Mortoniella bocaina, Blahnik & Holzenthal, 2011

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 : 55

Mortoniella bocaina , new species

Figs. 27 , 32

Like the other 2 new species of the M. velasquezi group from Brazil described here, this species lacks scales on the hind wings. It is perhaps most likely to be confused with M. tripuiensis , n. sp., since both species lack the elongate and diagnostic endophallic spines found in M. froehlichi , n. sp. However, M. bocaina does have a pair of short, apically rounded, endophallic spines, not found in M. tripuiensis , which can help to diagnose it.

Adult. Length of forewing: male 2.9–3.3, female 3.0– 3.2 mm. Forewing with forks I, II, and III present, hind wing with fork II only. Spur formula 0:3:4. Overall color dark brown. Legs brown, tibial spurs somewhat darker in color, but not strongly contrasting with legs. Wing bar at anastamosis marked with white, contrasting setae.

Male genitalia. Ventral process of segment VI posteriorly projecting, elongate, narrow, length more than 2 times width at base ( Fig. 27E ). Segment IX moderately rounded anterolaterally, length greatest in ventral 1/2 (or near middle), 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 moderate in length, simple in structure, with deep, broad, U-shaped mesal excision; apical lobes, as viewed laterally, distinctly projecting, rounded to subacute apically. Inferior appendages almost completely fused to phallic ensemble, basally with short, setose, anteriorly-directed lobes, apically apparently fused to phallicata and endophallic membrane, forming membranous or very lightly sclerotized lobes. Mesal pockets of fused inferior appendages very bulbously enlarged, with elongate, spine-like, posteriorly-directed apicoventral projections. Paramere appendages very narrow, elongate, about as long as dorsal phallic spine. Phallotheca very short; ventral rod-like appendages elongate, with widely flared apices. Dorsal phallic spine, as viewed dorsally, broad in middle, gradually narrowed and rounded apically; as viewed laterally, relatively narrow, sharply upturned at about apical 1/3rd. Phallicata membranous, continuous with endophallic membrane. Endophallic membrane simple in structure, with membranous apical and dorsal lobes, laterally with short, sclerotized, ventrally curved lobes.

Holotype male: BRAZIL: São Paulo: Parque Nacional da Serra da Bocaina , Cachoeira dos Posses, 22°46'26"S, 044°36'15"W, 1250 m, 3.iii.2002, Holzenthal, Blahnik, Paprocki, & Prather ( UMSP000069696 ) (pinned) ( MZUSP).

Paratypes: BRAZIL: São Paulo: same locality and date as holotype — 1 male, 3 females (pinned) ( UMSP) .

Etymology. This species is named M. bocaina , as a noun in apposition, for the name of the beautiful national park where this species was collected.

Figures

FIGURE 27. Mortoniella bocaina, new species, 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.

FIGURES 30–32. Mortoniella velasquezi species group, female genitalia: 30, Mortoniella tripuiensis, new species: A—tergum IX, dorsal; B—ventral; C—tergum VII, dorsal. 31, Mortoniella froehlichi, new species: tergum IX, dorsal. 32, Mortoniella bocaina, new species: tergum IX, dorsal.