Mortoniella, 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 : 127

Key to females of the subgenera and species groups of Mortoniella , and species of the velasquezi group

1.

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2(1).

— Sternum VII with transverse row of very elongate setae ( Fig. 119A, B ) velasquezi group, subgenus ( Nanotrichia ) ............................................................................................................. 4 Sternum VII without row of elongate setae .............................................................................. 2 Tergum VIII with posterior margin invaginated, setation on posterior margin grouped or with 2 setae on mesal projection (except in M. catherinae , n. sp., Fig. 108 , with only weak posteromesal invagination) ........................................................................................................ 3 Tergum VIII without posteromesal invagination, setae more or less uniformly distributed on posterior margin ............................................................................................................................

...... leroda group and species “unplaced to species group,” subgenus ( Mortoniella ) 3(2).

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Tergum VIII with elongate setae on posterior margin grouped on either side of mesal invagination ( Fig. 105B , 106B, 107B , 109B ) .... bilineata group, subgenus ( Mortoniella ) Tergum VIII with tab-like posteromesal projection bearing 2 elongate setae ( Fig. 116B, 117B)

............................................................................... ormina group, subgenus ( Nanotrichia )

4(1).

— Tergum IX with a distinct projecting dorsal lobe ( Fig. 124A, 124B ) ...... M. spangleri , n. sp. Tergum IX without distinct projecting dorsal lobe ................................................................... 5

5(4).

— Tergum IX, in dorsal view, with posteromesal invagination ( Fig. 119C , 125 ) ....................... 6 Tergum IX, in dorsal view, with rounded apicomesal projection ( Fig. 121B ) ......................... 8 6(5).

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Apicomesal invagination of tergum IX relatively wide, lateral lobes more rounded ( Fig. 125 ) .......................................................................................................................... M. coheni , n. sp.

Apicomesal invagination of tergum IX narrow, lateral lobes more quadrate ( Fig. 119C, 120 ) ..................................................................................................................................................... 7

7(6).

— Lateral lobes of tergum IX distinctly quadrate, anteromesal margin with “post” of crypt more evident ( Fig. 119C ) ................................................................................. M. velasquezi (Flint) Lateral lobes of tergum IX subquadrate; anteromesal margin with “post” of crypt less evidently projecting ( Fig. 120 ) ...................................................................................... M. cognata , n. sp. 8(4).

— Apicomesal projection of tergum IX weakly produced; lateral lobes less evidently rounded ( Fig. 123 ) ............................................................................................. M. venezuelensis , n. sp. Apicomesal projection of tergum IX more distinctly produced (evident also in lateral view, Fig. 121A ); lateral lobes distinctly rounded ( Fig. 121B, 122 ).......................................................... 9

9(8).

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Figures

Figure 105. Mortoniella (M.) bilineata Ulmer, female genitalia. A—lateral; B—dorsal; C—ventral; D—glands of terga VI and VII.

Figures 119-120. Mortoniella (Nanotrichia), velasquezi group species, female genitalia. 119—Mortoniella velasquezi (Flint). A—lateral; B—ventral; C—dorsal; D—glands of tergum VII. 120—Mortoniella cognata, n. sp., dorsal.

Figures 108-109. Mortoniella (M.), bilineata group species, female genitalia. 108—Mortoniella catherinae, n. sp. A—lateral; B—dorsal; C—ventral. 109—Mortoniella hodgesi Flint. A—lateral; B—dorsal; C—ventral.

Figures 106-107. Mortoniella (M.), bilineata group, female genitalia.106—Mortoniella angulata Flint. A—lateral; B—dorsal. 107—Mortoniella tusci, n. sp. A—lateral; B—dorsal; C—ventral.

Figures 121-125. Mortoniella (Nanotrichia), velasquezi group species, female genitalia.121—Mortoniella eduardoi (Rueda Martín and Gibon): A—lateral; B—dorsal. 122—Mortoniella licina, n. sp., dorsal. 123—Mortoniella venezuelensis, n. sp., dorsal. 124—Mortoniella spangleri, n. sp. A—lateral; B—dorsal. 125—Mortoniella coheni, n. sp., dorsal.