Liriomyza trifoliearum Spencer, 1973

Lonsdale, Owen, 2021, Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states, ZooKeys 1051, pp. 1-481 : 1

publication ID

https://dx.doi.org/10.3897/zookeys.1051.64603

publication LSID

lsid:zoobank.org:pub:639E252D-4392-4ABB-910B-CEA5D8AD2487

persistent identifier

https://treatment.plazi.org/id/95C57FF1-02AA-1CA7-C30C-AE752D7EFDD6

treatment provided by

ZooKeys by Pensoft

scientific name

Liriomyza trifoliearum Spencer
status

 

Liriomyza trifoliearum Spencer

Figs 632-635 View Figures 626–635

Liriomyza pictella . Misidentification. Frick 1959: 408.

Liriomyza trifoliearum Spencer in Spencer and Stegmaier 1973: 107. Spencer and Steyskal 1986: 296; Scheffer et al. 2007: 772; Lonsdale 2011: 104, 2017: 96; Scheffer and Lonsdale 2018: 87; Eiseman and Lonsdale 2018: 56.

Description.

Wing length 1.8-2.3 mm (♂), 1.8-2.2 mm (♀). Length of ultimate section of vein M4 divided by penultimate section: 1.5-4.0. Eye height divided by gena height: 2.8-3.2. Scutum subshiny.

Chaetotaxy: Two ori (sometimes three on one side); two ors. Acrostichal setulae in four or five irregular rows.

Colouration: Head mostly yellow; ocellar triangle, back of head, clypeus and posterolateral margin of frons to base of inner vertical seta dark brown; fronto-orbital plate brown to base of posterior or anterior ors (fading anteriorly), or with light mottling at base of setae; face light brown to yellow; posteroventral margin of gena with narrow brownish stripe; first flagellomere sometimes with distal margin infuscated. Scutum with complete lateral yellow stripe that is sometimes brown posteriorly. Scutellum yellow with lateral corner brown. Metanotum brown, usually with katatergite partially yellow dorsally. Pleuron brown with dorsal 1/4 or less of anepisternum, mottling on anepimeron, dorsal margin of meron and dorsal or dorsomedial margin of katepisternum yellow; katepisternal seta usually enclosed by brown but sometimes on yellow border. Calypter margin and hairs dark. Coxae (sometimes excluding apex to distal 2/3 of fore coxa), tibiae and tarsi brown; base of femora brown (sometimes only dorsally in eastern material or with mid femur entirely yellow), remainder of segment variably patterned, but usually paler on fore or mid femora, and infrequently entirely brown with only apex and anteroventral surface yellow. Abdomen brown, sometimes with posterior margin of tergites 2-5 yellow.

Genitalia: (Figs 632-635 View Figures 626–635 ) Epandrium with one posterodistal spine. Surstylus slightly narrowing distally and with two subapical spines with outer spine slightly smaller. Apical membrane of basiphallus produced into one pair of pointed paraphalli. Hypophallus absent or present as small offset sclerotised plate. Mesophallus slightly longer than wide, most heavily sclerotised laterally and dorsally; mesophallus and distiphallus with complete ventral suture. Distiphallus short, entirely divided medially with halves narrow, weakly sclerotised apically and with several inner-marginal points. Ejaculatory apodeme narrow and poorly developed with venter of sperm pump broadly sclerotised.

Hosts.

Cleomaceae - Cleome . Fabaceae - Coronilla , Lupinus , Medicago , Phaseolus , Pisum , Securigera , Trifolium . Lamiaceae - Trichostema . Malvaceae - Eremalche . Solanaceae - Solanum . ( Lonsdale 2011, 2017; Eiseman and Lonsdale 2018)

Distribution.

Canada: AB, BC, NB, NS, ON, PE, QC, SK. USA: AZ, CA, DE, FL, MA, MD, NM, NY, OH, OR, PA, UT, VA, WA, WI, WV.

Type material.

Holotype: USA. FL: Gainesville, 24.iv.1964, ex. Trifolium repens , D.H. Habeck (1♂, USNM).

Additional material examined.

USA. CA: Lake Co., McLaughlin Natural Reserve , 18.iv.2016, E. LoPresti, Trichostema laxum , em. 1-4.v.2016, #CSE2437, CNC654495, CNC654496 (2♂, CNC), FL: Gainesville, R.N. Wilson (1♂, USNM), MD: Montgomery Co. , Colesville, 4.vi.1977, W.W. Wirth (1♀, USNM), Colesville, 4.ix.1977, Malaise trap, W.W. Wirth (1♀, USNM), OR: Mt. Hood , Hoods Rapids, 29.vii.1921, A.L. Melander (1♂, USNM), Lake Co. , 9mi SE Fort Rock, 3.vii.1971, G. Steyskal (2♂, USNM), UT: Timpanogos Mt. , 25.vi.1940, A.L. Melander (1♂, USNM), Salt Lake Laboratory , 22.viii.1913, L.P. Rockwood (1♂ 2♀, USNM), Salt Lake , C.N. Ainslie, 15.vii.1912, reared from Agromyza mines (3♂ 3♀, USNM), Salt Lake , C.N. Ainslie, reared from alfalfa leaf mines, "May 11" (1♂, USNM), Salt Lake , C.N. Ainslie, 2.ix.1912, reared from alfalfa mine (1♀, USNM), Salt Lake, T.H. Parks (1♂ 2♀, USNM), WA: Eusum, 28.vi.1917, A.L. Melander (1♂, USNM). Also see Lonsdale (2011, 2017) .

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Phytomyzinae

Genus

Liriomyza

Loc

Liriomyza trifoliearum Spencer

Lonsdale, Owen 2021
2021
Loc

Liriomyza trifoliearum

Spencer 1973
1973