272 Journal New York Entomological Society. tVoi. xxi. 



than the oral hairs. Eyes large, leaving the cheeks about,one fourth the eye- 

 height. Third joint of antennas orbicular, not hairy, the arista about twice 

 the length of the third joint. Four small dorsocentrals, the acrostichals minute ; 

 one fine mesopleural and one sternopleural bristle, no setulas. Terminal seg- 

 ment of abdomen of female short. Calypteres with dusky margin and fringe. 

 Wings lightly infumated, the fourth vein ending at the wing tip or just be- 

 yond, the fourth section of the costal margin about twice as long as the third. 



Five specimens from the Cedar Mountains of Idaho, taken at Troy, 

 Bovill and Moscow ; and one from White Plains, New York, the last 

 mentioned specimen collected by J. R. de la Torre Bueno. 



This species is apparently close to morio Zetterstedt, but the wings 

 are not white. It differs from the related ohscurella Fallen and orbi- 

 talis n. sp. in having three fronto-orbitals, the dorsocentrals and espe- 

 cially the acrostichal and other setulse weak, and the pollinosity 

 greatly reduced. 



Phytomyza genalis new species. 



(^ 5- Length 2.5 mm. Robust, yellow, the ocellar triangle, occipital spot, 

 disk of mesonotum, the scutellum and metanotum, a fainter spot above the 

 posterior coxae, and in the female the bases of the abdominal segments, ciner- 

 eous black; ovipositor and apical half of preceding segment shining jet black. 

 Eyes small, rounded-oval, the front and cheeks broad, the latter comprised 

 largely of the obliquely descending genae : four fronto-orbitals ; vibrissa small. 

 Antennae yellow, elongate, the third joint one half longer than deep, nearly 

 bare, the black, bare arista two and one half times as long as the third joint. 

 Mouth-parts yellow. Four long dorsocentrals, two rows of sparse acrostichals, 

 one long mesopleural. Tarsi a little dusky. Halteres yellow. Calypteres with 

 a dense dusky fringe. Wings brownish hyaline, root of first vein yellow, the 

 fourth vein straight, ending just beyond the wing tip. 



Two specimens, Chicago, Illinois. 



The species resembles aiialis Zetterstedt, but has much smaller 

 eyes, longer antennae, dark scutellum, and in the female a fasciate 

 abdomen. 



NAPOMYZA Haliday. 



Anterior crossvein at two thirds the length of the small discal cell, the last 

 section of the fifth vein about five times as long as the preceding 

 section 2. 



Discal cell minute, the posterior crossvein nearly opposite the anterior; ulti- 

 mate section of the fifth vein eight or more times as long as the pre- 

 ceding section 3. 



