408 PROCEEDINGS OF THE NATIONAL MUSEUM vol. ids 



Liriomyza pacifica (Melander) 



Agromyza pacifica Melander, Journ. New York Ent. Soc, vol. 21, p. 264, 1913. 

 Agromyza longispinosa Malloch, Ann. Ent. Soc. Amer., vol. 6, p. 276, 1913. 



This species is one of two having the mesonotum dull and pollinose 

 and the third antennal segment black. The other, Liriomyza fumi- 

 costa, varies in having the costal area tinged light brown and a com- 

 pletely yellow sciitellum. The head of L. pacifica is mostly yellow 

 and the black of the occiput does not touch the eye margin (fig. 115). 

 There is only one lower-orbital seta. Larval host plants are un- 

 known. The species has been found in Washington, Illinois, Indiana, 

 Michigan, Alaska, and from British Columbia and Ontario. 



Liriomyza phaseolunata (Frost) 



Agromyza phaseolunata Frost, Journ. New York Ent. Soc, vol. 51, p. 256, 1943. 



This species has two rows of acrostichals and is therefore closely 

 related to Liriomyza trijolii and L. allia. L. phaseolunata is more 

 yellow than L. trijolii and does not have the black of the occiput 

 reaching the eye margin, and the inner postalar seta is on yellow. 

 In contrast to L. allia. the mesonotum is subshining and not poUi- 

 nose. The larvae mine the leaves of Phaseolus limensis Macfad. in 

 New Jersey. 



Liriomyza pictella (Thomson) 



Agromyza pictella Thomson, Diptera, in Kongliga Svenska Fregatten Eugenies 



. . . , vol. 6, pt. 2, p. 609, 1868. 

 Liriomyza pictella (Thomson), Frick, Pan-Pacific Ent., vol. 33, p. 66, 1957. 



Liriomyza pictella is similar to L. propepusilla but differs in hav- 

 ing the fii-st dorsocentral developed and about one-third as long as 

 the fourth dorsocentral. The anepisternum is about one-half yellow 

 while that of Z. propepusilla is about three-fourths dark (fig. 116). 

 The larvae form serpentine mines in the leaves of about 16 species 

 of native and cultivated plants throughout California. Frick (1957b) 

 has tabulated all of the host plant and locality records. Since that 

 paper was pubUshed I have seen a single specimen from Arizona, 

 swept from alfalfa. 



Liriomyza propepusilla (Frost) 



Agromyza subpusilla Frost (not Malloch, 1914), Journ. New York Ent. Soc, vol. 

 51, p. 255, 1943. 



Phytomyza subpusilla Frost, Ent. News, vol. 65, p. 73, 1954. 



Liriomyza propepusilla Frost, Ent. News, vol. 65, p. 73, 1954. — Frick, Pan- 

 Pacific Ent., vol. 33, p. 62, 1957. 



The name of this species erroneously has been associated with the 

 common California leaf miner, Liriomyza pictella. L. propepusilla is 

 darker over-all and has the episternum about three-fom-ths dark (fig. 



