Maoripsocus spiralosus, Schmidt & New, 2008

Schmidt, Evan R. & New, Timothy R., 2008, The Psocoptera (Insecta) of Tasmania, Australia, Memoirs of Museum Victoria 65, pp. 71-152 : 94

Maoripsocus spiralosus sp. nov.

Figures 45–51

Material examined. Holotype: Tasmania, Lyell Hwy , Hakea epiglottis , 16 Nov 1986.

Description of female. Coloration (after ca 6 years in alcohol). Head brown, with the following dark brown: markings dorsal toeyes, acrossbackofvertexandeachsideofmedianepicranial suture, median area of frons, postclypeal striae, two apical segments of maxillary palp, centripetal margins of ocelli, antenna. Eyes black. Fore wing (fig. 45) with brown markings and small hyaline areas. Hind wing (fig. 46) with slight brown tinge. Thoracic dorsa dark brown, remainder of thorax and legs brown. Abdomen cream, terminal segments brown.

Morphology. IO:D = 3.3. Basal flagellar segment slightly bent. Labrum: stylets small, spiculate; internal sclerotisation present; 5 distal sensilla. Lacinia (fig. 47) apically broad, preapically expanded on one side, apical margin with denticles, basally spiral-shaped. Mesothoracic precoxal suture absent. Setae on fore wing (fig. 45) veins short in single rank, slanting distally; vein cu 2 strongly setose. Epiproct and paraproct (fig. 48). Subgenital plate (fig. 49) rounded posteriorly, pigment area broad medially, with two slender arms diverging anteriorly. Gonapophyses (fig. 50) with external valve remnant bearing a single seta. Spermatheca (fig. 51) with long glandular area, sac large and well sclerotised.

Dimensions. B 2.9, FW 3.30, HW 2.60, F 0.71, T 1.21, t

1

0.324, t

2

0.134, rt 2.4:1, ct 19,0, f

1

0.577, f

2

0.348.

Male. Unknown.

Remarks. In details of the distribution of setae on the fore wing and genitalia this species closely resembles M. weindorferi (below). It differs in the shape of the basal half of the lacinia, and in the more extensive pigmentation of the fore wing. The dark brown pigment in the pterostigma is almost entire in M. spiralosus , and brown pigment is present basally in cell R 1 and apically in cell R 5. In M. weindorferi the dark brown pigment is limited to the apical half of the pterostigma; cell R 1 and the apical part of cell R 5 are hyaline.

Etymology. The specific name refers to the unusual form of the lacinia.

Figures

Figures 45-51. Maoripsocus spiralosus. Female: 45, fore wing; 46, hind wing; 47, lacinia; 48, epiproct and paraproct; 49, subgenital plate; 50, gonapophyses; 51, spermathecal sac. Figures 45, 46 and 48 and 49 to common scales.