Asphondylia gaucha Maia, 2023

Maia, Valéria Cid, Mendonça, Milton de Souza & Mascarenhas, Bernardo José de Araújo, 2023, Two new species of Asphondylia Loew, 1850 (Diptera, Cecidomyiidae) on Asteraceae from Brazil, Papéis Avulsos de Zoologia 63, pp. 1-12 : 2

Asphondylia gaucha Maia , sp. nov.

( Figs. 1-4 )

Diagnosis: Male hypoproct deeply bilobed; ovipositor with needle part 2.0-2.2 X length 7 th sternite; pupa: antennal horn with apical part 1.5 X length of basal part, upper frontal horn simple, 0.2 X length of antennal horn, lower frontal horn tridentate, 0.1 X length of antennal horn, teeth not aligned, lateral teeth conspicuously above mesal tooth, 8 th abdominal segment with 8-9 dorsal spines in the posterior row.

Male: Body: 3.20-4.60 mm long (n = 5). Head ( Fig. 1A ): globoid, 0.55-0.65 mm long 0.55-0.65 mm wide (n = 5), eye facets hexagonal, closely appressed; antennae: flagellomeres 1 and 2 not fused, scape truncated conical, setose, 0.14 mm long, 0.07 mm wide (n = 3), pedicel globose, setose, 0.07-0.075 mm long, 0.06-0.065 mm wide (n = 3), 1 st- 11 th flagellomeres cylindrical, 12 th conical ( Fig. 1B ), circumfila longitudinally wavy ( Fig. 1C ), proportion flagellomere neck-node: 1:10.5; frons with 26-32 (N = 5); mouth parts: labrum long-attenuate, 0.06-0.08 mm long, 0.05-0.06 mm wide (N = 5); hypopharynx of the same shape of labrum, with long lateral setulae, anteriorly directed, 0.22 mm long, 0.05-0.06 mm wide; labella elongate and convex, 0.08-0.10 mm long, 0.03-0.05 mm wide (N = 1), with lateral and mesal setae; palpus 0.21-0.25 mm long (N = 5): 1 st segment globoid, 2 nd and 3 rd segments cylindrical, all segments with setae. Thorax: scutum with two dorsocentral rows of setae, setae more abundant anteriorly, and irregular group of lateral row of setae on each side, scales intermixed; scutellum with scattered setae;anepimeron setose and anepisternum setose;remaining pleural sclerites bare.Legs:first tarsomere of each leg with an apical hook-like projection 0.03 mm long (N = 14) ( Fig. 1D ), tarsal claws curved beyond midlength, isomorphic, empodium shorter than claws ( Fig. 1E ); wing: length 2.90-3.20 mm (N = 5) ( Fig. 1F ). Abdomen ( Fig. 2A ): 1 st- 7 th tergites sclerotized, rectangular with a posterior row of setae, few lateral setae, mostly covered elsewhere with scales, and basal pair of trichoid sensillae;8 th tergite band-like with basal pair of trichoid sensillae as vestiture; 2 nd- 8 th sternites sclerotized, rectangular,2 nd- 7 th sternites with a posterior row of setae, several setae at midlength and laterally, mostly covered elsewhere with scales, and basal pair of trichoid sensillae; 8 th sternite entirely covered with setae, more abundant posteriorly, mostly covered elsewhere with scales and basal pair of trichoid sensillae. Terminalia ( Figs. 2B ): gonocoxite short and stout, 0.15-0.18 mm long, 0.10 mm wide (N = 4), gonostylus spherical, 0.06-0.07 mm long, 0.06-0.07 mm wide (N = 4), teeth 0.01 mm long, 0.03 mm wide (N = 2), hypoproct deeply bilobed, lobes conical; cercus rounded at apex; aedeagus conical.

