AGROMYZID LEAF MINERS — FRICK 407 



the dark brown of L. melampyga. Spencer in England has recently 

 reared this species for the first time from Asplenium rutamuraria L. 

 I have identified one specimen from Alaska that was compared with 

 two from Europe. 



Liriomyza marginalis (Malloch) 



Agromyza marginalis Malloch, Ann. Ent. Soc. Amer., vol. 6, p. 283, 1913. 



This species is closely related to Liriomyza sorosis and L. barro- 

 coloradensis but has only three dorsocentrals, one presutural and two 

 postsutural (fig. 111). The mesonotum has the central area light 

 reddish and the marginal stripes dark brown, whereas in L. barro- 

 coloradensis the colors are reversed and in L. sorosis the dark area is 

 uniformly dark brown. The head has the eye widest below the midline 

 (fig. 112), whUe it is above the midline in the other two species (fig. 125). 

 The larvae mine in Paspalum dilatatum Poir. I have seen specimens 

 from Illinois, Texas, and South Carolina. 



Liriomyza melampyga (Loew) 



Agromyza melampyga Loew, Berliner Ent. Zeitschr., vol. 13, p. 48, 1869 (Centuria 

 viii. No. 88) — Melander (part), Journ. New York Ent. Soc, vol. 21, p. 258, 

 1913 (19, Massachusetts). 



Agromyza fiaviventris Johnson (not Strobl, 1898), Canadian Ent., vol. 34, p. 242, 

 1902. 



This species has the scutellum entirely yellow and the mesonotum 

 bearing four developed dorsocentral setae (fig. 113). The mesonotal 

 color pattern is like that of L. barrocoloradensis but is all dark brown. 

 This species is close to L. lutea but the mesonotal dark area of L. lutea 

 is light reddish brown and there are only two rows of acrostichals. 

 The head used for the illustration was not that of the teneral type but 

 of a female from Glen Echo, Md. (fig. 114), The larval host plants 

 remain unknown. I have seen specimens from Michigan, District of 

 Columbia, Maryland, New Jersey, New York, and Massachusetts. 



Liriomyza munda Frick 



Liriomyza munda Frick, Pan-Pacific Ent., vol. 33, p. 61, 1957. 



This species may be separated from Liriomyza eupatorii by having 

 crossvein m-m at its own length from r-m and from L. verbenicola by 

 a long inner postalar seta (about one-half the length of the outer) 

 and with about twice as many setulae (seven to nine) in the intraalar 

 row posterior to the transverse suture. The larvae make serpentine 

 mines in the leaves of Lycopersicon esculantum Mill., rarely Solanum 

 tuberosum L., and the native Datura meteloides DC. in California. 



