Anthomyza pallida (Zetterstedt, 1838)

Roháćek, Jindřich & Barber, Kevin N., 2016, Nearctic Anthomyzidae: a monograph of Anthomyza and allied genera (Diptera), Acta Entomologica Musei Nationalis Pragae (suppl.) 56, pp. 1-412 : 142-144

publication ID	https://doi.org/ 10.5281/zenodo.4272829
publication LSID	urn:lsid:zoobank.org:pub:E95E58A5-E0F1-4237-9D7C-4A81BB3120DD
DOI	https://doi.org/10.5281/zenodo.4339666
persistent identifier	https://treatment.plazi.org/id/03FB87A9-FF76-FF16-FF71-69BFFB82FB76
treatment provided by	Felipe
scientific name	Anthomyza pallida
status

Treatment

Key to identincation of the Nearctic species of the Anthomyza pallida View in CoL group

1 Male. ........................................................................................................................ 2

– Female. .................................................................................................................... 7

2(1) Gonostylus short, in widest extension (laterocaudal) view suboblong and with 3 distinct teeth on apex ( Fig. 263 View Figs 260–266 ) but in lateral view pointed ( Fig. 261 View Figs 260–266 ); pregonite (in lateral view) with broad trapezoidal anterior tooth-like process ( Fig. 262 View Figs 260–266 ); nlum of distiphallus subterminally (in front of slender curved end) with a distinctive dorsal tooth ( Fig. 266 View Figs 260–266 ). ....................................................................... A. pengellyi View in CoL sp. nov.

– Gonostylus long and slender, more or less tapered towards apex and with various number of teeth (0–4) ( Figs 286 View Figs 280–286 , 328 View Figs 321–328 , 368 View Figs 361–368 ); pregonite with anterior tooth-like process more slender, subtriangular and pointed ( Figs 282 View Figs 280–286 , 324 View Figs 321–328 , 364 View Figs 361–368 ); nlum of distiphallus sometimes with a dorsal lobe subapically, never with a tooth ( Figs 284 View Figs 280–286 , 322 View Figs 321–328 , 362 View Figs 361–368 ). ......................................................................................................................... 3

3(2) Gonostylus terminally with 4 distinct teeth ( Fig. 286 View Figs 280–286 ) that are also visible in lateral view ( Fig. 281 View Figs 280–286 ); aedeagal part of folding apparatus laterally with a few spine-like excrescences ( Fig. 285 View Figs 280–286 ). ......................................................... A. mcalpinei View in CoL sp. nov.

– Gonostylus terminally simple ( Figs 328 View Figs 321–328 , 349 View Figs 343–349 ) or with teeth reduced ( Figs 303 View Figs 299–305 , 368 View Figs 361–368 ); aedeagal part of folding apparatus laterally with a group of small to minute dark tubercles ( Figs 304 View Figs 299–305 , 326 View Figs 321–328 , 348 View Figs 343–349 , 367 View Figs 361–368 ). ........................................................................ 4

4(3) Thorax strikingly bicolourous: mesonotum mostly dark brown with characteristic bluish grey microtomentum, pleura contrastingly yellow ( Figs 296, 297 View Figs 294–298 ). Gonostylus relatively short ( Fig. 303 View Figs 299–305 ), in lateral view curved, with concave anterior side ( Fig. 300 View Figs 299–305 ); postgonite nat, distally broad ( Fig. 302 View Figs 299–305 ); saccus of distiphallus distally voluminous ( Fig. 304 View Figs 299–305 ). ......................................................... A. pullinotum View in CoL sp. nov.

