406 PROCEEDINGS OF THE NATIONAL MUSEUM vol. loa 



This species has the third antennal segment darkened, distally and 

 the femora marked with yellow streaks. Crossvein m-m is sometimes 

 lacking. Liriomyza langei may be separated from L. chlamydata 

 by having the mesepimeron at least one-half yellow, humeral seta 

 mostly on yellow, and the setulae of the third antennal segment about 

 one-half as long as the basal diameter of the arista. Of 1,000 specimens 

 examined, 81.7 percent have m-m present in both wings, 5.7 percent 

 with one m-m complete and one vestigial, 1.0 percent with one cross- 

 vein complete and one absent, 6.8 percent with m-m vestigial in both 

 wings, 2.9 percent with one vestigial and one absent, and 1.9 percent 

 with crossvein m-m absent in both wings. Two similar species, L. 

 quadrisetosa and L. baptisiae, have the third antennal segment black 

 and the femora black except for being narrowly yellow distally. 

 L. langei is very similar to L. dianthi. However, L. langei is over-all 

 more yellow and has the pteropleuron and mesepimeron each about 

 one-half yellow and the femora streaked with yellow. 



The larvae of L. langei have been found mining the leaves of a wide 

 range of plants as follows: Allium cepa L. (Liliaceae), Beta vulgaris L. 

 and Spinacia oleracea L. (Chenopodiaceae), Brassica oleracea var. 

 botrytis L. (Crucif erae) , Pisura sativum L. (Leguminosae), Apium 

 graveolens var. dulce Pers. (Umbellif erae) , and Petunia sp. (Solanaceae) , 

 Aster spp., and Lactuca sativa L., cultivated varieties (Compositae). 

 Thus far no uncultivated plants have been found as larval hosts. 

 L. langei has been identified from Washington, Oregon, and California. 



Liriomyza lima (Melander) 



Agromyza lima Melander, Journ. New York Ent. Soc, vol. 21, p. 265, 1913. 

 Agromyza holti Malloch, Canadian Ent., vol. 56, p. 191, 1924. 



This species is distinctive in the "pusilla complex" in having the 

 margin and fringe of the calypter white. The head has a very wide 

 gena and the eye subquadrate (fig. 110). Melander's series is from 

 Idaho while Malloch's specimen is from South Dakota. 



Liriomyza lutea (Meigen) 



Agromyza lutea Meigen, Systematische Beschreibung der bekannten europaischen 



zweifliigeligen Insekten, vol. 6, p. 177, 1830. 

 Liriomyza lutea (Meigen), Hendel, in Lindner, Die Fliegen der palaearktischen 



Region, fam. 59, p. 230, 1931 (figures of head of wing). — Spencer, Ent. Gaz., 



vol. 5, p. 185, 1954. 



Liriomyza lutea is a very yellow species that has the scutellum 

 entirely yellow. It is close to L. melampyga but differs in having only 

 a few setulae on the mesonotum and the acrostichals in two rows. The 

 dark color of the mesonotum is light reddish brown as contrasted with 



