Anthomyza shewelli Roháćek & Barber 2016, sp. nov.
Acta Entomologica Musei Nationalis Pragae
Nearctic Anthomyzidae: a monograph of Anthomyza and allied genera (Diptera)
Figs 2–3. Nearctic species of the genus Anthomyza. 2 – A. shewelli sp. nov., a pair (male on left) on leaf of Carex sp. (Canada:Ontario:Dubreuilville, Magpie River), body length ca.2.4 mm (male) and 3.1 mm (female); 3 –A.mcalpinei sp. nov., living male, laterally (Canada:Ontario:Sault Ste. Marie, Finn Hill), body length ca.2.8 mm. Photo by J. Roháček.
Figs 456–459. Anthomyza shewelli sp. nov. and its habitat. 456 – A. shewelli sp. nov. in copula on Equisetum stem, body length ca. 2.4 mm and 3.1 mm; 457 – same, male laterally, body length ca. 2.5 mm (Canada: Ontario: Pancake Bay Prov. Park); 458 – female on leaf of Carex, body length ca. 3.2 mm (Ontario: Dubreuilville env.); 459 – marshy riverbank of Mississagi River (Canada: Ontario) with predominant Carex and Equisetum, habitat of A. shewelli in the type locality. Photo by K. N. Barber (Fig. 459) and J. Roháček (others).
Figs 485–486. Wings of the Nearctic species of the Anthomyza tschirnhausi group. 485 – A. shewelli sp. nov., paratype male, wing length 2.7 mm (Canada: Ontario); 486 – A. gilviventris sp. nov., paratype male, wing length 3.0 mm (Canada: Ontario). Photo by K. N. Barber.
Figs 508–515. Gonostyli (Figs 508–512) of paratypes ventrolaterocaudally (in widest extension) and female postabdominal structures (Figs 513–515) of the Nearctic species of the Anthomyza tschirnhausi group. 508 – A. shewelli sp. nov.(Canada:Ontario); 509 – same species (USA:Montana); 510 – A.gilviventris sp.nov.(Canada:British Columbia); 511, 512 – same species (USA: Colorado); 513 – A. gilviventris sp.nov., paratype female,dark form (USA:Colorado), 8th abdominal segment with internal sclerites, laterally; 514 – same specimen, spermatheca; 515 – same specimen, 7th and 8th abdominal segments, dorsally. Scales = 0.1 mm (Fig. 513), 0.2 mm (Fig. 515) and 0.05 mm (others).
Figs 481–484. Primary types and females of the Nearctic species of the Anthomyza tschirnhausi group. 481 – A. shewelli sp. nov., holotype male, laterally, body length 2.30 mm; 482 – A. gilviventris sp. nov., dark form, paratype female, laterally, body length 3.42 mm (USA: Colorado); 483 – A.gilviventris sp. nov., holotype male, laterally, body length 2.89 mm; 484 – same species, topotypic paratype female, laterally, body length 3.57 mm. Photo by J. Roháček.
Figs 460–466. Anthomyza shewelli sp. nov., paratype male, typical form (Canada: Ontario). 460 – external genitalia, caudally; 461 – apex of nlum, subventrally; 462 – external genitalia, laterally; 463 – hypandrial complex, laterally; 464 – transandrium, caudally; 465 – aedeagal complex, laterally; 466 – gonostylus, ventrolaterocaudally (widest extension). Scales = 0.05 mm (Figs 461, 466) and 0.1 mm (others).
Figs 467–473. Anthomyza shewelli sp. nov., paratype male, darkest form (USA: Idaho). 467 – external genitalia, caudally; 468 – apex of nlum, subventrally; 469 – external genitalia, laterally; 470 – hypandrial complex, laterally; 471 – transandrium, caudally; 472 – aedeagal complex, laterally; 473 – gonostylus, ventrolaterocaudally (widest extension). Scales = 0.05 mm (Figs 468, 473) and 0.1 mm (others).
Figs 474–480. Anthomyza shewelli sp. nov., paratype female, typical form (Canada: Ontario). 474 – postabdomen, dorsally; 475 – the same, ventrally; 476 – distal part of female genital chamber, laterally; 477 – end of postabdomen with internal sclerites, laterally; 478 – internal sclerites and S8, ventrally (micropubescence omitted); 479 – spermathecae; 480 – spermatheca of another specimen. Scales = 0.2 mm (Figs 474, 475), 0.1 mm (Figs 476–478) and 0.05 mm (Figs 479, 480).
Figs 501–507. Anthomyza gilviventris sp. nov., dark form, paratype female (USA: Montana). 501 – spermatheca; 502 – postabdomen, dorsally; 503 – the same, ventrally; 504 – distal part of female genital chamber, laterally; 505 – spermatheca; 506 – end of postabdomen with internal sclerites, laterally; 507 – internal sclerites and S8, ventrally (micropubescence omitted). Scales = 0.05 mm (Figs 501, 505), 0.2 mm (Figs 502, 503) and 0.1 mm (others).
Figs 494–500.Anthomyza gilviventris sp. nov., paratype female (Canada:Ontario). 494 – spermatheca; 495 – postabdomen, dorsally; 496 – the same, ventrally; 497 – distal part of female genital chamber, laterally; 498 – spermatheca; 499 – end of postabdomen with internal sclerites, laterally; 500 – internal sclerites and S8, ventrally. Scales = 0.05 mm (Figs 494, 498), 0.2 mm (Figs 495, 496) and 0.1 mm (others).
Figs 419–421. Living Anthomyza gibbiger sp. nov. and its habitat. 419 – A. gibbiger sp. nov., male, pale form, dorsally, body length ca. 2.6 mm; 420 – same specimen, laterally (Canada: Ontario: Sault Ste. Marie, Finn Hill); 421 – wet meadow at Sault Ste. Marie (Finn Hill), habitat of three species of the A. neglecta group, viz. A. gibbiger, A. orthogibbus and A. dichroa. Photo by J. Roháček.
Figs 547–550. Anthomyza vulgaris sp. nov. and some of its habitats. 547 – bubbling female on Carex leaf laterally, body length ca. 2.8 mm (Canada: Ontario: Sault Ste Marie); 548 – pure growth of Scirpus microcarpus on exposed lake bottom (Canada: Ontario: Rocky Island Lake); 549 – graminoid vegetation on alvar near Misery Bay (Canada: Ontario: Manitoulin I.); 550 – anterior half of the same female as in Fig. 547, dorsally. Photo by J. Roháček.