Glyptothrips, Hood, 1912

Lindner, Mariana Flores, Ferrari, Augusto, Lima, Élison Fabrício Bezerra & Cavalleri, Adriano, 2023, Morphological identification of Glyptothrips species (Thysanoptera: Phlaeothripidae), Zootaxa 5375 (1), pp. 31-57 : 56

Identification key to the nine Glyptothrips species recorded from South America

1. Tube at least 1.0x as long as head or longer ( Fig. 19 )......................................................... 2

- Tube shorter, at most 0.9x as long as head ( Fig. 47 ).......................................................... 3

2. Pterothoracic ventrolateral setae thick and capitate ( Fig. 21 ); antennae with 8 elongate segments ( Fig. 23 ), antennal segment IV with 4 sense cones; head more than 1.4x as long as greatest width, genae mostly straight ( Fig. 20 ).............. divergens

- Pterothoracic ventrolateral setae acute, indistinct from discal setae ( Fig. 26 ); antennae with 7 globose segments ( Fig. 26 ), antennal segment IV with 2 or 3 sense cones; head less than 1.35x as long as greatest width, genae curved...... flavescens

3. Head with PO at least 0.8x as long as the dorsal length of the compound eye ( Fig. 32 ).............................. 4

- PO very small or scarcely visible, less than 0.5x as long as the dorsal length of the compound eye ( Fig. 58 )............. 6

4. Pterothoracic ventrolateral setae thin and acute, indistinct from meso-metasternal setae; fore femora without any thick and capitate setae ( Figs 9–10 ); antennal segments II–IV without capitate setae ( Fig. 12 ), antennal segment IV with 3 sense cones................................................................................................ bucca

- Pterothoracic ventrolateral setae thick and capitate, distinct from meso-metasternal setae ( Fig. 33 ); fore femora with at least one thick and capitate setae ( Figs 31 , 63 ); antennal segments II–IV each with at least one pair of capitate setae ( Fig. 35 ), antennal segment IV with 4 sense cones........................................................................... 5

5. Legs mostly brown ( Figs 31, 33 ); antennal segments III and IV bicolored, yellow on thinner basal area and brown elsewhere ( Fig. 35 ); PO setae straight ( Fig. 32 ); males with a large pore plate covering most of sternite VIII ( Fig. 36 )........ fuscipes

- Legs mostly yellow ( Figs 62–63 ); antennal segment III mostly yellow, much paler than the mostly brown antennal segment IV ( Fig. 64 ); PO setae curved; males with a slender transverse pore plate on sternite VIII....................... silvaticus

6. Antennal segment IV with 2 sense cones; head less than 1.2 times as long as greatest width, lateral margins greatly curved into a constrict basal neck ( Fig. 67 ); males with a transverse pore plate on abdominal sternite VIII, anterior margin concave, not covering the whole sternite ( Figs 70–72 )............................................................ subcalvus

- Antennal segment IV with 4 sense cones; head at least 1.25 times as long as greatest width, lateral margins straight without a constrict basal neck ( Figs 38 , 48 , 58 ); males with a large pore plate covering most of abdominal sternite VIII ( Fig. 40 )..... 7

7. Head dorsal sculpture transversely elongate ( Fig. 48 ); tube less than 0.7 times as long as head ( Fig. 47 )......... longiceps

-. Head dorsal sculpture with equiangular reticulation ( Figs 38 , 58 ); tube about 0.8–0.9 times as long as head ( Figs 37 , 57 )... 8

8. Head about 1.25–1.35x as long as greatest width ( Fig. 38 ).............................................. hylaeus

- Head about 1.45–1.55x as long as greatest width ( Fig. 58 )............................................. saltuarius

Figures

FIGURES 19–24. Glyptothrips divergens, female and male paratypes. (19) Female. (20) Head and pronotum; PO—postocular setae. (21) Thorax and abdominal segments I–III; VL—ventrolateral setae. (22) Abdominal segments VI–X. (23) Antenna. (24) Male pore plate on abdominal sternite VIII, a transverse ellipse medially.

FIGURES 47–50. Glyptothrips longiceps, female holotype. (47) Female. (48) Head, thorax and abdominal segments I–III; fore tarsal tooth indicated by arrow head. FT—femoral thickened setae. (49) Abdominal segments VI–X. (50) Antenna.

FIGURES 25–27. Glyptothrips flavescens, female holotype and female paratype. (25) Female. (26) Head, thorax and abdominal segments I–IV. (27) Abdominal segments VI–X.

FIGURES 31–36. Glyptothrips fuscipes, female holotype and male paratype. (31) Female. (32) Head, pro- and mesonotum.(33) Thorax, mid and hind legs, and abdominal segments I–IV. (34) Abdominal segments V–X. (35) Antenna. (36) Male pore plate on abdominal sternite VIII, a large plate covering most of the sternite. ACS—antennal capitate setae; FT—femoral thickened setae; VL—ventrolateral setae.

FIGURES 57–60. Glyptothrips saltuarius, female holotype. (57) Female. (58) Head, thorax and abdominal segments I–III. (59) Abdominal segments VII–X. (60) Antenna.

FIGURES 9–13. Glyptothrips bucca, female holotype and male allotype. (9) Female. (10) Head, thorax, and abdominal segments I–III. (11) Abdominal segments VI–X. (12) Antenna. (13) Male pore plate on abdominal sternite VIII, a circular plate medially.

FIGURES 61–65. Glyptothrips silvaticus, female holotype. (61) Female. (62) Head, thorax and pelta; VL—ventrolateral setae. (63) Foreleg; FT—femoral thickened setae. (64) Antenna. (65) Abdominal segments VII–X.

FIGURES 66–73. Glyptothrips subcalvus, female holotype, female paratype, and male non-types. (66) Female. (67) Head and forelegs. (68) Antenna. (69) Thorax and pelta; VL—ventrolateral setae. (70–72) Male pore plate on abdominal sternite VIII, showing variation in size and form between different males. (73) Abdominal segments VI–X.

FIGURES 37–40. Glyptothrips hylaeus, male holotype. (37) Male. (38) Head, thorax and abdominal segments I–III. (39) Abdominal segments VII–X. (40) Male pore plate on abdominal sternite VIII, a large plate covering most of the sternite.