Mortoniella catarinensis ( Flint, 1974 )

Blahnik, Roger J. & Holzenthal, Ralph W., 2011, Revision of the austral South American species of Mortoniella (Trichoptera: Glossosomatidae: Protoptilinae) 2851, Zootaxa 2851 (1), pp. 1-75 : 49

Mortoniella catarinensis ( Flint, 1974)

Fig. 24

Mexitrichia catarinensis Flint, 1974: 12 .

Mortoniella catarinensis (Flint) ; Blahnik & Holzenthal 2008: 70 [ M. ormina species group].

This species can be diagnosed be the wide lateral expansions of its dorsal phallic spine and by its paramere appendages, which apparently consist of 3 pairs of spine-like structures.

Adult. Length of forewing: male 2.0 mm. Venation difficult to discern; forewing (probably) with forks I, II, and III present, hind wing with fork II only. Spur formula 0:3:4. Specimen in alcohol and totally cleared, color not evident.

Male genitalia: Ventral process of segment VI posteriorly projecting, elongate, narrow, length more than 2 times width at base; apex dorsoventrally compressed, acute as viewed laterally ( Fig. 24E ), rounded as viewed ventrally. Segment IX rounded anterolaterally, length greatest in ventral 1/2, posterolateral margin nearly linear; segment deeply excised dorsomesally and ventromesally, forming lateral lobes, lobes separated dorsomesally by about 1/2 width of segment. Tergum X elongate, simple in structure, with V-shaped mesal excision extending about 1/2 length of segment; apical lobes acute. Inferior appendages inconspicuous, subtriangular as viewed laterally, each with acute apicoventral projection and short dorsal lobe; posteromesal margin convex. Mesal pockets of fused inferior appendages with apical processes elongate, narrow, sinuous, posteriorly directed, extending beyond inferior appendages. Paramere appendages (apparently) composed of 3 pairs of elongate, acute processes (lateral 2 possibly from base of phallicata). Dorsal phallic spine of distinctive structure, laterally with wing-like, depressed, lateral projections, basal margin of each wing rounded, apical margins acute; apical 1/3rd of dorsal phallic spine sharply upturned, apex acute. Phallicata lightly sclerotized, without obvious spines. Endophallic membrane bulbous, with lightly sclerotized, paired apicodorsal projections (probably phallotremal spines).

Material examined. BRAZIL: Santa Catarina: i.1963, F Plaumann — 1 male (holotype, in alcohol, USNM type 72739) ( NMNH) .

Distribution. Brazil

Figures

FIGURE 24. Mortoniella catarinensis (Flint), male genitalia: A—lateral; B—segment IX and tergum X, dorsal; C—phallic ensemble, ventral; D—dorsal phallic spine, dorsal; E—ventral process of segment VI, lateral.