Mortoniella (Mortoniella) marini ( Rueda Martín and Gibon, 2008 )

Blahnik, Roger J. & Holzenthal, Ralph W., 2017, Revision of the northern South American species of Mortoniella Ulmer 1906 (Trichoptera: Glossosomatidae: Protoptilinae) *, Insecta Mundi 2017 (602), pp. 1-251 : 75-76

Mortoniella (Mortoniella) marini ( Rueda Martín and Gibon, 2008)

Fig. 60

Mexitrichia marini Rueda Martín and Gibon 2008: 219 .

Mortoniella marini (Rueda Martín and Gibon) : Blahnik and Holzenthal 2011: 45 [member of punensis subgroup].

This species is most similar to M. punensis Flint. The latter species was reillustrated by Blahnik and Holzenthal (2011). Both species have a second acute sclerotized lobe on each side of tergum X, in additional to the usual apical lobe, and also similarly developed, upturned lobes emerging from the ventral margin of the phallicata. As in many other species of the group, the paramere appendages cross over one another. Mortoniella marini can be easily distinguished from M. punensis by the shape of tergum X, which is invaginated between the apicolateral lobes in M. marini , with the mesal margin more or less linear, and is projecting and rounded mesally in M. punensis .

Adult —Length of forewing: male 3.5-4.4 mm; female 3.9-4.8 mm. Forewing with forks I, II, and III present, hind wing with forks II and III. Spur formula 0:4:4. Overall color medium brown, apices of tarsal segments whitish or pale brown. Tibial spurs darker than legs, somewhat contrasting in color. Wing bar at anastamosis indistinct, marked with light brown setae, most evident at arculus.

Male genitalia —Ventral process of segment VI large, laterally compressed, subtriangular (rather variable in shape), posteriorly or posteroventrally directed, length about 1 to 1½ times width at base, apex acute, process not retracted anterobasally. Segment IX nearly evenly rounded anterolaterally, length greatest midlaterally, posterolateral margin distinctly produced and rounded in dorsal ½, narrowing ventrally; segment deeply mesally excised dorsally and ventrally, forming lateral lobes, separated dorsomesally by much less than ½ width of segment. Tergum X moderate in length, lateral margins subparallel, apicomesal margin straight or somewhat concave between apicolateral lobes, apicolateral lobes divided or forked into subacute dorsal and ventral lobes, dorsal lobes mesally curved from lateral margins, relatively narrowly separated mesally; ventrolateral lobes rounded, projecting. Inferior appendages short, without dorsolateral projections, apicoventral projections very short (shorter than ventromesal projection), ventromesal margin with short, apically rounded projection. Mesal pockets of inferior appendage with spine-like apical processes short, posteriorly curved. Paramere appendage moderately elongate (shorter than dorsal phallic spine), nearly uniformly narrow, apex acute; opposite appendages converging and crossing over one another mesally. Dorsal phallic spine stout, with distinct ventral projection in about middle, apex gradually upturned; as viewed dorsally, with apex of spine acutely bifid (depressed), lateral margins of bifid apex distinctly sclerotized. Phallicata with pair of curved, narrow, spinelike projections from dorsal margin, projections hooked over paramere appendages; basoventral margin of phallicata with large upright lobe, extending transversely to dorsal margin, apex of lobe subacute. Endophallic membrane relatively elongate, with rounded membranous lobes; ventromesal spine short, bluntly rounded apically; phallotremal spines lightly sclerotized, but distinct, projecting apicolaterally.

Material examined — BOLIVIA: Cochabamba: rd. to Villa Tunari, Chapare , 1300 m, 8- 10.xii.1984, LE Peña G – 1 male, 11 females (pinned) ( NMNH) ; Carrasco N. P., Río San Mato , at cable crossing to park, 17.06392° S, 65.47558° W, el 449 m, 12.xi.2004, Robertson, Garcia, Vidaurre – 1 male (pinned) ( UMSP) ; La Paz: Quebradas de Río Zongo , 1400 m, 24-30.x.1984, LE Peña G – 2 males, 8 females (pinned) ( NMNH) ; PN and ANMI Cotapata, Estación Biol. Tunquini, Río Huarinilla , 16.20272° S, 67.83748° W, el 1253 m, 8.xii.2004, Robertson and Valdivia – 5 males, 44 females (pinned) ( UMSP) ; PN and ANMI Cotopata, Estación Tunquini, Quebrada El Padrini, 16.20322° S, 67.84487° W, el 1343 m, 6-7.xii.2004, Robertson and Valdivia, 3 males, 16 females (pinned) ( UMSP) ; PN and ANMI Cotopata, Estación Biol. Tunquini, Río Santa Catarina , 16.19477° S, 67.86805° W, el 1525 m, 2-5.xii.2004, Robertson and Valdivia – 27 males, 195 females (pinned) ( UMSP) ; Santa Cruz: Caballero Prov. , PN Amboró, 17.83556° S, 64.38972° W, el 2050 m, 15- 21.x.2001, S Spector and J Ledezma – 1 male (pinned) ( UMSP) ; PERU: Huanuco, 16.ix.1954, EI Schlinger and ES Ross – 7 males, 11 females (alcohol) ( CAS) ; Cuzco: Paucartambo to Pilcopata rd., Río San Pedro at Puente San Pedro , 13.05500° S, 71.54633° W, 1445 m, 24.vi.1993, Blahnik and Pescador – 1 male (pinned) ( NMNH) ; Paucartambo to Pilcopata rd., Quebrada Quitacalzon at Puente Quitacalzon , 13.02617° S, 71.49950° W, 1050 m, 25-27.vi.1993, Blahnik and Pescador – 1 male, 1 female (pinned) ( NMNH) ; Buenos Aires, 53 km W Pilcopata , lower montane wet forest, 2280 m, 3-6.xii.1979, JB Heppner – 1 male, 1 female (alcohol) ( NMNH) .

Distribution — Bolivia, Peru.

Figures

Figure 60. Mortoniella (Mortoniella) marini (Rueda Martín and Gibon), male genitalia. A—lateral; B—segment IX and tergum X, dorsal; C—phallic ensemble, ventral; D—ventral process of segment VI, lateral.