Psoquilla marginepunctata Hagen

Mockford, Edward L. & García, Alfonso N., 2010, Psoquilla infuscata Badonnel (Psocoptera: Psoquillidae) in the Western Hemisphere with description of the male and brachypterous form, Zootaxa 2618, pp. 61-68 : 65-66

Psoquilla marginepunctata Hagen

Psoquilla marginepunctata Hagen, 1865:123 . Heteropsocus dispar Verrill, 1902:817 .

It is important to note that a nomenclature problem does not exist with regard to the two named species. The original description of P. marginepunctata ( Hagen, 1865) , though brief, includes a diagnostic statement about the brachypterous form: “superior wings…black, with white points on the margin”. Clearly, this statement cannot apply to P. i n f u s c a t a. Also, the synonymy of Heteropsocus dispar with P. marginepunctata is confirmed in that Verrill (1902, Fig. 192c) illustrates a brachypterous form with forewing dark throughout the middle region.

Although this species has been described in detail ( Hagen 1865, McLachlan 1867, Verrill 1902 [under the name Heteropsocus dispar ], Enderlein 1915, 1925, Pearman 1931, Roesler 1940, Badonnel 1949, 1977, Broadhead 1961, Günther 1974, Mockford 1993, Lienhard 1998), some aspects are not well enough known to allow comparison with details of the description of P. i n f u s c a t a given above.

The color description of P. marginepunctata needs no further elaboration (opera cit. sup.). Structural features described below seem not to have been published previously. Also, measurements of an individual of each wing morph are included to allow ready comparison with those of P. infuscata .

Augmented description. Male (brachypterous) structural characters. Head and its appendages as described for P. i n f u s c a t a except antenna with 21 flagellomeres; f5, f7, f9, f14, and f18 on left and f6, f7, f9, f11, f14, and f18 on right each with a sense cone near tip, those on f14 and f18 somewhat longer than others. Thorax and its appendages as described for P. infuscata except all veins in basal one-third of forewing distinct; Sc present as a short spur from the main trunk near wing base; Cu1a represented by a short spur from Cu1, and all principal veins reaching wing margin. Hindwing as described for P. infuscata . Hypandrium as described for P. i n f u s c a t a except the pair of lobes at tip only very slightly raised ( Fig. 8 ). Phallosome ( Fig. 9 ): parts #1 and #2 of each side fused, bearing 2 spines, one directed inward at basal two-fifths of this compound structure, the other at its tip; part #3 with its upper surface joining that of opposite side, forming a semimembranous bridge, its lower surface disappearing at (fused with?) base of part #4; #4 of two shafts on each side—an upper one fusing basally with that of opposite side and a lower one giving off a ventral lobe near its base and converging basally towards that of opposite side; internal paramere joining outer surface of part #3; distal encasement of ejaculatory duct a broad scoop narrowing distally with denticulate outer walls. Epiproct and paraproct as described for P. infuscata .

Male (brachypterous) measurements. BL = 1028; FW = 669, HW = 220, F = 274, T = 352, t1 = 198, t2 = 37, t3 = 41, f1 = 64, f2 = 44, f3 = 53, f4 = 78, IO = 222, d = 78, IO/d = 2.85. Male (macropterous) measurements. BL = 1302, FW = 1181, HW = 990, F = 271, T = 374, t1 = 208, t2 = 39, t3 = 41, f1 = 71, f2 = 59, f3 = 65, f4 = 78, IO = 226, d = 105, IO/d = 2.15.

Female (brachypterous) structural characters. Head as described for P. infuscata except antenna with 15– 17 flagellomeres; sense cones on f4, f7, f10, f12, f14/f4, f6, f8, f10, f15. Thorax and its appendages as described for male. Ovipositor valvulae as illustrated for P. i n f u s c a t a ( Badonnel, 1949, Fig. 21). Spermapore sclerite quadrate with two ear-like appendages distally (see Badonnel, 1949, Fig. 31). Spermatheca ( Fig. 10 ) lacking sclerotization inside the sac; the beak slender, arising from a broad, semimembranous base; spermathecal duct entering near base of beak. Epiproct and paraproct as described for male.

