Calycomyza malvae (Burgess)

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

Calycomyza malvae (Burgess)

Figs 97 , 475-477

Oscinis malvae Burgess, 1880: 202. Frick 1952a: 395 [as synonym of jucunda Wulp].

Agromyza jucunda . Misidentification, in part. Coquillett 1898: 77.

Agromyza cassiae . Misidentification, in part. Frost 1936: 306.

Phytobia (Calycomyza) malvae . Frick 1956: 298 [lectotype designation], 1959: 391.

Calycomyza althaeae Spencer, 1969: 146. Spencer and Stegmaier 1973 [synonymy].

Calycomyza malvae . Spencer and Stegmaier 1973: 81; Spencer and Steyskal 1986b: 149; Martinez and Etienne 2002: 31; Scheffer and Lonsdale 2018: 86; Eiseman and Lonsdale 2018: 32; Monteiro et al. 2019: 167.

Description

(Fig. 97 ). Wing length 1.8-2.0 mm (♂), 1.9-2.2 mm (♀). Length of ultimate section of vein M4 divided by penultimate section: 2.3-2.8. Eye height divided by gena height: 4.6-5.0. First flagellomere circular. Notum subshiny.

Chaetotaxy: Two ori; two ors. Ocellar seta slightly thinner and shorter than well-developed postocellar. Two well-developed dorsocentral setae. Six rows of acrostichal setulae. Two or three posteromedial setae on mid tibia.

Colouration: Setae dark brown. Head yellow with back of head, clypeus, palpus, ocellar triangle (restricted to, or barely larger than tubercle) and antenna dark brown; frons brown in posterolateral corner to base of posterior ors along fronto-orbital plate, and lateral margin of frons usually brownish to level of anterior ors; if fronto-orbital plate with stripe reduced to faded brownish stripe reaching posterior ors (uncommon), apex of fore femur narrowly yellow; face usually yellow with small brownish spot below base of antenna faintly, but sometimes light brown to brown on dorsal 1/2. Thorax dark brown with postpronotum (excluding dark anteromedial spot confluent with margin), notopleuron (excluding dark elongate sublateral spot) and small anterolateral spot behind suture yellow. Halter white. Calypter margin and hairs brown. Legs and abdomen dark brown.

Genitalia: (Figs 97 , 475-477 ) Epandrium and surstylus with dense patch of tubercle-like setae on inner-distal margin. Hypandrium thin, with one seta on broad inner lobe. Postgonite bare, simple. Basiphallus sclerotised along distal and left lateral margins. Paraphalli leaf-like, not meeting, lightly and gradually sclerotised medially; left lobe reduced. Hypophallus broad apically, sclerotised along base and right lateral margin. Mesophallus nearly as wide as long, slightly expanded distolaterally. Distiphallus entirely divided with stalk absent, base bulbous and subspherical, outer cover narrow and pointed laterally, and inner process well-developed. Ejaculatory apodeme as long as phallus, stem stout and blending into slightly flared blade with clear distal margin.

Hosts.

Malvaceae - Abutilon , Alcea , Althaea , Gaya , Hibiscus , Malva , Malvastrum , Sida , Sphaeralcea , Urena . Fabaceae - Centrosema , Glycine , Phaseolus , Senna . ( Spencer and Steyskal 1986b; Benavent-Corai et al. 2005; Servín et al. 2013; Eiseman and Lonsdale 2018).

Distribution.

Canada: ON. USA: AZ, CA, DC, FL, IN, MA, MD, MS, NC, NM, NY, OK, PA, TX, VA*, WI. Argentina. Bahamas. Brazil. Chile. Dominican Republic*. Jamaica. Mexico. Panama. Venezuela.

Type material.

Lectotype [malvae]: USA. DC: Washington, 14.xi.1879, T. Pergande (1♀, USNM [specimen on edge away from puparium]; type No. 19127).

Paralectotype examined

[malvae]: USA. DC: [same pin as lectotype] (1♀, USNM).

Holotype [ Calycomyza althaeae ]: Canada. ON: Toronto, em. 24.vii.1967, mine Althaea rosea 14.vii.1967 (1♂, CNC).

Paratype examined

[ Calycomyza althaeae ]: Canada. ON: Toronto, em. 26.vii.1967, mine Althaea rosea 14.vii.1967 (1♀, CNC).

