Heterothrips

Pereyra, Veronica & Cavalleri, Adriano, 2012, The genus Heterothrips (Thysanoptera) in Brazil, with an identification key and seven new species, Zootaxa 3237, pp. 1-23 : 4-5

Key to females of Heterothrips species from Brazil

1. Abdominal tergites, at least laterally, with posteromarginal craspeda bearing a fringe of microtrichia (Figs 2, 17, 19)....... 2

-. Abdominal tergites without craspeda, but with a fringe of independent posteromarginal microtrichia (Fig. 1)............. 6

2. Abdominal tergal craspeda lobed and interrupted medially on II–VI, but with independent microtrichia medially ( Figs 17, 19 ).................................................................................................... 3

-. Abdominal tergal craspeda entire and continuous across II–VI ( Figs 44–45 )....................................... 5

3. Antennal segment III with pedicel elongate, about 2.5 times as long as wide ( Fig. 15–16 ); abdominal sternites III–VII with 2 or 3 pairs of discal setae ( Fig. 18 ).............................................................. pedicellatus sp.n.

-. Antennal segment III with pedicel less than 2.0 times longer than wide; abdominal sternites III–VII without discal setae.... 4

4. Fore wing uniformly brown or strongly shaded ( Fig. 21 ); posteromarginal craspeda not lobed nor bearing short teeth ( Figs 22– 23 ); all femora extensively pale.............................................................. savanicus sp.n.

-. Fore wing brown but with a sub-basal pale area ( Fig. 29 ); posteromarginal craspeda with irregular lobes bearing short teeth ( Figs 31–32 ); all femora largely brown.......................................................... obscurus sp.n.

5. Median area of abdominal tergites with few lines of reticulation bearing sparse and fine microtrichia ( Figs 44, 47 ); mid and hind tibiae mostly dark...................................................................... australis sp.n.

-. Median area of abdominal tergites without reticulation or microtrichia ( Fig. 45 ); mid and hind tibiae pale ( Fig. 41 ) marginatus

6. Abdominal tergite VI posteromarginal fringe of microtrichia widely interrupted ( Fig. 52 )....................... flavitibia

-. Abdominal tergite VI posteromarginal fringe continuous....................................................... 7

7. Body uniformly brown, abdomen sometimes paler in teneral specimens; antennal segment I brown; ocellar setae I absent or present.............................................................................................. 8

-. Body coloration different, largely yellow or sharply bicolored; antennal segment I pale or slightly shaded brown; ocellar setae I always absent...................................................................................... 17

8. Antennal segment III basal stem divided into 5 or 6 parts ( Fig. 53 ); head about as wide as long............... angusticeps

-. Antennal segment III basal stem not so divided; head at least 1.3 times as wide as long.............................. 9

9. Fore wing largely pale, usually with a small dark area at extreme apex........................................... 10

-. Fore wing largely dark or strongly shaded, usually with a sub-basal pale area..................................... 11

10. Antennal segments III–IV with two rows of sensorial pores ( Fig. 57 ); metapleura with several rows of fine microtrichia................................................................................................... peixotoa

-. Antennal segments III–IV with a single row of sensorial pores ( Figs 62–63 ); metapleura without rows of microtrichia.......

........................................................................................ albipennis sp.n. 11. Fore wing uniformly dark ( Fig. 70 ); postocular setal pair III longer than posterior ocellus ( Fig. 69 ); antennal segments III–IV pale ( Fig. 72 )................................................................................... spinosus

-. Fore wing with a sub-basal pale area; postocular setal pair III not longer than posterior ocellus; antennal segments III–IV color different, IV slightly shaded............................................................................ 12

12. Abdominal sternites III–VII without discal setae ( Fig. 79 ); ocellar setae I absent...................... paulistarum sp.n.

-. Abdominal sternites III–VII with about 3 pairs of discal setae; ocellar setae I present............................... 13

13. Pronotum smooth, without conspicuous sculpture ( Fig. 85 ); abdominal tergite IX about 1.5 times as long as X ( Fig. 82 )................................................................................................... varitibia

-. Pronotum clearly sculptured; abdominal tergites IX and X subequal in length..................................... 14

14. Antennal segment IV less than 1.5 times as long as wide; pronotum with reticulate sculpture ( Fig. 87 ) sanctaecatharinae sp.n.

-. Antennal segment IV more than 1.8 times as long as wide; pronotum closely striate................................ 15

15. Antennal segment III about 2.5 times as long as wide; antennal segment V yellow in basal third ( Fig. 90 )............ condei

-. Antennal segment III more than 2.7 times as long as wide; antennal segment V uniformly brown..................... 16

16. Antennal segment IV extensively brown ( Fig. 94 ); mid and hind tibiae largely brown with base and apical third yellow or only apical third yellow ( Fig. 93 ); abdominal sternites III–VI with discal setae arising in a continuous row across median area................................................................................................... striatus

-. Antennal segment III–IV pale with dark apex ( Fig. 98 ); mid and hind tibiae extensively yellow, slightly shaded medially; abdominal sternites III–VI with discal setae present only on lateral thirds................................. brasiliensis

17. Fore wing not white basally; body mostly pale; antennal segment III less than 2.0 times as long as wide............ flavidus

