Fungus-feeding Thysanoptera: Phlaeothripinae of the Idiothrips genus-group in Australia, with nine new species
Author
Mound, Laurence A.
Author
Tree, Desley J.
text
Zootaxa
2015
4034
2
325
341
journal article
10.11646/zootaxa.4034.2.5
0e05b3f6-6c74-4a2a-805b-6b026b37c082
1175-5326
245133
43A9BB87-D5E4-4AEA-8955-152AE3A843A3
Azaleothrips lixinae
sp.n.
(
Figs 2, 5–8
)
Female macroptera
. Head and body, in life, with much red pigment; surface of body and legs light brown, head submarginally with longitudinal paler areas; tube and antennae darkest, tarsi yellow; fore wing and all major setae pale.
Head as wide as or wider than long, cheeks strongly rounded (
Fig. 5
); vertex with delicate, complex reticulate sculpture, without major setae; fore ocellus in small depression, directed forwards; eyes slightly larger dorsally than ventrally; maxillary stylets retracted to eyes, close together medially. Antennae 8-segmented, VII and VIII forming single unit but with complete suture, and ventral row of small sensoria on VIII extending onto distal half of VII; segment III with 3 stout sense cones, IV with 4. Pronotum with similar sculpture to head (
Fig. 8
), with 5 pairs of broadly capitate major setae; notopleural sutures complete. Mesonotum with narrow transverse reticulation, lateral setae small and capitate. Metanotum with bold longitudinal, narrow reticulation (
Fig. 8
), median setae small and finely pointed, anterior third with one or two pairs of small setae. Prosternal basantra absent; ferna transverse, almost continuous medially; mesopresternum complete but narrow medially; metathoracic sternopleural sutures long and slender. Fore tarsus with small acute tooth, shorter than half tarsal width. Fore wing almost parallel-sided, with about 8 duplicated cilia; sub-basal setae S1 and S2 short and broadly capitate, S3 longer and pointed. Pelta bell-shaped, reticulate, with campaniform sensilla (
Fig. 6
); tergites II–VII each with 2 pairs of sigmoid setae but anterior pair on each tergite smaller than posterior pair; posteromarginal paired setae arise close to posterior sigmoid setae, broadly and asymmetrically capitate; tergites II–VII lateral thirds with dentate microtrichia on sculpture lines; VIII with about 8 small discal setae medially; tergite IX setae S1 and S2 capitate, shorter than basal width of tube (
Fig. 7
); tube rather short, anal setae no longer than tube. Sternites with marginal setae short, little longer than discal setae.
Measurements
(
holotype
female in microns). Body length 1750. Head, length 195; width 205. Pronotum, length 120; width 225; major setae, am 15, aa 20, ml 15, epim 25, pa 20. Fore wing length 620. Tergite IX setae,
S1 35
;
S2 45
. Tube length 100. Antennal segments III–VII+VIII length, 60, 55, 55, 40, 65.
Male macroptera
. Very similar to female but smaller, tarsal tooth slightly larger; tergite IX setae S2 with apex blunt not capitate; sternite VIII with small circular pore plate centrally.
Material studied
.
Holotype
female,
South
Australia
, Meningie, dead
Eucalyptus
branch,
3.x.2013
(LiXin Eow 248).
Paratypes
:
South
Australia
, Salt Creek,
15km
South of Coorong,
2 females
from dead
Eucalyptus
branches,
11.iii.2011
; Ngarcat National Park,
1 female
,
1 male
from dead
Eucalyptus
leaves,
4.x.2013
.
Queensland
, Carnarvon Station,
1 male
from
Rosa banksiae
fls,
9.x.2014
(DJT1871).
Comments
. From the other species of
Azaleothrips
this species differs in having no postocular setae in either sex, and in having a small circular pore plate on sternite VIII of the male instead of the usual broad pore plate. No differences could be found between the male from Queensland and the male from South
Australia
.