Mesembrinella serrata Whitworth, 2019
publication ID |
https://doi.org/10.11646/zootaxa.4659.1.1 |
publication LSID |
lsid:zoobank.org:pub:57309E14-0330-4ED7-BCDA-355EE6618215 |
DOI |
https://doi.org/10.5281/zenodo.5587044 |
persistent identifier |
https://treatment.plazi.org/id/03DA87E6-0FB9-FF56-FF19-BBFB3686F8C1 |
treatment provided by |
Plazi (2019-08-26 08:39:22, last updated 2024-11-26 00:25:35) |
scientific name |
Mesembrinella serrata Whitworth |
status |
sp. nov. |
Mesembrinella serrata Whitworth , sp. nov.
( Figs 89–90 View FIGURES 87–92 , 179–180 View FIGURES 173–182 , 232 View FIGURES 229–235 , 275 View FIGURES 266–279 , 319 View FIGURES 318–323 , 363 View FIGURES 350–369 , 404 View FIGURES 401–410 , 448 View FIGURES 439–453 , 480 View FIGURES 479–483 )
Diagnosis. A small fly averaging 9.2 mm (8–10/5) in length. Wing with section IV 0.44 of section III; distal 2/3 of wing along costa faintly infuscated; subcostal sclerite with long tan setae; abdomen bluish with faint white tomentum; usually kat 1:1. Male: epiphallus of normal length ( Fig. 179 View FIGURES 173–182 ); hypophallic lobes broad, pear-shaped in dorsal view, with coarse serrations ( Fig. 180 View FIGURES 173–182 ). Female T6 of WV shape ( Fig. 319 View FIGURES 318–323 ), with suture midway.
Description. Male. Head. Frons 0.028 (0.025 –0.030 /2) of head width at narrowest. Fronto-orbital, parafacial and gena yellow-gold; frontal vitta dark red; frontal setae ascending about 30% of distance to vertex, to where frontal vitta is obliterated; gena with horizontal row of brown setae midway, otherwise with small, scattered brown setae; postgena yellow with fine yellow setae; occiput dark with pale yellow tomentum and fine yellow setae; median occipital sclerite shiny dark brown; antenna entirely orange with whitish tomentum, arista tan; palpus typical; eye with median facets 4x size of lateral facets; ocellar triangle small, anterior ocellus 2x size of posterior ocelli; row of long tan supravibrissal setae ascending about 1/8 of distance to antennal base.
Thorax. Dorsum dark brown with golden brown tomentum and a pair of brown lateral tomentose stripes with presutural stripe midway; pleura mostly orange with golden tomentum; chaetotaxy: ac 2:1, dc 2:3, ia 1, ph 1, ppn 3x 3, kat 1:1, rarely 2:1, meral setae typical, 1 pair of converging ap, sa and lat absent, 1 stout bas, 1 weak pb, 1 disc; subscutellum moderately developed; spiracles orange, medium-sized; legs: femora orange, tibiae and tarsi brown. Wing with distal 2/3 of costa faintly infuscated; subcostal sclerite with long tan setae; basicosta and tegula orange; section IV 0.44 of section III; disc of upper calypter pale with brown rim and short tan setae; lower calypter with yellowish disc and dark brown rim with long tan setae.
Abdomen. T1+2–3 mostly dark orange, rear of T3 bluish; T4–5 shiny blue with faint white tomentum; rear margins of T4 and T5 with stout marginal setae dorsolaterally, no setae mid-dorsally; disc of T5 bare. Terminalia in lateral view with surstylus as in Fig. 89 View FIGURES 87–92 ; in posterior view, cerci very robust, pear-shaped, narrowed above, broadest midway and tapering distally to broad tips ( Fig. 90 View FIGURES 87–92 ); phallus in lateral view with medium-long, slender epiphallus with small backward curve ( Fig. 179 View FIGURES 173–182 ); in dorsal view, hypophallic lobes broad, pear-shaped, with coarse serrations along edge ( Fig. 180 View FIGURES 173–182 ). T6, STS7+8, pre- and postgonite, ejaculatory sclerite and ST6 as in Fig. 232 View FIGURES 229–235 ; ST2–5 as in Fig. 275 View FIGURES 266–279 .
Female. Similar to male except frons 0.238 (0.28–0.29/3) of head width at narrowest. T6 of WV shape with suture midway; T7 divided midway; T8 as separate sclerites ( Fig. 319 View FIGURES 318–323 ); ST6–8 and hypoproct as in Fig. 363 View FIGURES 350–369 ; spermathecae filiform ( Fig. 404 View FIGURES 401–410 ); ST1–5 as in Fig. 448 View FIGURES 439–453 .
Type material. HOLOTYPE ♂* ( Peru , Madre de Dios; CNC; Fig. 480 View FIGURES 479–483 ), labeled: Avispas [= Avispa], Madre / de Dios, PERU / 20 - 30.IX.1962 / L. Pena. 400m. ; HOLOTYPE / Mesembrinella / serrata / T.L. Whitworth.
