Calycomyza flavinotum (Frick)

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 flavinotum (Frick)

Figs 98 , 456-459

Agromyza allecta . Misidentification, in part. Frost 1924: 38.

Phytobia (Calycomyza) flavinotum Frick, 1956: 297.

Calycomyza flavinotum . Spencer, 1969: 147; Spencer and Steyskal 1986b: 146; Scheffer et al. 2007: 771; Eiseman and Lonsdale 2018: 31.

Description

(Fig. 98 ). Wing length 2.8-3.5 mm (♂), 3.0-3.7 mm (♀). Length of ultimate section of vein M4 divided by penultimate section: 1.9-2.6. Eye height divided by gena height: 4.7-6.0. First flagellomere circular, slightly longer than wide. Fronto-orbital plate slightly visible anteriorly (viewed laterally). Notum subshiny.

Chaetotaxy: Two ors, three or four ori. Postocellar and ocellar setae well-developed. Three dorsocentral setae; anterior seta <1/2 length of second dorsocentral. Eight to ten rows of acrostichal setulae. Two posteromedial setae on mid tibia.

Colouration: Setae dark brown. Head yellow with back of head, clypeus, palpus and ocellar tubercle dark brown; antenna dark brown with scape and pedicel paler and/or with distal margin yellowish; frons brown to dark brown in posterolateral corner with spot usually reaching base of inner vertical seta Thorax dark brown with postpronotum (excluding dark anteromedial spot confluent with margin), notopleuron (excluding dark elongate sublateral spot), lateral postsutural margin and large posterolateral spot on scutum yellow; most sutures on pleuron yellow with posterodorsal corner of anepisternum and anepimeron around wing base more widely yellow. Halter white. Calypter margin and hairs brown. Legs and abdomen dark brown with fore knee and male cercus and perianal region yellow.

Genitalia: (Figs 456-459 ) Epandrium and surstylus with dense patch of tubercle-like setae on inner-distal margin. Hypandrium thin, inner lobe extending to surround outer surface of postgonite, with one seta. Postgonite small and simple. Basiphallus sclerotised laterally and anterodorsally, confluent with hypophallus. Paraphallus absent. Hypophallus long and narrow with sides sclerotised on basal 2/3. Distiphallus and mesophallus subequal in length; mesophallus dorsoventrally compressed, subovate in ventral view. Distiphallus with tubules short, with narrow, mostly clear basal stem, outer cover short and spinulose, and inner process coiled, long-haired and widely exposed.

Hosts.

Asteraceae - Arctium , Carduus , Eupatorium , Eutrochium ( Spencer and Steyskal 1986b; Spencer 1990; Eiseman and Lonsdale 2018). Spencer notes that this species probably occurs on Ageratina , referring to unspecified records in Spencer and Steyskal (1986b); this host record may be attributable to observed mines of C. eupatoriphaga Eiseman and Lonsdale. Eupatorium is probably the primary host for this species ( Spencer 1990), and in Ontario, it is regularly observed on Arctium , with many larvae mining much of the surface area of the leaves, which can be quite large.

Distribution.

Canada: ON. USA: CA*, MA, MD*, ME, MN, NY, PA, VA*, WI.

Type material.

Holotype: USA. NY: Elma, 20.viii.1911, M.C. vanDuzee (1♂, USNM).

Paratypes examined.

Canada. ON: Ottawa, 14.vii.1946, A. Brooks, No. 6367, CNC391397 (1♀, CNC), Ottawa, [adult] on Viburnum pubescens , 19.vii.1946, G.E. Shewell, No. 6367, CNC391401 (1♂, CNC).

Additional material examined.

Canada. ON: Bells Corners , 30.viii.1984, H.J. Teskey, ex Arctium , "REARED Assoc. Vial", CNC391398, CNC391399 (1♂ 1♀, CNC), Ottawa, Central Experimental Farm , 8.vii.2014, O. Lonsdale, Arctium sp., em. 28.vii.2014, CNC352948, CNC349315-349318 (10 ex, CNC), St. Lawrence Is. Nat. Park, McDonald Is., 23.viii.1976, A. Carter, Code 4497-A, CNC391403 (1♀, CNC), St. Lawrence Is. Nat. Park, Thwartway Is., 10.viii.1976, G. Calderwood, Code 4382-P, CNC391402 (1♀, CNC), Wallacetown, 18.ii.1980, "no host", det. lot 80-1283, 9, 795-2319-01, CNC391400 (1♂, CNC) . USA. CA: Mpls. Orium, Minnehaha , [illegible], 3.viii.1980, mine Eupatorium rugosum , 29.vi.1980 (1♂, USNM), IL: White Heath, 25.vi.1939, J.C. Dirke, herb No. 45 (1♂, USNM), MA: Berkshire Co., Savoy , Tannery Falls , 12.vii.2012, C.S. Eiseman, ex leaf mine Eupatorium perfoliatum , em. 31.vii.2012, #CSE15, CNC391394-391396 (1♂ 2♀, CNC), Franklin Co. , Northfield , 276 Old Wendell Rd. , 8.ix.2013, C.S. Eiseman, ex Arctium minus , em. 11.x.2013,em. 17.iv.2014, #CSE936, #CSE1083, CNC392639, CNC384749-384753 (3♂, 3♀, CNC), MD: Elkron , 84-31, DFB, em. viii.1984, "Hoor?" (1♂, USNM), VA: Great Falls, 9.vii.1936, A.L. Melander (1♂, USNM) .

Comments.

A pair of broad yellow posterolateral spots on the scutum is diagnostic of Calycomyza flavinotum , as is the large plate-like hypophallus and the pair of haired, coiled processes apically on the distiphallus.

In the original description, the depository of the holotype was incorrectly listed as CASC, not USNM.

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 452 - 459. Calycomyza barbarensis Spencer, male genitalia 452 ejaculatory apodeme 453 hypandrium and postgonite, ventral 454 hypandrial complex, left lateral 455 phallus, ventral 456 - 459 C. flavinotum (Frick), male genitalia 456 ejaculatory apodeme 457 hypandrium and postgonite, ventral 458 hypandrial complex, left lateral 459 phallus, ventral.