Dactuliothrips xerophilus Bailey, 1937: 122

Pereyra, Veronica & Borbón, Carlos Manuel De, 2013, The American genus Dactuliothrips (Thysanoptera: Aeolothripidae) with three new species, Zootaxa 3734 (1), pp. 1-14 : 7-14

Dactuliothrips xerophilus Bailey, 1937: 122

Body dark brown, fore tibia and tarsi pale. Antenna dark, segment III and base or basal three fourths of segment IV pale ( Fig. 18 ). Fore wings dark with a pale area near the base ( Fig. 80 ). Head wider than long, with two pairs of long postocular setae ( Fig. 28 ). Pronotum and mesonotum with microtrichia ( Figs 36 , 43 ). Metanotum reticulate arcuate, with microtrichia, and with one pair of anterior setae ( Fig. 43 ). Fore femur with 1–4 small spurs on inner margin ( Fig. 71 ). Abdominal sternites IV–VI with 5–6 median discal setae, and microtrichia; sternite VII with three pairs of posteromarginal setae and two pairs of smaller supernumerary setae aligned with the posteromarginal setae ( Fig. 54 ). Male abdominal tergite I with paired longitudinal ridges that do not reach the anterior margin.

Material examined. USA, California, Mojave Desert, 1 male paratype, on Joshua tree flowers, 23.iii.1937 (R. Bohart); Victorville, 1 female, on Joshua tree flowers, 13.iv.1937 (M. Bacher); Little Rock, 1 female, on Joshua tree flowers, 23.iii.1937 (R. Bohart); Le Bec, 1 female, on Joshua tree flowers, 12.iii.1941 (L.G. Jones); Joshua tree NP, 1 female, 23.ii.2003 (I. Terry).

Acknowledgements

We thank Claudia Szumik and Matt Kaneshiro for advice and comments on the manuscript, José Ambrosetti for the identification of the host plants, and Laurence Mound for D. ephedra sp.n. material and comments on the manuscript. This research was supported by a grant from Consejo Nacional de Investigaciones Científicas y Técnicas de Argentina (CONICET, grant PIP No. 6502). We also thank the Smithsonian Institution for the short term visitor grant to V.P. to study the Thysanoptera collection at USNMNH in Washington DC and Dr. Richard zur Strassen and SMF for facilitating access to material and work space to study the SMF Thysanoptera collection. We also thank David Nickle (USNMNH) and Marta Loiacono (MLP) for the material to develop this study, as well as Liliana Cichón (EEA Alto Valle, INTA), Jaime Ortego (EEA, Mendoza, INTA) and Maria Elena Arce for collecting D. kaszabi specimens.

Figures

FIGURES 12 – 28. Dactuliothrips female antenna: (12) D. ephedra sp. n.; (13) D. kaszabi; (14) D. malloi; (15) D. monttea sp. n.; (16) D. prosopis sp. n.; (17) D. spinosus; (18) D. xerophylus. D. ephedra sp. n. antennal segment III – IV sensoria: (19) female; (20) male. Dactuliothrips female head: (21) D. ephedra sp. n.; (22) D. kaszabi; (23) D. kaszabi head microtrichia; (24) D. malloi; (25) D. monttea sp. n.; (26) D. prosopis sp. n.; (27) D. spinosus; (28) D. xerophylus.

FIGURES 63 – 81. Dactuliothrips fore legs: (63) D. kaszabi female; (64) D. monttea sp. n. female; (65) D. monttea sp. n. male; (66) D. prosopis sp. n. female; (67) D. prosopis sp. n. male. Dactuliothrips fore tibia and fore femur spurs: (68) D. kaszabi male; (69) D. prosopis sp. n. male; (70) D. spinosus female; (71) D. xerophylus female; (72) D. ephedra sp. n female; (73) D. ephedra sp. n male. Dactuliothrips fore tibia claw: (74) D. monttea sp. n. male; (75) D. malloi female. Male fore femur spurs: (76) D. monttea sp. n.. Dactuliothrips fore wing: (77) D. ephedra sp. n male; (78) D. kaszabi male; (79) D. monttea sp. n. female; (80) D. xerophylus female; (81) D. prosopis sp. n. female.

FIGURES 29 – 36. Dactuliothrips pronotum: (29) D. boharti female; (30) D. ephedra sp. n. female; (31) D. kaszabi male; (32) D. malloi female; (33) D. monttea sp. n. female; (34) D. prosopis sp. n. female; (35) D. spinosus female; (36) D. xerophylus female.

FIGURES 37 – 48. Dactuliothrips female mesonotum and metanotum: (37) D. diversus; (38) D. ephedra sp. n.; (39) D. kaszabi; (40) D. monttea sp. n.; (41) D. prosopis sp. n.; (42) D. spinosus; (43) D. xerophylus. Dactuliothrips female abdominal sternites III – VI: (44) D. ephedra sp. n.; (45) D. kaszabi; (46) D. malloi; (47) D. monttea sp. n.; (48) D. prosopis sp. n.

FIGURES 49 – 62. Dactuliothrips female abdominal sternite VII: (49) D. ephedra sp. n.; (50) D. malloi; (51) D. kaszabi; (52) D. monttea sp. n.; (53) D. prosopis sp. n.; (54) D. xerophylus. Male abdominal tergite I: (55) D. ephedra sp. n.; (56) D. kaszabi; (57) D. monttea sp. n.; (58) D. prosopis sp. n. Male abdominal sternites II – VI: (59) D. ephedra sp. n.; (60) D. kaszabi; (61) D. monttea sp. n.; (62) D. prosopis sp. n.