326 PROCEEDINGS OF THE NATIONAL MUSEUM vol. m 



blurred cloud, pale to dark brown in color, at apical process of anal 

 cell. Each of the three distal bands connected to stem band, which 

 extends from wing base to marginal cell along anterior wing margin; 

 the two proximal bands unite with yellow wing base; apical band 

 borders costa from submarginal cell usually to tip of third longitudinal 

 vein (i?4+s), with apex slightly penetrating into first posterior cell; 

 subapical band rather straight, extending from submarginal cell to 

 tip of fourth longitudinal vein (Mi); median band running from tip of 

 subcosta to tip of fifth vein {Mz-\-Cui), covering both inner (ta) and 

 outer (tp) cross-veins — an outstanding generic character; prebasal 

 band as curved as median, running parallel with latter from base, 

 attaining posterior margin of wing halfway between tips of fifth and 

 anal {Cu-\-An2) veins; basal band running from base toward tip of anal 

 vein. Three variable dark brown to black spots in stem band border- 

 ing anterior wing margin from wing base to middle of second costal 

 section (marginal cell): one at tip of humeral cross-vein (th), one 

 surrounding rectangularly bent tip of subcosta, and one at tip of stem 

 band at middle of second costal section; distad of this spot usually a 

 variable hyaline spot; a dark costal spot is present in the apical band 

 proximad to tip of second longitudinal vein (i?2+3) in several species, 

 but absent in many others ; of ten a small hyaline spot at tip of 

 second longitudinal vein. 



Venation in this genus shows the general characters of the family 

 Tephritidae and of the subfamily Trypetinae in having apical portion 

 of subcosta rectangularly bent toward costa ; apical part of this vein 

 again rectangularly bent, turning parallel with costa toward base; 

 anal (cubital) cell with acute and rather long apical process; first vein 

 (Ri) densely spinulose on upper surface of wing. Inner and outer 

 cross-veins very closely spaced ; third vein usually spinulose from base 

 to apical yellow band on superior, and from base to anterior cross- 

 vein on inferior surface; base of ultimate section of fourth vein (Mi) 

 more or less distinctly curved upward toward anterior wing margin, 

 the tip usually straight or very slightly upcurved ; second vein usually 

 nearly straight, sometimes slightly curved; apical part of third vein 

 more or less distinctly downcurved toward wing apex, apical portions 

 of third and fourth veins usually slightly divergent. Humeral cross- 

 vein running obliquely from costa toward wing base; outer cross-vein 

 {tp) usually nearly perpendicular to anterior margin of wing; anterior 

 cross-vein (ta) nearly always more oblique than tp, extending from 

 fourth longitudinal vein toward apex of stigma; ta and tp cross-veins 

 nearly parallel in some species, in others distinctly divergent toward 

 anterior wing margin. Section of fifth vein posteriorly bordering dis- 

 coidal cell nearly straight or curved toward posterior wing margin. 

 Inner cross-vein subequal to, shorter or longer than penultimate 



