Liriomyza specifica Spencer

Lonsdale, Owen, 2011, The Liriomyza (Agromyzidae: Schizophora: Diptera) of California 2850, Zootaxa 2850 (1), pp. 1-123 : 99-101

Liriomyza specifica Spencer

Figs 218–220

Liriomyza specifica Spencer 1981: 275 . Spencer & Steyskal 1986: 127.

Wing length approximately 1.7mm (♂). Female unknown. Length of ultimate section of vein CuA 1 divided by penultimate section, and eye height divided by gena height not discernable. Scutum shining.

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

Colouration: Calypter margin and hairs brown. Head yellow with back of head, ocellar triangle and clypeus dark brown; distal half of first flagellomere orange; posterolateral corner of frons dark brown to base of outer vertical bristle and paler to base of inner vertical. Scutum with complete lateral yellow stripe. Anepisternum with broad, oblique anteroventral stripe and dark posteroventral margin; anepimeron with brown mottling on anterior half; meron mostly brown; katepisternum brown ventral to base of bristle (not including bristle base). Legs yellow with base of fore coxa, basal half of mid coxa and all of hind coxa brown; fore femur possibly with faint dorsobasal spot, hind femur lightly pigmented on file and possibly with faint dorsal mottling; tibiae brown (paler on anterior legs) and tarsi brown (becoming paler to base). Abdomen brown with sides of tergites yellow.

Genitalia: Figs 218–220 . Surstylus with two subapical spines. Dorsal surface of phallophorus narrowed and subrectangular distally. Paraphallus flat, thin and narrowed apically. Hypophallus narrow with few short apical hairs. Mesophallus slightly longer than wide, tapered at ends and with ventral sulcus. Distiphallus cup-shaped with wide ventral suture and thick-walled base. Ejacularoty apodeme with short dark stalk and short, but well-sclerotized blade.

Host. Unknown, possibly Sambucus mexicana (Caprifoliaceae) .

Range. USA. California [Riverside, Ventura].

Type material. Holotype, USA. California: Riverside Co., Elsinore , 16.iv.1977, on Sambucus, K.A. Spencer (1♂, USNM).

Comments. The two spines on the surstylus will most easily distinguish this species from the common Liriomyza sativae , and the additional ori on both sides, the narrowed paraphalli and characteristic distiphallus will separate it from L. sabaziae and other similar taxa.

Figures

FIGURES 218–224. Figs 218–220: Liriomyza specifica, male holotype genitalia; 218: phallus, ventral; 219: ejaculatory apodeme; 220: external components, ventral. Figs 221–224: L. stachyos Spencer, male genitalia; 221: ejaculatory apodeme; 222: phallus, left lateral; 223: phallus, ventral; 224: external components, ventral.