Aphalara simila Figures 6K, L, 7G, H, L

Aphalara simila Caldwell, 1937: 564; Caldwell (1941): 420; Caldwell (1944): 57; Hodkinson (1988): 1182; Burckhardt and Lauterer (1997): 305.

Material examined.

Mexico • 1 ♀; MEX, Mexico City to Toluca road km 20; 19.2952, -99.4201; 2850 m a.s.l.; 24 Nov. 1938; J.S. Caldwell leg.; USNM, dry mounted • 1 ♀; MIC, Uruapan; 19.4128, -102.0475; 1620 m a.s.l.; 1 Oct. 1941; D.M. DeLong, C.C. Plummer & G. Good leg.; from roadside weeds; USNM, dry mounted • 1 ♂, 5 ♀; San Luis Potosí, Tamazunchale; 21.2578, -98.7869; 140 m a.s.l.; 29 Aug. 1939; D.M. & F.M. DeLong leg.; USNM, dry mounted.

Diagnosis.

Adults. General body colour orange to light brown. Forewing with light or brown clavus. Head with small anteorbital tubercles; anterior tubercles small, rounded; outer anterior margin strongly concave. Clypeus long, tubular, visible in dorsal view. Forewing 2.4 × as long as wide; surface spinules moderately thick, forming irregular squares or rhombi; in males often leaving narrow spinule-free stripes along veins, in females usually covering the entire wing membrane up to vein). Paramere, in lateral view, lamellar, straight, weakly widening to apex; dorsal margin sclerotised, straight, postero-apical edge angular; apex of thumb-like process level with antero-apical edge, long, broad (Fig. 6K). Distal portion of aedeagus with straight shaft and relatively evenly widening apical inflation (Fig. 6L). Female proctiger, in lateral view, not incised distal to circumanal ring (Fig. 7G), which is not expanded caudally (Fig. 7L). Dorsal margin of valvula dorsalis almost straight (Fig. 7H).

Fifth instar immature. Unknown.

Distribution.

Mexico (Distrito Federal, Michoacán, Morelos, San Luis Potosí) (Caldwell 1941, 1944), USA (California, Colorado, Idaho, Oregon, Utah, Washington, Wyoming) (Caldwell 1937).

Host plants, biology and habitats.

Rumex sp. ( Polygonaceae) (Burckhardt and Lauterer 1997).