Neurisothrips Sakimura 1967
Creators: name: Mound, Laurence A.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Thysanoptera
Thripidae
Neurisothrips

description: Key to species of Neurisothrips
1. Metascutum with longitudinally striate sculpture lines (Fig. 21); tergite X with longitudinal split not developed.... saki sp. n.
-. Metascutum with sculpture reticulate or weakly reticulate with striations only laterally (Figs 17, 48); tergite X with longitudinal split usually complete.................................................................................. 2
2. Abdominal sternites with discal setae (Figs 31, 32)........................................................... 3
-. Abdominal sternites without discal setae (Fig. 30)........................................................... 4
3. Antennal segment III without a prominent constriction at apex (Fig. 3); 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); male with sternal discal setae present medially but pore plates not visible on available paratype ................................................................. janis sp. n.
-. Antennal segment III with apex constricted to short neck (Fig. 2); 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); male pore plates on sternites IV & V about 75x18 microns with 1 or 2 discal setae only lateral to the pore plate (Fig. 25)......................................... bidens 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)................................................................ carteri
-. Metascutal median setae on or very close to anterior margin (Figs 17, 18); antennal colour different; tergal discal setae irregular in arrangement....................................................................................... 5
5. Fore wing pale with brown band medially and at apex.................................................. fasciatus
-. Fore wing almost uniformly dark brown (Fig. 10) 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
-. Ocellar setae III at least 50 microns long, clearly longer than distance between posterior ocelli (Fig. 18); 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); 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
-. Tergites IX–X pale brown, II–VIII uniformly pale yellow to very pale brown (Fig. 44); antennal segments I–III almost uniformly yellow, IV light brown but paler on basal half (Fig. 6); fore wing sometimes with pale brown area near veinal fork; male pore plates about 50 x 5 microns.................................................................. fran sp. n.
9. Female with head bicoloured, anterior half almost yellow, occipital ridge dark brown (Fig. 16); thorax brownish yellow, abdomen light brown, legs yellow to light brown; male brownish yellow with sternal pore plates about 100 x 25 microns................................................................................................. robbiei 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) [pronotum with 15–20 discal setae and 8 anteromarginal setae; fore wing uniformly dark]................................................................. antennatus
-. Antennal segment III no more than 60 microns long, margins convex (Figs 2–8).................................. 11
11. Fore wing with irregular pale area between base of second vein and clavus (Fig. 9); pronotum with median anteromarginal setal pair stout; male as dark brown as female............................................................. fullawayi
-. 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); male paler than female................................................................. multispinus
-. 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); 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)............................ karl 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)............... tsuda sp. n.
description: Published as part of Mound, Laurence A., 2020, Diversity in the Hawaiian endemic genus Neurisothrips (Thysanoptera, Thripidae), pp. 215-229 in Zootaxa 4779 (2) on pages 217-218, DOI: 10.11646/zootaxa.4779.2.4, http://zenodo.org/record/3833491