Liriomyza frommeri Spencer

Lonsdale, Owen, 2011, The Liriomyza (Agromyzidae: Schizophora: Diptera) of California 2850, Zootaxa 2850 (1), pp. 1-123 : 51-52

Liriomyza frommeri Spencer

Figs 108–111

Liriomyza frommeri Spencer 1981: 235 . Spencer & Steyskal 1986: 127.

Wing length 1.2mm (♂), “up to 1.5mm ” (♀) ( Spencer, 1981). Length of ultimate section of vein CuA 1 divided by penultimate section: 5.0. Eye height divided by gena height: 6.0. Scutum glossy. Frons relatively narrow.

Chaetotaxy: Two ori, two ors. Acrostichal setulae in four rows.

Colouration: Calypter margin and hairs grey. Head light yellow with ocellar tubercle and posterolateral region of frons to base of inner vertical bristle dark brown; clypeus brownish; first flagellomere yellow with basal margin slightly paler. Scutum dark with yellow lateral stripe, with stripe brownish behind wing base; katatergite yellow and anatergite brown (darker below scutellum). Pleuron yellow with brown mottling on anepimeron, small posterior spot and clavate anteroventral spot on anepisternum, and ventral ¾ of meron and katepisternum brown, with area around katepisternal bristle yellow. Legs yellow with tibiae and tarsi brown, with tarsi paler to base. Colour of abdomen unknown.

Genitalia: Figs 108–111 . Surstylus with single subapical spine. Basiphallus without process on left distal margin. Swollen portion of ejaculatory duct only slightly constricted apically. Paraphallus thin and pale. Hypophallus dark basally with medial swelling and apex without distinct hairs. Mesophallus contiguous with distiphallus dorsally, and approximately as long as wide with sides narrow and pointed. Distiphallus not much longer than mesophallus, but broader and cup-shaped. Ejaculatory apodeme with evenly sclerotized pileus ejaculatorius and blade strongly atrophied with distal margin clear.

Hosts. Unknown; adults collected on Chilopsis linearis (Bignoniaceae) and Melilotus indica (Fabaceae) .

Range. USA. California [Riverside].

Type material. Holotype, USA. California: Riverside Co., P.L. Boyd Desert Research Center, 3.5mi S of Palm Desert, 24–26.vi.1969, Malaise Marker #57, S. Frommer & B.Worley, Type No. 16033 (1♂, CASC).

Comments. Liriomyza frommeri is a small (wing length 1.2mm) pale species with a yellow clypeus and antenna, as well as a very small blade on the ejaculatory apodeme and a reduced phallus with a narrow, parallelsided mesophallus that is distinctly upturned.

Figures

FIGURES 104–111. Figs 104–107: Liriomyza fricki Spencer, male genitalia; 104: ejaculatory apodeme; 105: external components, ventral; 106: phallus, ventral; 107: phallus, left lateral. Figs 108–111: L. frommeri Spencer, male holotype genitalia; 108: phallus, left lateral, from original figure in Spencer (1981); 109: external components, ventral; 110: phallus, left lateral; 111: ejaculatory apodeme.