Enneothrips enigmaticus Lima et al.

Vieira, Daniel Elizeu, O’Donnell, Cheryle A. & Lima, Élison Fabrício B., 2024, Enneothrips Hood: a Neotropical genus of leaf-feeding thrips (Thysanoptera: Thripidae) with generic diagnosis and four new species, Zootaxa 5397 (4), pp. 563-577 : 571

Enneothrips enigmaticus Lima et al.

( Figs 4, 5 , 19, 29 , 39 , 49 , 66 )

Enneothrips enigmaticus Lima, Alencar, Nanini, Michelotto & Correa, 2022: 5 .

Comments. The species is known as peanut thrips in Brazil. It is the key pest of peanuts in South America and is strictly host specific, restricted to Arachis spp. ( Lima et al. 2022). It has been recorded in Brazil, Argentina and Paraguay and is newly recorded here in Peru. This species was misidentified as E. flavens until 2022 ( Lima et al. 2022). Contrary to E. flavens , E. enigmaticus has the body uniformly brown ( Fig. 4 ), metanotal reticles without internal markings ( Fig. 39 ), and lines of sculpture on mesonotum and lateral thirds of abdominal tergites spaced further apart. It is also unique among Enneothrips in having brachypterous males ( Fig. 5 ). While similar to E. flaviceps , it can be distinguished by the characters in the key provided above.

Material studied. Female holotype: Brazil. S„o Paulo: Jaboticabal, UNESP-FCAV, on Arachis hypogaea , 12.vii.2016 (J.R. Lima) ( CHNUFPI). Paratypes. Four males and four females collected with holotype. Additional specimens. Brazil. S„o Paulo: Anitápolis, Jaboticabal, Santa Adélia, Sorocaba, Itápolis and Pindorama, 2014–2022, 23 females and three males collected with the holotype (E.F.B Lima, M. Michelotto, JR P. Lima & BB Batista col.) ( CHNUFPI); Acre: Rio Branco, on Peanut , vii.2019, one female ando ne male (E.F.B Lima col.) ( CHNUFPI) ; Paraná: Maringá, on Peanut , 31.i.2022, two females (O. Ferrari col.) ( CHNUFPI) ; Minas Gerais: Uberlândia, on Potato , 30.vi.2020, one female (G. Berchieri col.) ( CHNUFPI) . Paraguay. Asunción on Peanut , 3.ii.2012, two females (O. Arias col.) ( CHNUFPI) . Peru: Tingo Maria , on peanut foliage, 8.ix.1948, four females (E.J.Hambleton) ( USNM and CHNUFPI)

Figures

FIGURES 1–16. Enneothrips species. amazonicus sp. n. (1) female, (2) male; atlanticus sp. n. (3) female; enigmaticus (4) female, (5) male; flavens (6) female, (7) male; flaviceps (8) female, (9) male; fulbrightae sp. n. (10) female, (11) male; fuscus (12) female; gustaviae (13) female, (14) male; manauara sp. n. (15) female; subtilis (16) female.

FIGURES 17–34. Enneothrips species. Antenna 17–26: (17) amazonicus sp. n.; (18) atlanticus sp. n.; (19) enigmaticus; (20) flavens; (21) flaviceps; (22) fulbrightae sp. n.; (23) fuscus; (24) gustaviae; (25) manauara sp. n.; (26) subtilis. Head and pronotum 27–34: (27) amazonicus sp. n.; (28) atlanticus sp. n.; (29) enigmaticus; (30) flavens; (31) flaviceps; (32) fulbrightae sp. n.; (33) fuscus; (34) gustaviae.

FIGURES 35–43. Enneothrips species. Head and pronotum 35–36: (35) manauara sp. n.; (36) subtilis. Meso- and metanotum 37–43: (37) amazonicus sp. n.; (38) atlanticus sp. n.; (39) enigmaticus; (40) flavens; (41) flaviceps; (42) fulbrightae sp. n.; (43) fuscus.

FIGURES 44–59. Enneothrips species. Meso- and metanotum 44–46: (44) gustaviae; (45) manauara sp. n.; (46) subtilis. Fore wing 47–56: (47) amazonicus sp. n.; (48) atlanticus sp. n.; (49) enigmaticus; (50) flavens; (51) flaviceps; (52) fulbrightae sp. n.; (53) fuscus; (54) gustaviae; (55) manauara sp. n.; (56) subtilis. Enneothrips atlanticus sp. n. 57–58: (57) meso- and metafurca; (58) abdominal tergites III–V. (59) abdominal tergites IV–V of flaviceps.

FIGURES 60–66. Abdominal tergites IV–V 60–61: (60) fulbrightae sp. n.; (61) fuscus. Abdominal tergites 62–64: (62) amazonicus sp. n. (VII–X); (63) atlanticus sp. n. (VII–IX); (64) gustaviae (V–X). Male sternites II–III 65–66: (65) amazonicus sp. n.; (66) enigmaticus.