I9I3-] M. Bezzi: Indian Trypaneids {Fruit-Flies). 135 



40. Zonosema dubium, n. sp. d- . 



(PI. ix, fig. 41). 



A yellow middle-sized species, with narrow elongate brown-spotted wings. Length 

 5-5 mm. 



Head yellow, the frons darkened above the antennae and with a small black 

 ocellar dot ; face below on the cheeks whitish-cinereous ; antennae, palpi and proboscis 

 yellow. All the bristles on the head and thorax are black. Thorax wholly yellow, 

 opaque (?) on the back, shining on the pleura. Scutellum yellow, metanotum black. 

 Abdomen wholly yellow, shining. Legs yellow. Wings hyaline, with 5^ellowish veins 

 and the following marks : a broad black spot on the anal cross- vein, which is the most 

 striking of all ; a brown streak at the fore border after the small cross- vein, running 

 from the border to the third vein ; a broad brown spot before the tip of the second 

 vein, which does not reach below the third vein ; a broad border at the tip of the wing, 

 beginning at the middle between the 2nd and 3rd veins and extending to the tip of 

 the 4th ; the two cross- veins are bordered with brown, the border of the hind vein 

 being continued above into a small streak reaching the third vein ; the stigma is pale 

 yellow and below this, in the base of the submarginal cell, in the base of the first 

 basal cell and in the base of the discal cell, are to be seen yellow shades. 



A single male specimen from Naini Tal, May or June 1893, Lucknow Mus.,-^ff-. 



21. Vidalia, Robineau-Desvoidy. 



Robineau-Desvoidy, Essai sur les Myodaires, 719, xü (1830). 



Distinguished by the very short antennae, by the retreating face, by the small 

 cross- vein placed after the middle of the discal cell, and in the male sex by the broad 

 and deep excavated frons, bearing horn-like processes and rigid and incrassated or. 



Head as high as broad, the eyes a little narrowed ; antennae very short, not 

 reaching the middle of the face, third joint only a little longer than the second, 

 rounded at the end, with a very short pilose arista ; face flat, distinctly retreating 

 inferiorly ; cheeks more or less broad ; frons of the male broad, deeply excavated 

 towards the middle, with lateral edges elevated, often forming horn-like processes, 

 bearing the very incrassated and rigid orbital bristles , which are truncated at the end ; 

 oc. very small or indistinct ; or. variable in number, being partly very incrassate, 

 rigid and erect ; 2 vt. ; pvt. short and convergent ; occipital row black ; genal bristle 

 strong. 



Thoracic chaetotaxy complete ; 2 nipl. ; pt. strong. Scutellum flattened, triangu- 

 lar, with four bristles, the apical not crossed. Abdomen broad, narrowed at the base, 

 bristly at the tip. Legs short and robust ; middle tibiae with a single spur ; the row 

 of the hind tibiae well developed. 



Wings with a small indistinct costal bristle ; first longitudinal vein short ; second 

 straight; third and fourth parallel, the third bristl}^ ; small cross- vein placed after 

 the middle of the discal cell ; posterior cross-vein perpendicular ; lower angle of the 

 anal cell drawn out into a small point, as long as the second basal cell, which is rather 