– Thorax colouration ranging widely from entirely yellow to entirely grey with microtomentum less distinct and pale grey to brownish grey. Gonostylus longer, in lateral view with anterior side convex or slightly concave ( Figs 323 View Figs 321–328 , 344 View Figs 343–349 ) or concave but in the latter case long and very slender ( Fig. 363 View Figs 361–368 ); postgonite narrower, not markedly broadened distally ( Figs 324 View Figs 321–328 , 345 View Figs 343–349 , 364 View Figs 361–368 ); saccus of distiphallus more slender ( Figs 326 View Figs 321–328 , 348 View Figs 343–349 , 367 View Figs 361–368 ). ......................................................................................................... 5

5(4) Gonostylus apically rather broad, usually not pointed ( Fig. 328 View Figs 321–328 ), rarely acute but always curved medially in distal third ( Fig. 321 View Figs 321–328 ); pregonite with additional smaller angle ( Fig. 324 View Figs 321–328 ) behind anterior tooth; connecting sclerite distally with a few robust spines ( Fig. 326 View Figs 321–328 ); nlum subterminally with a distinctive dark subventral tooth ( Fig. 327 View Figs 321–328 ); upper orbits entirely yellow; femora sometimes brownish. .............................. .................................................................................... A. concolor (Thomson, 1869) View in CoL

– Gonostylus apically pointed ( Figs 349 View Figs 343–349 , 368 View Figs 361–368 ) and slightly curved medially rather regularly along entire length ( Figs 343 View Figs 343–349 , 361 View Figs 361–368 ); pregonite lacking additional projection behind anterior tooth ( Figs 345 View Figs 343–349 , 364 View Figs 361–368 ); connecting sclerite distally at most with small tubercles ( Figs 348 View Figs 343–349 , 367 View Figs 361–368 ); nlum subterminally with a small tooth or short spine ( Figs 347 View Figs 343–349 , 362 View Figs 361–368 ); upper orbits yellow, sometimes brownish from occiput past level of dorsomedial corner of eye as far as posterior ors; femora yellow. ............................... 6

6(5) Epandrium broad ( Fig. 343 View Figs 343–349 ); gonostylus shorter and basally wider ( Fig. 349 View Figs 343–349 ), in lateral view with distinctly convex anterior side ( Fig. 344 View Figs 343–349 ); saccus of distiphallus with 4 large spines ( Fig. 348 View Figs 343–349 ); upper orbits entirely yellow. ....... A. occidentalis View in CoL sp. nov.

– Epandrium narrower ( Fig. 361 View Figs 361–368 ); gonostylus longer and more slender, narrow also basally ( Fig. 368 View Figs 361–368 ), in lateral view with concave anterior side ( Fig. 363 View Figs 361–368 ); saccus of distiphallus with 5 smaller spines ( Fig. 367 View Figs 361–368 ); upper orbits often brownish from occiput past level of dorsomedial corner of eye as far as posterior ors. ................................. ................................................................................................ A. vockerothi View in CoL sp. nov.

7(1) 7th abdominal segment with S7 separate ( Figs 270 View Figs 267–273 , 289 View Figs 287–293 , 374 View Figs 369–375 ). .............................. 8

– 7th abdominal segment with S7 anteriorly fused to T7 forming with it tergosternum T7+S7 ( Figs 308 View Figs 306–312 , 331 View Figs 329–335 , 352 View Figs 350–356 and 377 View Figs 376–380 )......................................................................10

8(7) T7 very narrow, elongate ( Figs 370 View Figs 369–375 , 379 View Figs 376–380 ), laterally without microtomentum and strikingly glossy and with distinctive posterolateral lobes ( Fig. 379 View Figs 376–380 ); also S7 and S8 ( Fig. 374 View Figs 369–375 ) and T8 strikingly elongate, the latter anteromedially deeply incised ( Fig. 370 View Figs 369–375 ); upper orbits often brownish from occiput past level of dorsomedial corner of eye as far as posterior ors. ................................................................ A. vockerothi View in CoL sp. nov.

