Liposcelis maunakea, Mockford, Edward L. & Krushelnycky, Paul D., 2008

Mockford, Edward L. & Krushelnycky, Paul D., 2008, New species and records of Liposcelis Motschulsky (Psocoptera: Liposcelididae) from Hawaii with first description of the male of Liposcelis bostrychophila Badonnel, Zootaxa 1766, pp. 53-68 : 56-57

Liposcelis maunakea sp. n.

Diagnosis. Species of group I-Ab, nasus complex (characters of group and complex noted above). Differing from L. nasus and L. volcanorum sp. nov. in uniform body color, not being darker on postclypeus; body in general darker; larger size, and in details of the spermapore region. Differing from L. nasus also in more elongate head. Differing from L. volcanorum also in having two instead of one PNS ( Fig. 9 ).

Female color (not well preserved in material on hand). Medium tawny brown over all well-sclerotized regions of body and appendages. A thin, transverse, dark brown line bordering anterior margin of each of abdominal terga 3–8.

Female general structural characters. Eight ommatidia in eye (n=7). No indication of ecdysial lines of head. Sub-distal sensillar group of P4 ( Fig. 4 ): 2 long slender setiform; 4 shorter club-shaped (one of these the most basal), 2 very short. Lacinial tip normal for the genus ( Fig. 5 ). Mesothoracic parapsidal regions indicated only by slight change in orientation of cuticular sculpture. Abdominal terga 1 and 2 uniformly weakly sclerotized. Base of ovipositor valvulae extremely short, bifid ( Fig. 6 ). T-shaped sclerite with arms each longer than stem ( Fig. 7 ). Region of spermapore with a distinct collar ( Fig. 8 ).

Female sculpture of integument. Vertex (as in Fig. 28 ) with slender, transverse areoles, faintly shagreened in middle, the shagreen more distinct laterally and grading into minute tubercles near eyes; areoles disintegrating around eyes. Synthoracic terga with dense minute tubercles, not in areoles. Abdominal terga as synthoracic terga.

Female chaetotaxy. Vertex with moderately dense setae (19–23 µm) slightly longer than distances between their bases. Pronotum ( Fig. 9 ) with long SI (~ 42µm), 2 PNS ca. two-thirds length of SI; prosternum ( Fig. 10 ) with (5,6) 7 (8) setae. SII (~ 49µm) slightly longer than SI. Mesosternum with (7) 9–10 (11) setae in anterior row. Setae very sparse on abdominal terga 1–7; terminal segments ( Fig. 12 ): on tg8, setae in two transverse rows; M 8 differentiated (~45µm); Md 9 ~70 µm, Mv 9 ~82 µm; Md 10 ~84 µm, Mv 10 ~85 µm; D ~72 µm; SE ~68 µm.

Female measurements (µm; N = 6 for all except 4 for P4, means in parentheses). BL = 1244–1441 (1337); V = 270–295 (283); P4 = 99–113 (104); FL = 316–342 (333); FW = 173–190 (184); T = 235–255 (245); t1 = 99–114 (107); t2 = 40–44 (42); t3 = 52–53 (52).

Male. Unknown.

Specimens examined. Holotype female. USA. Hawaii. Hawaii Co. Mauna Kea State Park. Pohakuloa Site, 19°15’N, 155°30’W, 2060 m, pitfall trap, 5 September 2002 (P Krushelnycky et al.). Paratypes: 10 females with same data as holotype, HPP1 (holotype and 6 paratypes BPBM, 4 paratypes ELM); other paratype: HAP1, 1 female (BPBM).

Figures

FIGURES 1 – 11. Liposcelis spp. (1) L. volcanorum male, phallosome (dip = distal plate); (2) L. kipukae male, phallosome; (3) L. bostrychophila male, phallosome. L. maunakea female 4 – 11: (4) Subapical sensory field of P 4; (5) Lacinial tip; (6) Common stem of ovipositor valvulae; (7) T-shaped sclerites; (8) Spermapore region; (9) Setae of pronotum and anterior region of mesonotum; (10) Setae of prosternum; (11) Setae of anterior row of mesosternum. Scale bars = 0.1 mm unless indicated otherwise. Figs. 5 and 6 to scale of Fig. 7; Figs. 9 and 10 to scale of Fig. 11. Interior structures in dashed lines.

FIGURES 28 – 30. Liposcelis spp. (28) L. volcanorum female, sculpture of vertex; (29) L. kipukae female, sculpture of vertex; (30) L. kipukae female, sculpture of abdominal tergum 4. Scale bar = 0.05 mm for Figs. 28 and 29, 0.017 mm for 30. Arrows point anteriorly.

FIGURES 12 – 18. Liposcelis spp. (12) L. maunakea female, setae of terminal abdominal terga (those originating ventrally in dashed lines). L. volcanorum female 13 – 18: (13) Subapical sensory field of P 4; (14) Common stem of ovipositor valvulae, scale of Fig. 15; (15) T-shaped sclerites; (16) Spermapore region; (17) Setae of pronotum and anterior region of mesonotum, scale of Fig. 18; (18) Setae of prosternum and anterior row of mesosternum. Scale bars = 0.1 mm unless indicated otherwise. Internal structures in dashed lines.