Fungus-feeding phlaeothripine Thysanoptera in the genus Holothrips from Australia and New Caledonia, with a structurally similar new genus, Holoengythrips
Author
Mound, Laurence A.
Australian National Insect Collection, CSIRO, PO Box 1700, Canberra, ACT 2601. E-mail: laurence. mound @ csiro. au
Author
Tree, Desley J.
Queensland Primary Industries Insect Collection (QDPC), Department of Agriculture, Fisheries and Forestry, Queensland, Ecosciences Precinct, GPO Box 267, Brisbane, Qld, 4001. E-mail: Desley. Tree @ daff. qld. gov. au
text
Zootaxa
2014
2014-09-04
3860
2
125
148
journal article
4851
10.11646/zootaxa.3860.2.2
24969123-dce4-499a-aa81-55469cf1713a
1175-5326
4930156
EFF3B789-5578-4E7B-B6C7-3895511E0CE4
Holoengythrips kathyae
sp.n.
(
Figs 35
,
54
,
55
,
64
)
Male microptera
: Body, legs and antennae light brown, fore tarsi yellow, also extreme base of antennal segment III; tube with transverse yellow band medially; major setae shaded. Head long, slender (
Fig. 35
), dorsal surface without sculpture except near eyes and in ocellar triangle, ocelli small; cheek setae small but stout, postocular setae longer than eye length with flattened, recurved apices; mouth cone not extending to ferna. Antennal segment III with 3 sensoria, IV with 4; V–VII with parallel-sided pedicel, VIII slightly constricted at base. Pronotum transverse, with weak median apodeme but no sculpture, 5 pairs of major setae, am acute, remaining pairs blunt to weakly capitate. Fore femora slightly swollen, fore tibia slightly thickened at inner apex; fore tarsal tooth longer than tarsal width; fore coxae with small stout setae. Mesonotal lateral setae well-developed, mesothoracic spiracular area weakly protruding laterally; metanotum with one pair of small major setae, weakly reticulate posteromedially. Fore wing lobe relatively long. Prosternal ferna scarcely meeting medially; mesoeusternal margin narrow, mesopresternum of three small sclerites (
Fig. 55
); metathoracic sternopleural sutures weak. Pelta subquadrate with rounded anterior margin; tergites weakly sculptured, with two pairs of weakly sigmoid wing-retaining setae; major setae bluntly pointed to weakly capitate; tergite IX setae S1 pointed, setae iS slightly shorter than S2. Anal setae about as long as tube. Sternites with one row of about 12 small discal setae; sternites III–VI of largest males sometimes with paired anterolateral areas of weak reticulation; VIII with pore plate occupying most of median area of sclerite (
Fig. 64
).
Measurements
(
holotype
male in microns).
Body length 2680. Head, length 300; median width 180; postocular setae 85. Pronotum, length 170; median width 300; major setae: am 50(25), aa 60, ml 55, epim 60, pa 40. Fore wing lobe 110. Tergite IX setae: S1 100, iS 50,
S2 60
. Tube length 160. Antennal segments III–VIII length 78, 75, 70, 60, 50, 25.
Female microptera
: Similar to male in colour and structure except, fore tarsal tooth very small, less than half of tarsal width (54); postocular setae capitate and straight; coxal stout setae smaller; mesoeusternal margin transverse; tergite IX setae S1 and S2 pointed; sternites without reticulate areas, VIII with large pore plate (
Fig. 64
).
Measurements
(
paratype
female in microns).
Body length 2250. Tergite IX setae: S1 100, iS 50, S2 110.
Female macroptera
: Similar to microptera, fore wing with 9 duplicated cilia; tergites each with 2 pairs of sigmoid wing-retaining setae.
Material studied
.
Holotype
male microptera,
Queensland
,
Lamington
,
O’Reilly’s
, from
Nothofagus
dead branch,
13.iii.2007
(
LAM 5041
).
Paratypes
, all micropterae:
Queensland
,
Lamington
,
O’Reilly’s
,
5 females
,
4 males
from dead branches,
9.x.2006
;
same locality,
2 females
,
2 males
from bark spray,
13.iii.2007
;
1 male
from dead branch,
23.ix.2012
;
1 female
,
2 males
from spraying tree buttress,
4.viii.2013
;
Springbrook
, near
Lamington
,
4 females
,
1 male
from bark spray,
29.xi.2011
;
Mt Gannon
,
2 females
,
1 male
from bark spray,
29.xi.2010
;
Mt Glorious
,
3 females
,
3 males
, 2007–009;
Brisbane
,
Mt Nebo
,
2 females
from dead branch,
30.x.2007
;
Mt Mee
,
1 female
,
30.x.2010
;
Westcott
,
Bunya Mts
,
1 female
,
5 males
,
1 female
macroptera from bark spray,
30.xii.2010
;
Tallegalla Weir Junction
,
1 female
,
1 male
,
22.xii.2011
.
New South Wales
,
Murwillumbah
,
Crystal Creek
,
2 males
from dead leaves,
23.xii.2006
.
Comments
.
The presence of specialized reticulate areas in some of the larger males of this species, anterolaterally on several sternites, is unique among species within this genus. The bicoloured tube distinguishes this species from others in the genus. Four specimens have been studied from Bulburin, NW of Bundaberg that probably represent this species but have the tube darker than the specimens listed above.