ALLOTYPE ♀: Peru, Madre de Dios. Avispas [= Avispa], 20–30.ix. 1962, 400 m, L. Pena ( CNC).
PARATYPES: Peru, Madre de Dios. 1 ♂, 1 ♀ *, Avispas [= Avispa], 20–30.ix. 1962, 400 m, L. Pena ( CNC) ; 1 ♀, same data except 1–15.x.1962 ( CNC) .
Distribution. Peru.
Remarks. No specimens were barcoded.
Etymology. The species name serrata is derived from the Latin serra (= saw), and refers to the distinctive serrations along the edge of the hypophallic lobes.
FIGURES 87–92. Left lateral and posterior views of epandrium, cerci and surstyli of Mesembrinella spp. 87–88. M. semihyalina Mello. 89–90. M. serrata sp. nov. 91–92. M. socors (Walker).
FIGURES 173–182. Left lateral and dorsal views of phallus of Mesembrinella spp. 173–174. M. quadrilineata (Fabricius). 175–176. M. randa (Walker). 177–178. M. semihyalina Mello. 179–180. M. serrata sp. nov. 181–182. M. socors (Walker).
FIGURES 229–235. Male terminalia of Mesembrinella spp. (a = T6, STS7+8; b = pre- and postgonite; c = ejaculatory sclerite; d = ST6; e = hypandrium). 229. M. quadrilineata (Fabricius). 230. M. randa (Walker). 231. M. semihyalina Mello. 232. M. serrata sp. nov. 233. M. socors (Walker). 234. M. townsendi Guimar„es. 235. M. umbrosa Aldrich.
FIGURES 266–279. Male sternites of Mesembrinella spp. 266. M. currani Guimar„es. 267. M. cyaneicincta (Surcouf). 268. M. flavicrura Aldrich. 269. M. longicercus sp. nov. 270. M. peregrina Aldrich. 271. M. pictipennis Aldrich (ST5 only). 272. M. quadrilineata (Fabricius). 273. M. randa (Walker). 274. M. semihyalina Mello. 275. M. serrata sp. nov. 276. M. socors (Walker). 277. M. townsendi Guimar„es. 278. M. umbrosa Aldrich. 279. M. velasquezae sp. nov.
FIGURES 318–323. Female terminalia (T6–T8, epiproct, cerci) of Mesembrinella spp., dorsal view. 318. M. semihyalina Mello. 319. M. serrata sp. nov. 320. M. socors (Walker). 321. M. townsendi Guimar„es. 322. M. umbrosa Aldrich. 323. M. velasquezae sp. nov.
FIGURES 350–369. ST6–8 and hypoproct of Mesembrinellidae. 350. M. bicolor (Fabricius). 351. M. brunnipes Surcouf. 352. M. bullata sp. nov. 353. M. chantryi sp. nov. 354. M. currani Guimar„es. 355. M. cyaneicincta (Surcouf). 356. M. flavicrura Aldrich. 357. M. longicercus sp. nov. 358. M. peregrina Aldrich. 359. M. pictipennis Aldrich. 360. M. quadrilineata (Fabricius). 361. M. randa (Walker). 362. M. semihyalina Mello. 363. M. serrata sp. nov. 364. M. socors (Walker). 365. M. townsendi Guimar„es. 366. M. umbrosa Aldrich. 367. M. velasquezae sp. nov. 368. M. anomala (Guimar„es). 369. Souzalopesiella facialis (Aldrich).
FIGURES 401–410. Spermathecae of Mesembrinellidae. 401. Mesembrinella quadrilineata (Fabricius). 402. M. randa (Walker). 403. M. semihyalina Mello. 404. M. serrata sp. nov. 405. M. socors (Walker). 406. M. townsendi Guimar„es. 407. M. umbrosa Aldrich. 408. M. velasquezae sp. nov. 409. M. anomala (Guimar„es). 410. Souzalopesiella facialis (Aldrich).
FIGURES 439–453. Female sternites of Mesembrinella spp. 439. M. currani Guimar„es. 440. M. cyaneicincta (Surcouf). 441. M. flavicrura Aldrich. 442. M. longicercus sp. nov. 443. M. peregrina Aldrich. 444. M. pictipennis Aldrich. 445. M. quadrilineata (Fabricius). 446. M. randa (Walker). 447. M. semihyalina Mello. 448. M. serrata sp. nov. 449. M. socors (Walker). 450. M. townsendi Guimar„es. 451. M. umbrosa Aldrich. 452. M. velasquezae sp. nov. 453. M. anomala (Guimar„es).
CNC |
Canadian National Collection of Insects, Arachnids, and Nematodes |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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SubFamily |
Mesembrinellinae |
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