Alisotrichia froehlichi Alves, Takiya & Santos, 2023, sp. nov.
Creators: name: Alves, André Almeida
name: Takiya, Daniela Maeda
name: Santos, Allan Paulo Moreira
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydroptilidae
Alisotrichia
Alisotrichia froehlichi

description: Alisotrichia froehlichi sp. nov.  urn:lsid:zoobank.org:act: 09D7DDEE-5BE5-44D8-B77A-84FC3ED53DF7  
(Figs. 2, 3 A-3E)  
 Description. Adult male.Forewing length 1.70–1.98 mm (mean = 1.84 mm, SD = 0.10, n = 11). General color, in ethanol, brown (Fig. 2). Antennae 18-articulated; scape enlarged, semicircular in anterior view (Fig. 3E); pedicel slightly globose, chalice-like, longer than the next two articles combined (Fig. 3E); flagellomeres short, covered by scale-like setae, apical article tapering (Fig. 3E). Ocelli 2. Maxillary palpi 5-articulated, 4th and 5th palpomeres thin, 5th palpomere about 1.5x longer than 4th. Labial palpi 3-articulated. Mesoscutellum with transverse suture. Metascutellum approximately elliptical. Tibial spurs formula 0,2,4, each pair of meso- and metatibial spurs with one spur about twice as long as the other. Fore- and hind wings with long dark brown setae (Fig. 2). Abdominal segment VII with ventromesal process, bifurcate in lateral view, with dorsal branch longer than ventral (Fig. 3C).   
Male genitalia. Segment VIII with a pair of dorsolateral processes, posterad directed, each bearing a very long, spine-like seta, extending beyond segment apex (Figs. 3A, 3C); in lateral view, with rounded apex (Fig.3C); in ventral view, posterior margin with a very deep mesal Y-shaped incision, with a pair of short, acute processes directed inwards, and a pair of shallow lateral V-shaped incisions (Fig. 3B). Segment IX fused with segment X, reduced ventrally; with a pair of slender, lateral elongate processes, slightly curved inwards in dorsal view (Fig. 3A); anterolateral margins with a pair of slender apodemes reaching segment VII internally (Figs. 3 A-3C). Segment X long, membranous; with lateral margins slightly arched in dorsal view (Fig. 3A); dorsally with a pair of slender sclerites, each one thinner at midlength, tapering to a rounded apex (Fig. 3A). Subgenital plate, in ventral view, long, extending beyond half length of segment VIII; with anterior portion projecting into a pair of rods; posterior margin subquadrate, with a subapical circular open area (Fig.3B). Inferior appendages absent.Phallus tubular, constricted mesally; superior portion with basal and median third shovel-like, slightly sclerotized; apical third membranous and apically rounded (Fig. 3D); ejaculatory duct protruding subapically, in an inverted funnel-like portion (Fig.3D).  
 Taxonomic notes. This new species is placed in the orophila species group by having a pair of dorsolateral processes on segment VIII. Alisotrichia froehlichi sp. nov. is most similar to A. kanukua Harris & Flint, 2002 and A. dilatata sp. nov. because they share the segment X, in dorsal view, with arched lateral margins and apex slightly concave, and segment VIII, in lateral view, with rounded apex, and in ventral view, with a mesal Y-shaped incision and paired lateral V-shaped incisions. However, A. froehlichi sp. nov. can be distinguished by the presence of the ventromesal process on abdominal segment VII, and by the posterior margin of the segment VIII, in ventral view, with a pair of short acute processes, directed inwards, arising at the edge of the mesal incision (Fig. 3B). In addition, the posterior margin of segment VIII, in ventral view, also bears shallow lateral incisions, but in this new species they are shallower than in others (Fig. 3B). The general aspect of the phallus is also diagnostic, with basal and sclerotized portion resembling a shovel and apical region mostly membranous (Fig. 3D).   
 Etymology: This species is named in honor of Dr. Claudio G. Froehlich, in reference to his important contributions to the knowledge of Neotropical aquatic insects.   
 Distribution: Brazil (Sergipe). Atlantic Forest biome.   
 Material examined. Holotype male: BRAZIL: Sergipe, Itabaiana, Parque Nacional da Serra de Itabaiana, Riacho dos Negros, 10°44’51”S, 37°20’24”S, 202 m, 17.vi.2014, Pennsylvania trap, D.M. Takiya, A.P.M. Santos, W.R.M. Souza & A.C. Domahovski leg. (DZRJ).   
 Paratypes: same data as holotype, 2 males (DZRJ), 2 males (MNRJ), 2 males (INPA), 2 males (UFBA); same data as holotype, but Parque Nacional da Serra de Itabaiana, Riacho Água Fria, 10°45’17”S, 37°20’32.4”W, 196 m, 17–19.vi.2014, D.M. Takiya, A.P.M.Santos, W.R.M. Souza & A.C. Domahovski leg., 2 males (DZRJ).
description: Published as part of Alves, André Almeida, Takiya, Daniela Maeda & Santos, Allan Paulo Moreira, 2023, Five new species of Alisotrichia Flint, 1964 (Trichoptera: Hydroptilidae: Leucotrichiinae) from Northeastern Brazil, pp. 1-11 in Revista Brasileira de Entomologia (e 20230073) (e 20230073) 67 on pages 2-4, DOI: 10.1590/1806-9665-RBENT-2023-0073, http://zenodo.org/record/13197528