JOURNAL JOfId igoph €{nl^onioIogiraI %nmi^. Vol. XXI. DECEMBER, 1913. No. 4 A SYNOPSIS OF THE DIPTEROUS GROUPS AGRO-. MYZIN.aE, MILICHIIN^, OCHTHIPHILIN^ AND GEOMYZIN^. By a. L. Melander, Pullman, Washington. (Continued from p. 273.) Subfamily GEOMYZIN^. Table of the Genera. Middle of face with a pronounced tubercle ; anterior fronto-orbital procHnate ; calypter entirely devoid of cilia ; only the root of the auxiliary vein present, the costal break immediately before the end of the first vein ; cheeks comprised largely of the lateral prolongations of the center of the face; mesopleurse entirely bare. (North America.) Sinophthalmus Coquillett. Face not tuberculate ; anterior fronto-orbital reclinate ; calypteres fringed with cilia ; auxiliary vein weak, but usually meeting the costa some dis-tance before the end of the first vein, at which place normally is located the costal break ; lateral prolongations of the center of the face narrow ; mesopleurse often setulose or bristly 2. 2. Cheeks narrow, less than one fourth the eye-height, the center of the face broader than the cheeks at the vibrissae; arista plumose to loosely pubescent, more than one and one half times the length of the antenna, its basal segment long, the third antennal joint with fine but per-ceptible pubescence, especially along the front edge ; upper occiput 283
BioStor
