Aliceathrips engaius
- Dataset
- GBIF Backbone Taxonomy
- Rank
- SPECIES
- Published in
- Mound, Laurence A. (2011): Grass-dependent Thysanoptera of the family Thripidae from Australia. Zootaxa 3064: 1-40, DOI: 10.5281/zenodo.200567
Classification
- kingdom
- Plantae
- phylum
- Tracheophyta
- class
- Liliopsida
- order
- Poales
- family
- Poaceae
- genus
- Aliceathrips
- species
- Aliceathrips engaius
description
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), 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). Pronotal posteroangular setae inner pair much shorter than outer pair; metanotum with weak irregular sculpture (Fig. 5); 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); sternite III with transverse pore plate on antecostal area.
discussion
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.
materials_examined
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.