Bruggmannia capixaba, Maia, 2023

Maia, Valéria Cid, Jr, Milton de Souza Mendonça & Espinheira, Ivana Hortélio Leão, 2023, Three new species of Bruggmannia Tavares, 1906 (Diptera: Cecidomyiidae) from Brazil and description of male and larva of B. monteiroi Maia & Couri, 1993, Revista Brasileira de Entomologia (e 20220097) 67 (1), pp. 1-19 : 2-3

Bruggmannia capixaba, Maia , sp. n.

urn:lsid:zoobank.org:act:82D9BBFD-571A-4DDD-A39A-F54FD066FED3 Description. Male.2.0- 2.7 mm long (n=4).Head ( Fig. 2a ): eye facets circular, closely appressed; antennae:scape trapezoidal, setose, pedicel globoid, setose, flagellomeres cylindrical, node microtrichose and neck microtrichose, flagellomere node 5 times the length of neck (n=3); 1 st and 2 nd flagellomeres connate; circumfila wavy ( Fig. 2b ); frons with 17-18 setae (n=3); mouth parts: labrum long-attenuate; hypopharynx of the same shape of labrum, with long anteriorly directed lateral setulae; labella elongate-convex, with lateral and three mesal setae each; palpus: 1 st segment globoid, slightly shorter than 2 nd segment, 2 nd and 3th segments claviform and subequal in lenght, all segments with setae and scales. Thorax: scutum with two dorsocentral rows of setae with scales intermixed, setae more abundant anteriorly and two rows of lateral setae, with scales intermixed; scutellum with setae subdistally; anepimeron with some setae and scales; other pleura bare; wing ( Fig. 2c ) length (from arculus to apex): 1.70–2.00 mm (n=4); legs broken in all specimens immediately after first tarsomere. Abdomen ( Fig. 2d ): 1 st –7 th tergites sclerotized, rectangular with posterior row of setae, few lateral setae, scales scattered, basal pair of trichoid sensilla not visible; 8 th tergite not visible; 2 nd –8 th sternites rectangular with posterior row of setae, numerous setae at midlength, lateral setae present, scales scattered, a basal pair of trichoid sensilla. Terminalia ( Fig. 3a ):

papillae (two with setae and one bare) near base of each palpus; upper cephalic margin thickened laterally, face with lateral projection, head integument grainy just below antennal bases and around upper facial horns, except below them. Thorax: prothoracic spiracle setiform, curved, relatively short, 0.12 mm long, 2.0 times as long as flagellomeres width ( Fig. 4b ), prothorax with three pairs of dorsal papillae and two pairs of lateral papillae, lateral projection just below prothoracic spiracles with grainy integument ( Fig. 4b ). Abdomen: spiracles not elongated, 2 nd –8 th segments with dorsal spines near anterior margin, arranged only centrally, spines in the 2 nd segment rudimentary, shorter than those of 3 rd- 8 th segments ( Fig. 4c ), integument ventrally sculptured ( Fig. 4d ). Last segment with two terminal conical projections far apart ( Fig. 4e ) (pupal sex not determined, all specimens similar to each other).

Larva unknown.

Gall: on leaves, globose, pink, with trichomes, and one-chambered on Guapira pernambucensis ( Fig. 4f ).

Etymology. The word “capixaba ” means native of the state of Espírito Santo.

Material Examined. Holotype male. Brazil, Espírito Santo, Guarapari , PEPCV (Parque Estadual Paulo César Vinha) , 2007, Bregonci & Polycarpo col., MNRJ . Paratypes: same locality, date and collector as holotype, 3 males, 2 females, 5 pupal exuviae, MNRJ .

gonocoxite hemispherical, setose, setae more abundant at the apex, microtrichose, 2.7 times the length of gonostylus; gonostylus squarish with a row of setae just below teeth, scattered setae, microtrichose; cerci separate, riniform, setose, microtrichose; hypoproct bilobed, setose, microtrichose; aedeagus glossiform, gonocoxal lobes very short.

Female. 2.7-2.9 mm long (n=2).Circumfila less sinuous than in male, with two connected rings ( Fig. 3b ); frons with 18 setae (n=1); labella elongate-convex, 1.5 times as long as wide (n=1); palpus: 1 st segment globoid, conspicuously shorter than 2 nd segment; wing length (from arculus to apex): 1.95–2.10 mm (n=4); legs broken in all specimens immediately after first tarsomere. Abdomen ( Fig. 3c ): 1 st –7 th tergites as in male; 8 th tergite sclerotized, laterally notched, with distal row of setae, scales scattered, basal pair of trichoid sensilla not visible; 2 nd –6 th sternites rectangular with posterior row of setae, numerous setae at midlength, lateral setae present, scales scattered, and a basal pair of trichoid sensilla; 7 th sternite 1.5 times as long as 6 th sternite, rectangular with posterior row of setae, numerous setae at midlength, lateral setae present, scales scattered, and a basal pair of trichoid sensilla; 8 th sternite not sclerotized; ovipositor ( Fig. 3d ) soft, short, 1.85 times the length of 7 th sternite (n=1); cerci tiny with some short setae.

Pupa ( Fig. 4a ), 3.1-3.5 mm long (n=3). Integument brownish. Head ( Fig.4b ): a pair of antennal papillae present, antennal horn conical, short, with outer and inner margins smooth; apical seta 0.4 times the length of prothoracic spiracle; upper facial horns conical; lower facial horns conical; two pairs of lower facial papillae:one pair with seta, a triplet of Distribution: Espírito Santo (Guarapari).

Comments. This species is unique in having glossiform edeagus; ovipositor 1.85 times the length of 7 th sternite; setiform, curved, relatively short prothoracic spiracles; lateral projection just below prothoracic spiracles; short and sparse abdominal spines. Other two species of Bruggmannia associated with Guapira have glossiform aedegus – B. chapadensis Proença & Maia, 2018 and B. gaucha Maia & Mendonça , sp. n., but they differ from each other mainly in the following characters: relative length of ovipositor (in B. capixaba 1.85 x length of 7 th sternite, in B. chapadensis 1.4 x and in B. gaucha 1.7 x), shape of upper facial horn (conical in B. capixaba and B. gaucha , semicircular in the other two species), length of prothoracic spiracle (longer in B. capixaba than in the others), arrangement of dorsal spines (only centrally in B. capixaba and B. chapadensis , along the entire width of 2 nd to 8 th abdominal tergites in B. gaucha ).

Figures

Figure 2 Bruggmannia capixaba, sp. n., male: a) Head, frontal view, b) 3rd flagellomere, c) Wing, d) 5th-8th abdominal segments, lateral view.

Figure 3 Bruggmannia capixaba, sp.n.: a) Male terminalia, dorsal view, b) Female 3rd flagellomere,c) Female,7th – 8th abdominal segments,ventral view,d) Ovipositor,ventral view.

Figure 4 Bruggmannia capixaba, sp.n., pupa:a) Generalaspect,dorsal view,b) Head and prothoracic spiracles,ventral view, c) 7th abdominal segment, dorsal view,d) 7th abdominal segment, ventral view, e) Terminal segment, ventral view, f) Gall, general aspect (from Bregonci et al., 2010, original photo without scale).