Female (brachypterous) measurements. BL = 1202; FW = 580, HW = 173, F = 273, T = 365, t1 = 189, t2 = 43, t3 = 44, f1 = 68, f2 = 62, f3 = 64, f4 = 68, IO = 263, d = 79, IO/d = 3.33. Female (macropterous) measurements. BL = 1468, FW = 1273, HW = 1036, F = 318, T = 458, t1 = 236, t2 = 53, t3 = 51, f1 = 77, f2 = 59, f3 = 76, f4 = 81, IO = 264, d = 102, IO/d = 2.59.

Material examined. BRAZIL: Santa Catarina: Nova Teutonia, el. 300–500 m, (all coll. F. Plaumann), June 1952, 3 ɗ, 18 Ψ M, August 1971, 3 ɗ B, November 1972, 5 ɗ, 20 Ψ M, 3 ɗ, 5 Ψ B, December 1972, 21 ɗ, 75 Ψ M, 1 ɗ B ( USNM). MEXICO: Chiapas: Sima de las Cotorras ca. Ocozocoautla, 3 December 1993, on tree trunk, 2 ɗ, 1 Ψ B, coll. A. Casasola ( CNIN); Guerrero: ca. Acapulco, sifting litter, 1 Ψ M, coll. W. López Forment ( CNIN); Ixtapa, ca. Zihuatanejo, 12 December 1975, on dead hanging leaves in forest, 4 Ψ M, 4 Ψ B, coll. A. N. García Aldrete ( CNIN); Jalisco: Chamela: UNAM Biological Station (all but last coll. D. Yáñez), 20–21 August 1979, on bracket fungus on tree trunk, 2 ɗ, 4 Ψ M, 8 ɗ, 5 Ψ B, 1 nymph; 3–4 November 1979, on tree bark and at white light, 3 Ψ M, 2 ɗ, 4 Ψ B, 3 nymphs; 27 February 1980, beating foliage in forest, 1 ɗ B; 1 March 1980, beating dead shrub branches, 1 ɗ B; 22 April 1980, beating foliage in forest, 1 ɗ B; 9 September 1987, beating branches in forest, 1 Ψ M, coll. A. N. García Aldrete ( CNIN); Nayarit (all coll. A. N. García Aldrete): María Madre Island: Rd. Puerto Balleto-La Antena, el. 210 m, 26 March 1984, beating vegetation in forest, 4 Ψ B; ca. San Juan Papalillo Camp, 29 March 1984, on buttressed Ficus trunk, 1 ɗ M; ca. Venustiano Carranza Camp, 27 March 1984, el. 90 m, beating vegetation in forest, 1 Ψ M ( CNIN); Quintana Roo: 5 km E Polyuc, 25 March 1964, beating vegetation at forest edge, 1 Ψ M, coll. E. L. Mockford ( ELMC); Veracruz: Los Tuxtlas: UNAM Biology Station, 17 August 1987, under loose bark of dead tree, 1 ɗ B, coll. A. N. García Aldrete ( CNIN). UNITED STATES: Arizona: Nogales, 3 July 1960, intercepted on Tamarindus indicus from Mazatlán, Mexico, 1 Ψ B, coll. E. Wilson ( ELMC); Florida: Alachua Co.: Gainesville, 2 August 1953, in building, 1 Ψ M, coll. E. L. Mockford ( ELMC); 23 October 1953, on car windshield, 1 Ψ M, coll. E. L. Mockford ( ELMC); Dade Co.: Miami Beach, 6 July 1953, in hotel furniture, 1 ɗ, 2 Ψ M, 3 ɗ, 10 Ψ B, 16 nymphs, coll. K. M. Sommerman ( ELMC).

Figures

FIGURES 8 – 10. Psoquilla marginepunctata Hagen. (8) Male B, distal end of hypandrium; (9) Male B, phallosome (numbers and letters as in Fig. 1); (10) Female B, spermathecal sac and accompanying glands (b = beak). Scale bars = 0.1 mm.