-. Fore wing clearly paler sub-basally; body bicolored; antennal segment III 2.5 or more times as long as wide............. 18

18. Body sharply bicolored ( Fig. 102 ), abdominal tergites III–VIII yellow; pronotum brown, without conspicuous reticulation ( Fig. 105 )....................................................................................... bicolor

-. Body extensively yellow ( Fig. 108 ); abdominal tergites III–VI yellow laterally with brown markings medially ( Fig. 109 ); pro- notum yellow, with cross-striate reticulation......................................................... decoratus

Figures

FIGURES 11 – 20. Brazilian Heterothrips. H. pedicellatus sp. n. female 11 – 20: 11. Dorsal view; 12. Mesonotum and metanotum; 13. Head; 14. Pronotum; 15. Antennal segments II – IV; 16. A ntenna; 17. Abdominal tergites IV – VI; 18. Abdominal sternites IV – VI; 19. Abdominal tergites I – III; 20. Fore wing.

FIGURES 40 – 49. Brazilian Heterothrips. H. australis sp. n. female 40, 42 – 44, 46 – 49: 40. Dorsal view; 42. Antenna; 43. Antennal segments III – IV; 44. Abdominal tergites IV – VI; 46. Mesonotum and metanotum; 47. Abdominal tergites I – VI; 48. Abdominal sternites II – VI; 49. Head and pronotum. H. marginatus female 41, 45: 41. Dorsal view; 45. Abdominal tergites IV – V.

FIGURES 21 – 28. Brazilian Heterothrips. H. savanicus sp. n. female 21 – 28: 21. Dorsal view; 22. Abdominal tergites I – VI; 23. Abdominal sternites II – VI; 24. Mesonotum and metanotum; 25. Antenna; 26. Antennal segments III – IV; 27. Head; 28. Pronotum.

FIGURES 29 – 39. Brazilian Heterothrips. H. obscurus sp. n female 29 – 38: 29. Dorsal view; 30. Mesonotum and metanotum; 31. Abdominal tergites I – V; 32. Abdominal tergites V – VIII; 33. Abdominal sternites II – VI; 34. Head; 35. Ventral view of the head (arrow indicates interantennal projection); 36. Pronotum; 37. Antennal segments III – IV; 38. Antenna. H. obscurus sp. n. male: 39. Dorsal view.

FIGURES 50 – 58. Brazilian Heterothrips. H. flavitibia female 50 – 52: 50. Dorsal view; 51. Antenna; 52. Abdominal tergites VI – VIII. H. angusticipeps 53 – 54: 53. Female antennal segment III – IV; 54. Male abdominal sternites VII – VIII pore plates. H. peixotoa female 55 – 58: 55. Fore wing; 56. Head; 57. Antenna; 58. Dorsal view.

FIGURES 59 – 67. Brazilian Heterothrips. H. albipennis sp. n. female 59 – 66: 59. Head; 60. Pronotum; 61. Mesonotum and metanotum; 62. Antenna; 63. Antennal segment III – IV; 64. Fore wing; 65. Abdominal tergites V – VI; 66. Hind leg. H. albipennis sp. n. male: 67. Abdominal sternites VI – VIII.

FIGURES 68 – 72. Brazilian Heterothrips. H. spinosus female 68 – 72: 68. Dorsal view; 69. Head and pronotum; 70. Fore wing; 71. Mesonotum and metanotum; 72. Antenna.

FIGURES 73 – 81. Brazilian Heterothrips. H. paulistarum sp. n. female 73, 75 – 80: 73. Dorsal view; 75. Antenna; 76. Antennal segments III – IV; 77. Head; 78. Pronotum; 79. Abdominal sternites II – VI; 80. Mesonotum and metanotum. H. paulistarum sp. n. male 74, 81: 74. Dorsal view; 81. Abdominal tergites IX – X.

FIGURES 82 – 92. Brazilian Heterothrips. H. varitibia female 82, 85: 82. Dorsal view; 85. Pronotum. H. sanctaecatharinae sp. n. female 83 – 84, 86 – 88: 83. Dorsal view; 84. Mesonotum and metanotum; 86. Head; 87. Pronotum; 88. Antennal segment III. H. condei female 89 – 92: 89. Dorsal view; 90. Antenna; 91. Mesonotum and metanotum; 92. Abdominal sternites IV – VI setae.

FIGURES 93 – 101. Brazilian Heterothrips. H. striatus female 93 – 96: 93. Dorsal view; 94. Antenna; 95. Mesonotum and metanotum; 96. Pronotum. H. brasiliensis female 97 – 100: 97. Dorsal view; 98. Antenna; 99. Head and pronotum; 100. Mesonotum and metanotum. H. flavidus female: 101. Antenna.

FIGURES 102 – 109. Brazilian Heterothrips. H. bicolor female 102, 104 – 106: 102. Dorsal view; 104. Antenna; 105. Pronotum; 106. Mesonotum and metanotum. H. bicolor male 103, 107: 103. Dorsal view; 107. Abdominal tergites IX – X. H. decoratus female 108 - 109: 108. Dorsal view; 109. Abdominal tergites I – VI.