Female: Body length: 4.10-4.50 mm (n = 4). Head: 0.60 mm long, 0.60-0.70 mm wide (n = 4), eye facets hexagonal, closely appressed;antennae:scape 0.14-0.16 mm long, 0.07 mm wide (n = 3), pedicel 0.06-0.08 mm long, 0.07-0.08 mm wide (n = 3), 1 st- 11 th flagellomeres cylindrical, 12 th spheroid ( Fig. 3A ), circumfila comprising two longitudinal bands connected sub basally and apically by two transverse bands ( Fig. 3B ); 27-30 frontal setae; mouthparts: labrum 0.10-0.11 mm long, 0.06 mm wide (n = 2), hypopharynx 0.16-0.18 mm long, 0.06 mm wide (n = 2), labellum 0.09-0.10 mm long, 0.04 mm wide at midlength (n = 2), palpus 0.27-0.29 mm long (n = 2): 1 st segment globose, 2 nd segment cylindrical, 3 rd segment claviform. Thorax: apical projection of first tarsomere with 0.04 mm long (N = 4) ( Fig. 3C ); tarsal claws more robust than in male ( Fig. 3D ); wing length: 4.00- 4.10 mm (N = 3) ( Fig. 3E ). Abdomen ( Fig. 3F ): 1 st- 8 th tergites sclerotized, 1 st- 7 th tergites rectangular with a posterior row of setae, few lateral setae, basal pair of trichoid sensillae and mostly covered elsewhere with scales, 8 th tergite with distal margin with lobes 0.16-0.17 mm long (N = 3), 2 nd- 6 th sternites as in male; 7 th sternite 0.57-0.67 mm long, 1.75-1.9 X length sternite 6 (N = 2), setose (except basally), setae more abundant distally, and mostly covered elsewhere with scales; sternite 8 not sclerotized; ovipositor: needle part 1.25-1.35 mm long, 2.0-2.2 X length sternite 7 (n = 2). Other characters as in male.

Pupa ( Fig. 4A ): Color: brownish. Body length: 3.95-4.70 mm (N = 2). Head ( Fig. 4B ): dorsal plate 0.65 mm long, 0.15 mm wide (n = 1); face with lateral projection; antennal horn triangular, 0.37-0.38 mm long (N = 3), apical part 1.5 X length of basal part, inner margin serrated; apical seta 0.06 mm long, 0.66 X wide of antennal flagellomere (N = 1); upper facial horn simple, triangular, 0.07 mm long (N = 3), as long as width of basal flagellomere; lower facial horn tridentate, 0.03 mm long (N = 3), 0.1 X length of antennal horn, teeth triangular, not aligned, lateral teeth conspicuously above mesal tooth; two pairs of lower facial papillae: one pair setose, the other bare; three pairs of lateral facial papillae: one pair setose, two bare; upper cephalic margin thickened laterally. Thorax: integument wrinkly ( Fig. 4C ), prothoracic spiracle short, 0.08 mm long, setiform, curved (N = 3). Abdomen ( Fig. 4D ): segments 2-8 with transverse rows of crescent dorsal spines; posterior row with 16-25 spines in the 2 nd segment, 21-26 in the 3 rd, 21-26 in the 4 th, 21-25 in the 5 th, 20-25 in the 6 th, 14-19 in the 7 th and 8-9 in the 8 th (N = 4).

Figures

Figure 1. Asphondylia gaucha, sp. nov., male: (A) Head, frontal view, (B) 9th-12th flagellomeres, (C) 5th flagellomere, (D) Hindleg, 1st tarsomere, lateral view, (E) Foreleg,tarsal claw and empodium,lateral view,(F)Wing.

Figure 2. Asphondyliagaucha, sp.nov., male:(A) 3rd abdominal segments to terminalia,lateral view,(B)Terminalia,dorsal view.

Figure 3. Asphondylia gaucha, sp. nov., female:(A) 7th-12th flagellomeres,(B) 5th flagellomere,(C) Hindleg,1st tarsomere,lateral view,(D) Midleg, tarsal claw and empodium,lateral view,(E)Wing,(F) Abdomen,lateral view.

Figure 4. Asphondylia gaucha, sp. nov., pupa: (A) General aspect, (B) Head, ventral view, (C) Thorax, dorsal view, (D) 5th-8th abdominal segments, dorsal view, (E) Gall,general aspect.