Aliceathrips engaius, Mound, Laurence A., 2011

Mound, Laurence A., 2011, Grass-dependent Thysanoptera of the family Thripidae from Australia, Zootaxa 3064, pp. 1-40: 10

publication ID

http://doi.org/ 10.5281/zenodo.200567

persistent identifier

http://treatment.plazi.org/id/F81587F0-FFAC-7666-FF40-FC69FAD76A86

treatment provided by

Plazi

scientific name

Aliceathrips engaius
status

sp.n.

Aliceathrips engaius   sp.n.

( Figs 4–8 View FIGURES 1 – 10 )

Female macroptera. Body and legs yellow, ovipositor and mouth parts dark; fore wing slightly darker on basal half than on distal half; antennal segment I pale, II light brown, III –V yellow with apex light brown, VI –VIII brown. With the character states in the generic diagnosis; antennae 8 -segmented ( Fig. 8 View FIGURES 1 – 10 ), III with sensorium simple, IV with sensorium forked (inner branch sometimes slender and difficult to see). Ocellar setae III 1.5 times as long as an ocellus ( Fig. 5 View FIGURES 1 – 10 ). Pronotal posteroangular setae inner pair much shorter than outer pair; metanotum with weak irregular sculpture ( Fig. 5 View FIGURES 1 – 10 ); mesosternal anterior margin with about 12 setae; tergites with transverse reticulation, tergite IX median dorsal setae slender and not extending to posterior margin, posterior pair I equal in length to pair II; X with median split incomplete; sternite II with 0–3 discal setae, III –VII with 4–10 discal setae in an irregular transverse row.

Measurements (holotype female in microns). Body length 1550. Head length 150; width across eyes 145; ocellar setae III 23. Pronotum, length 150; maximum width 160; pa inner setae 20; pa outer setae 45. Fore wing length 720. Metanotal median setae 15. Tergite IX median-dorsal setae 45; marginal setae S 1 115; S 2 115. Tergite X setae S 1 65. Antennal segments III –VIII length 50, 42, 35, 48, 10, 12.

Male macroptera. Smaller and paler than female; tergite IX with pair of stout dark processes ( Fig. 4 View FIGURES 1 – 10 ); sternite III with transverse pore plate on antecostal area.

Material studied. Holotype female, Northern Territory, Macdonnell Ranges, Standley Chasm, from Triodia hubbardi   leaves, 24.iii. 2010 (Chris Palmer).

Paratypes: 7 females taken with holotype; same locality, date and collector, 2 females from Digitaria brownii   leaves, 11 females, 5 males from Neurachne tenuifolia   leaves; same locality, 31.x. 1999, 1 female, 1 male from Neurachne tenuifolia   leaves. Macdonnell Range, Ellery Creek, 2 females beaten from Alectryon oleifolius   , 1.xi. 1999.

Comments. This is the largest species in the genus, with a particularly slender body. It differs from the other species in having the maxillary palps elongate and 3 -segmented, the sensoria on the fourth antennal segment forked, and the median dorsal setae on tergite IX of females short and slender. The male has a pore plate only on sternite III, and the paired conical processes on tergite IX are different from those of the males of other species.

Kingdom

Plantae

Phylum

Tracheophyta

Class

Liliopsida

Order

Poales

Family

Poaceae

Genus

Aliceathrips