Additional material examined.

Bahamas. New Providence Isl.: Nassau, 3.i.1953, E.B. Hayden and L. Giovannoli, A.M.N.H. Bahama Isls. Exped., CNC391453 (1♂, CNC). Canada. ON: Harrow, 29.ix.1968, H.R. Boyce, leaf mine Abutilon theophrasti , CNC391459, CNC391460 (1♂, 1♀, CNC). Dominican Republic. Espaillat Prov., 24.viii.1967, L.H. Rolston, CNC391451 (1♂, CNC). USA. AZ: Tempe, V.L. Wilder, Webster No. 7286 (1♀ 3♂, USNM), FL: Gainesville, 25.iv.1952, O. Peck, CNC391452 (1♂, CNC), Homestead, 28.iii.1952, G.S. Walley, CNC391455 (1♀, CNC), J.R. Vockeroth, CNC391454 (1♂, CNC), 4.iv.1952, G.S. Walley, CNC391457 (1♀, CNC), J.R. Vockeroth, CNC391456, CNC391458 (2♀, CNC), IN: Lafayette, leaf-miner in Abutilion theophrasti , J.M. Aldrich (1♂ 1♀ [with puparia], USNM), Lafayette, bred from hollyhock 16.xi.1913, J.M. Aldrich (2♂ 2♀, USNM), Lafayette, hollyhock leaf miner 2-5.viii, emerged? (1♂ [with puparium], USNM), “x-17”, "leaf miner in Malva rot..folia", J.M. Aldrich (1♂ 2♀, USNM), Lafayette, cage No. C1367a, issued by x.18.15, reared from Sida spinosa , Satterthwalt (1♀, USNM), Lafayette, 19.ix.1915, cage No. C1367b, issued by Jan 10, reared from Sida spinosa , Satterthwalt (1♀, USNM), Lafayette, from Malva rotundifolia (1♂, USNM), Lafayette, from Malva rotundifolia , 15.xi.1913 (1♂, USNM), MA: Hampshire Co., Pelham, Quarry St., 2.vii.2013, ex. Malva cf. rotundifolia , em. 13-15.vii.2013, C.S. Eiseman, #CSE686, CNC384778 (1♂, CNC), MS: Shaw, 24.x.1979, H. Walker, ex. leaf mines on Abutilon theophrasti (1♂ 2♀, USNM), NC: Scotland Co., Laurinburg, St. Andrews University, 17.viii.2015, T.S. Feldman, Sida rhombifolia , em. 28.viii-ix.2015, #CSE2119, CNC653958-653965 (5♂ 3♀, CNC), 29.vi.2016, T.S. Feldman, em. 14.vii.2016, #CSE2754, CNC659975 (1♀, CNC), OK: Payne Co., Perkins, 30.vi.2015, M.W. Palmer, Senna marilandica , em. by 12.vii.2015, #CSE1821, CNC564700-564702 (2♂ 1♀, CNC), Payne Co., Mehan, 7.vii.2016, M.W. Palmer, Senna marilandica , em. by 31.vii.2016, #CSE3047, CNC653983, CNC653984 (1♂ 1♀, CNC), VA: Fairfax Co., Great Falls Park, quarry, 38°59.1'N, 77°14.8'W, Malaise trap, 30.x-28.xi.2007, D.R. Smith (1♂, USNM).

Comments.

Calycomyza malvae can be recognised by sometimes having three thick setae on the mid tibia, its characteristic basally subspherical distiphallus, and ejaculatory apodeme.

Figures

Figures 92 - 98. Calycomyza sp. (T. Bentley - Illinois, Reed-Turner Woodland Nature Preserve) 93 Calycomyza sp. (S. A. Marshall - Cuba, Santiago) 94, 95 Calycomyza humeralis (Roser), head 94 anterior 95 lateral 96 Calycomyza cynoglossi (Frick), head, lateral 97 Calycomyza malvae (Burgess), male, lateral 98 Calycomyza flavinotum (Frick) (C. S. Eiseman).

Figures 475 - 477. Calycomyza malvae (Burgess), male genitalia 475 hypandrium and postgonite, ventral 476 phallus, ventral 477 hypandrial complex, left lateral.