Mortoniella (Mortoniella) tridens, Blahnik & Holzenthal, 2017

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 : 91-92

publication ID

https://doi.org/ 10.5281/zenodo.5170203

publication LSID

lsid:zoobank.org:pub:AB1A57F0-7CB4-4830-920B-DF219740A596

DOI

https://doi.org/10.5281/zenodo.6489904

persistent identifier

https://treatment.plazi.org/id/03F687A7-FFA4-F85A-FF01-BC4643C3FE2F

treatment provided by

Felipe

scientific name

Mortoniella (Mortoniella) tridens
status

sp. nov.

Mortoniella (Mortoniella) tridens , new species

Fig. 76 View Figure 76

Mexitrichia View in CoL n. sp. 7: Flint 1996: 383.

This species is very closely related to M. triramosa , n. sp. Both species have a very unusual tripartite dorsal phallic spine, as discussed in the subgroup description above. Mortoniella tridens can be distinguished from M. triramosa by its longer paramere appendages and shorter inferior appendages, as well as by having a pair of rounded apicoventral lobes on the phallicata (rather than a decurved ventromesal lobe) and also by having a pair of wart-like projections on tergum X.

Adult —Length of forewing: male 3.2-3.3 mm. Forewing with forks I, II, and III present, hind wing with forks II, III, and V. Spur formula 0:4:4. Overall color dark brown, Tibial spurs slightly darker than legs, weakly contrasting in color. Wing bar at anastomosis distinct, marked with white setae.

Male genitalia —Ventral process of segment VI laterally compressed, very large, subtriangular, ventrally directed, length subequal to width at base, apex acute, process not retracted anterobasally. Segment IX nearly evenly rounded anterolaterally, length greatest midlaterally, posterolateral margin slightly produced 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 relatively short, subquadrate, with pair of small raised setose processes at about midlength, lateral margins subparallel, apicolateral lobes reduced to small trianguloid processes, inset from lateral margin, acute apically; ventrolateral lobes prominent, rounded. Inferior appendages short, strongly fused to phallicata, distinguishable as such mostly by setae, lateral lobes obsolete, apicomesal margin slightly projecting, bluntly truncate. Mesal pockets of inferior appendage with spine-like apical processes relatively short, narrow, sinuous, posteriorly projecting. Paramere appendage moderately elongate, narrow, with base displaced ventrally on membranous lobe, apex posterodorsally curved. Dorsal phallic spine cleft apically to form 3 narrow branches, mesal one dorsally inflected, lateral ones subparallel basally, divergently and laterally curved near apex. Phallicata with pair of small rounded ventral lobes near apex. Endophallic membrane elongate, without membranous lobes or ventral spine; phallotremal spines very small, indistinct, apical.

Holotype male (pinned)— PERU: Cuzco: Paucartambo; Pilcopata to Atlaya , 4.ix.1988, O Flint and N Adams ( UMSP000157321 View Materials ) ( MJP).

Paratype — PERU: Cuzco: same data a holotype – 1 male (pinned) ( NMNH).

Etymology —This species is named M. tridens , from the Latin word for a fork with three tines, and referring to the tripartite structure of the dorsal phallic spine.

O

Botanical Museum - University of Oslo

N

Nanjing University

NMNH

Smithsonian Institution, National Museum of Natural History

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Gentianales

Family

Apocynaceae

Genus

Mortoniella

Loc

Mortoniella (Mortoniella) tridens

Blahnik, Roger J. & Holzenthal, Ralph W. 2017
2017
Loc

Mexitrichia

Flint, O. S., Jr. 1996: 383
1996
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