– T7 broader ( Figs 268 View Figs 267–273 , 287 View Figs 287–293 ), laterally distinctly microtomentose and posterolaterally simple ( Figs 269 View Figs 267–273 , 380 View Figs 376–380 ); S7 and S8 ( Figs 270 View Figs 267–273 , 289 View Figs 287–293 ) and T8 shorter, the latter without deep anteromedial incision ( Figs 268 View Figs 267–273 , 287 View Figs 287–293 ); upper orbits entirely yellow. ............. 9

9(8) T7 dorsally shortened because of deep anteromedial incision ( Fig. 287 View Figs 287–293 ), and its anteroventral corners projecting as pigmented lobes far onto ventral side almost meeting medially ( Fig. 289 View Figs 287–293 ); 7th spiracle situated in membranous emargination at margin of T7 ( Figs 289 View Figs 287–293 , 380 View Figs 376–380 ). T8 broad and pale ( Fig. 287 View Figs 287–293 ); T10 pale and with 2–3 pairs of setae (1 long) ( Fig. 287 View Figs 287–293 ); spermatheca with deep terminal invagination and distinct blunt spines around duct insertion ( Fig. 293 View Figs 287–293 ). ........................ A. mcalpinei View in CoL sp. nov.

– T7 dorsally longer, with a shallow anteromedial emargination ( Fig. 268 View Figs 267–273 ), and its anteroventral corners less projecting onto ventral side ( Fig. 270 View Figs 267–273 ); 7th spiracle embedded in T7 ( Figs 269, 270 View Figs 267–273 ). T8 narrow and dark ( Fig. 268 View Figs 267–273 ); T10 also dark and with single pair of long setae ( Fig. 268 View Figs 267–273 ); spermatheca with shallow terminal invagination and minute spinulae around duct insertion ( Fig. 267 View Figs 267–273 ). ............ A. pengellyi View in CoL sp. nov.

10(7) Mesonotum dark brown with characteristic bluish grey microtomentum, pleura contrastingly yellow ( Fig. 297 View Figs 294–298 ). Tergosternum T7+S7 shorter ( Fig. 378 View Figs 376–380 ), with relatively small, narrow and nat part formed by original S7, the latter narrower anteriorly and narrowly connected with enlarged T7 ( Fig. 308 View Figs 306–312 ); spermatheca with terminal invagination wider and shorter, base with spines larger and more numerous ( Fig. 310 View Figs 306–312 ). .... ............................................................................................... A. pullinotum View in CoL sp. nov.

– Thorax colouration different, with microtomentum less distinct and pale grey to brownish grey. Tergosternum T7+S7 longer ( Figs 376, 377 View Figs 376–380 ), with large, broad and ventrally convex part formed by original S7, the latter wider anteriorly and broadly connected with T7 ( Figs 331 View Figs 329–335 , 352 View Figs 350–356 ); spermatheca with terminal invagination narrow and deep, base with small and fewer spinulae ( Figs 333 View Figs 329–335 , 350 View Figs 350–356 ). ............................ 11

11(10) T6 short and more transverse ( Fig. 330 View Figs 329–335 ); ventral part of T7+S7 with original S7 distinctly convex and separated laterally from T7 by very narrow membranous slit and 7th spiracle embedded in T7 far from this slit ( Figs 331 View Figs 329–335 , 376 View Figs 376–380 ); dorsal part of T7+S7 with short thick setae ( Fig. 330 View Figs 329–335 ); ventral internal sclerites in female genital chamber close to each other ( Fig. 332 View Figs 329–335 ); spermatheca with nne pointed spinulae on base ( Fig. 329 View Figs 329–335 ); femora sometimes brownish. ........................... A. concolor (Thomson, 1869) View in CoL

– T6 long, slightly transverse ( Fig. 351 View Figs 350–356 ); T7+S7 ventrally less convex and separated from T7 by wider membranous slit almost reaching to anterior margin of synsclerite and 7th spiracle embedded close to this slit ( Figs 352 View Figs 350–356 , 377 View Figs 376–380 ); dorsal part of T7+S7 with longer and nner setae ( Fig. 351 View Figs 350–356 ); ventral internal sclerites in female genital chamber more distant from each other ( Fig. 353 View Figs 350–356 ); spermatheca with blunt spinulae on base ( Fig. 350 View Figs 350–356 ); femora entirely yellow. ......................... A. occidentalis View in CoL sp. nov.