp. n.

4. Metascutal median setae arising well posterior to anterior margin; antennal segments I–II white, III–VII brown; tergal discal setae arranged in a single row ( Fig. 40 View FIGURES 39–49 )................................................................ carteri View in CoL

-. Metascutal median setae on or very close to anterior margin ( Figs 17, 18 View FIGURES 15–23 ); antennal colour different; tergal discal setae irregular in arrangement....................................................................................... 5

5. Fore wing pale with brown band medially and at apex.................................................. fasciatus View in CoL

-. Fore wing almost uniformly dark brown ( Fig. 10 View FIGURES 1–14 ) or uniformly pale............................................. 6

6. Body largely yellow or with abdomen pale brown............................................................ 7

-. Body brown to dark brown.............................................................................. 9

7. Ocellar setae III no more than 35 microns long, shorter than distance between posterior ocelli; fore wing pale..... dubautiae View in CoL

-. Ocellar setae III at least 50 microns long, clearly longer than distance between posterior ocelli ( Fig. 18 View FIGURES 15–23 ); fore wing pale or with weak shading at veinal fork............................................................................. 8

8. Tergites VIII–X uniformly yellow but IV–VI with dark antecostal ridge ( Fig. 38 View FIGURES 33–38 ); antennal segment I white, II brownish, III yellow on basal half, IV almost completely brown; fore wing uniformly pale; male pore plates about 100 x 25 microns................................................................................................... williamsi View in CoL

-. Tergites IX–X pale brown, II–VIII uniformly pale yellow to very pale brown ( Fig. 44 View FIGURES 39–49 ); antennal segments I–III almost uniformly yellow, IV light brown but paler on basal half ( Fig. 6 View FIGURES 1–14 ); fore wing sometimes with pale brown area near veinal fork; male pore plates about 50 x 5 microns.................................................................. fran View in CoL sp. n.

9. Female with head bicoloured, anterior half almost yellow, occipital ridge dark brown ( Fig. 16 View FIGURES 15–23 ); thorax brownish yellow, abdomen light brown, legs yellow to light brown; male brownish yellow with sternal pore plates about 100 x 25 microns................................................................................................. robbiei View in CoL sp. n.

-. Female head as uniformly dark brown as rest of body; male pore plates more slender............................... 10

10. Antennal segment III almost parallel sided, 75 microns long ( Fig. 1 View FIGURES 1–14 ) [pronotum with 15–20 discal setae and 8 anteromarginal setae; fore wing uniformly dark]................................................................. antennatus View in CoL

-. Antennal segment III no more than 60 microns long, margins convex ( Figs 2–8 View FIGURES 1–14 ).................................. 11

11. Fore wing with irregular pale area between base of second vein and clavus ( Fig. 9 View FIGURES 1–14 ); pronotum with median anteromarginal setal pair stout; male as dark brown as female............................................................. fullawayi View in CoL

-. Fore wing without a sub-basal pale area (except for the subcircular window); pronotum with 2 pairs of equally small anteromarginal setae....................................................................................... 12

12. Tergites IV–V of female each with lateral group of about 10 robust discal setae of which 2 pairs are close to the antecostal ridge ( Fig. 42 View FIGURES 39–49 ); male paler than female................................................................. multispinus View in CoL

-. Tergites IV–V of female each with lateral group of about 6–8 discal setae but with no setae close to antecostal ridge ( Figs 41, 45 View FIGURES 39–49 ); male as dark brown as female....................................................................... 13

13. Mid and hind tibiae uniformly dark brown in contrast to sharply yellow tarsi; fore wing dark; pronotum with about 4–6 discal setae, 2 pairs of posteromarginal setae with S1 scarcely longer than S2 ( Fig. 20 View FIGURES 15–23 )............................ karl View in CoL sp. n.

-. Mid and hind tibiae light brown with apex paler and scarcely different in colour from tarsi; fore wing pale to light brown; pronotum with 10–20 discal setae, 3 or 4 pairs of posteromarginal setae with S1 elongate ( Fig. 17 View FIGURES 15–23 )............... tsuda View in CoL sp. n.