Corynoneura floridaensis, Fu & Saether, 2012

Fu, Yue & Saether, Ole A., 2012, 3536, Zootaxa 3536, pp. 1-61 : 29-31

Corynoneura floridaensis sp. n.

( Figs 14 A–G, Figs 15 A–F)

Corynoneura sp. B Epler, 2001 : 7.47

Corynoneura celeripes (Winnertz) Simpson & Bode, 1980: 34

Corynoneura “ celeripes ” (sensu Simpson & Bode, 1980) Bolton, 2007: 28

Type material: Holotype male, with associated larval and pupal exuviae, USA: Florida, Suwannee County, Suwannee River at State Road 51 near Luraville , 3.vi.1993, J.H. Epler, R A. Mattson ( ZMBN Type no. 457) . Allotype female, with associated larval and pupal exuviae, USA: Florida, Hamilton County, Withlacoochee River above Suwannee River , 3.vi.1993, J.H. Epler, R. A. Mattson ( ZMBN) . Paratypes: 4 males, 4 females, 4 larval and 4 pupal exuviae as allotype; 3 males, 2 pupal exuviae, 1 male with pupal exuviae as allotype except for 11.xii.1995, 9.xii.1996, and 7.iii.2000; USA: Florida, Gilchrist County, Suwannee River near Pock Bluff at SR 340 , 1 male with pupal exuviae, 6.ix.2001, J.H. Epler; 3 males, 3 pupal and 3 larval exuviae, USA: Ohio, Delaware County, Olentangy River Highbanks Park, 24.ix.1987, M J. Bolton ( ZMBN, MJB, JHE) .

Etymology. Named after the type locality.

Diagnostic characters. The adult male is characterized by antenna with 11 flagellomeres, AR 0.30–0.48, 0.36; superior volsella well developed, triangular; inferior volsella elongate rectangular with broadly rounded distal angle and placed caudally; gonostylus curved. The adult female has AR 0.37, 2–3 transparent developed fused lateral lamellae on inner side of coxosternapodeme, and labia poorly developed. The pupa has no taeniate L-setae on tergites I–II; no shagreen on tergite I, tergites II–IX with fine shagreen and only tergites IV–VII with several hooklets; and 26–34, 31 taeniae in fringe of anal lobe. The larvae are separable by mentum with two median teeth, the lateral tooth adjacent to median tooth very small, basal segment yellowish; second segment light brown, other segments dark brown; length of antenna/length of head 1.32–1.38, 1.35; and head capsule smooth, unsculptured.

Male (n = 8–10)

Total length 0.98–1.73, 1.32 mm. Wing length 0.57–0.65, 0.62 mm. Total length/wing length 1.6–2.4, 1.8. Wing length/profemur length 2.8–3.0, 2.9.

Coloration. Head brown. Antenna and legs yellowish. Thorax and abdomen yellowish brown.

Head. Antenna ( Fig. 14 C) with 11 flagellomeres, ultimate flagellomere 75–133, 97 µm, AR 0.30–0.48, 0.36; ultimate flagellomere apically expanded, with about 8–12, 10 apical sensilla chaetica; longest antennal seta 220– 240, 232 µm. Temporals absent. Tentorium, stipes and cibarial pump as in Fig. 14 B. Tentorium 99–127, 109 µm long; 10–16, 12 µm wide. Stipes 50–67, 56 µm long, 3–4 µm wide. Clypeus with 7–10, 8 setae. Length of palpomeres (in µ m): 6–11, 9; 10–15, 11; 14–18, 16; 19–28, 23; 46–59, 48. Palpomere 5/3 ratio: 2.6–3.5, 3.1.

Thorax. Dorsocentrals 4, prealars 2, supraalar 1. Scutellum with 2 setae. Anapleural suture 77–85, 83 µm long.

Wing ( Fig. 14 A). VR 2.6–3.2, 2.8. Cu/wing length 0.54–0.59, 0.57; C length 124–168, 139 µm long; Cu 372– 368, 336 µm long; C/wing length 0.22–0.26, 0.23; wing width/wing length 0.42–0.44, 0.43. Costa with 4–6 setae.

Legs. Fore trochanter with dorsal keel. Spurs of fore tibia 15–22, 19 µm long; of mid tibia 11–15, 13 µm and 8–10, 9 µm long; of hind tibia 25–37, 31 µm and 7–14, 11 µm long. Width at apex of fore tibia 14–17, 16 µm; of mid tibia 14–15 µm; of hind tibia (a) 28–35, 31 µm. Width of hind tibia 1 / 3 from apex (d) 14–17, 15 µm; elongation length (b) 33–36, 35 µm; length of maximum thickening (c 1) 59–75, 67 µm; total length of thickening (c 2) 97–104, 100 µm; a/d 1.9–2.1, 2.0; b/d 2.1–2.4, 2.3; c 1 /d 4.2–4.6, 4.4; c 2 /d 5.9–6.9, 6.6. Hind tibia ( Fig. 14 D) expanded, with comb of 15–16 setae, one seta near spur strongly hooked. Lengths and proportions of legs as in Table 12.

Hypopygium ( Fig. 14 E–F). Posterior margin of tergite IX with 4–6 long setae. Laterosternites IX with 1–2 long setae. Superior volsella triangular, anteriomedially separated. Inferior volsella low and placed caudally. Phallapodeme slightly curved, 25–41, 32 µm long. Transverse sternapodeme broad; 17–28, 21 µm wide. Attachment point of lateral sternapodeme with phallapodeme placed and directed caudally. Gonostylus apical curved, 21–35, 26 µm long; megaseta 3–4 µm long. HR 2.0–2.9, 2.3; HV 3.3–4.9, 4.6.

Female (n = 1)

Total length 0.92 mm. Wing length 0.58 mm. Total length/wing length 1.59.

Coloration. Head brown. Thorax and abdomen brown. Antenna and legs yellowish.

Head. AR 0.37. Length of flagellomeres (in µm): 25, 26, 25, 23, 36. Ultimate flagellomere with 9 sensilla chaetica. Clypeus with 6 setae. Palpomere lengths (in µm): 7, 10, 15, 17, 43. Palpomere 5/3 ratio 2.9.

Thorax. Dorsocentrals 4, prealars 2. Scutellum with 2 setae.

Wing ( Fig. 14 G). VR 2.1, two anal veins present, Cu 320 µm long, Cu/wing length 0.55, C 261 µm long, C/ wing length 0.45, wing width/wing length 0.44. Costa with 11 setae.

Legs. Fore trochanter with keel. Spurs of mid tibia 10 and 8 µm long, of hind tibia 25 and 11 µm long. Width at apex of mid tibia 14 µm, of hind tibia (a) 23 µm. Width of hind tibia 1 / 3 from apex (d) 12 µm, elongation length (b) 33 µm, length of maximum thickening (c 1) 81 µm, total length of thickening (c 2) 121 µm, a/d 1.9, b/d 2.8, c 1 /d 6.8, c 2 /d 10.1. Apex of hind tibia expanded, with comb of 15 setae, with S-shaped spur. Lengths and proportions of legs as in Table 13.

Abdomen. Number of setae on tergites not measurable.

Genitalia ( Figs 15 A–B). Tergite IX with 2 long caudal setae. Cercus 17 µm long, 10 µm wide. Notum 63 µm long. Gonocoxite with 1 long seta. Coxosternapodeme with 2–3 transparent fused lateral lamellae on inner side of coxosternapodeme. Seminal capsule 33 µm long; neck 7 µm long, 4 µm wide.