378 Dr. Benno Wandolleck: Bericht über die wissensch. Leistungen 



Therevidae 11 sp., Scenopiniclae 1 sp,, Empidae 6 sp., Dolichopodidae 

 37 sp.. Syrphidae 46 sp.^ Conopidae 9 sp,, Pipuncxdidae. 1 sp., Oestridde 

 2 sp., Tadiinidae 65 sp., Dexidae 6 sp., Sarcophagidae 12 sp., Muscidae 

 10 sp., Anihomyidae, 15 sp., Cordyliiridae 2 sp., Sciomyzidae 3 sp., 

 Micropezidae 4 sp., Ortalidae 19 sp., Trypetidae 12 sp., Lonchaeidae 

 1 sp., Sapromyzidae 5 sp., Sepsidae 1 sp., Piophilidae 1 sp., Ephy- 

 didae 15 sp., Geomysidae 1 sp., Drosophüidae 6 sp., Oscinidae 10 sp., 

 Agromyzidae 7 sp., Borhondae 1 sp., Phoridae 2 sp., Hippohos- 

 cidae 5 sp. 



Verfasser giebt folgende Diagnosen der neuen Genera: 



Pseudochaeta n. gen. Anterior pair of ocellar bristles wan- 

 ting, two pairs of backwardly curving orbital bristles in both sexes 

 and an additional pair of forwardly directed ones in tbe female; 

 the Upper pair of frontal bristles is on a line with the backwardly 

 curving orbitals and considerably removed from tbe other frontals 

 wich are much smaller and decussate, extending from the lowest 

 ocellus to the arista; antennae as long as the face, the third Joint 

 in the male five times, in the female three times as long as the 

 second; arista bare, the penultimate Joint not longer than broad; 

 head at Insertion of vibrissae half as long as at base of antennae, 

 face in provile convex, the sides bare, each at the narrowest part 

 one-eighth as wide as the median depression, ridges bristly on the 

 lower four — fifths ; vibrissae widely separated, inserted on the oral 

 margin; cheeks one-seventh as broad as the eye-height, the lower 

 half covered with short bristly hairs, the usual row of macrochaetae 

 on the lo Werborder; eyes microscopically pubescent; proboscis robust, 

 the portion beyond the basal articulation not half as long as height 

 of head, labella very large ; palpi clavate, well-developed. Abdomen 

 oblong-oval, of four Segments wich are subequal in length. Hind 

 tibiae outwardly ciliate whit short bristles intermixed with two or 

 three longer ones. Third vein bearing a few bristles at the base, 

 the others bare; apical cell open, ending at four — fifths of the 

 distance bet owen the second vein and the extreme wing-tip; bend 

 of fourth vein obtuse, destitute of an appendage; hind cross vein 

 sligthly nearer to the wing-margin than to the small cross vein. 



Johns onia n. gen. First, third and fifth veins bristly 

 hind cross vein perpendicular, at two — fifths the distance from the 

 small cross vein to the bend, the latter rectangular and bearing a 

 long appendage, apical cell short petiolate. Antennae nearly as 

 long as the face, arista long plumose on the basal three — fifths, the 

 remainder naked; sides of face bearing short bristly hairs, at nar- 

 rowest part nearly half as wide as the median depression, the 

 latter not carinate; ridges bare, straight, diverging, below, vibrissae 

 strong, widely separated, on the oral margin; cheeks one — sixth as 

 broad as the eye-height, ej^es bare; proboscis much shorter than 

 height of head, labella large, palpi well-developed. 



Helicobia n. g. First and third veins bristly, the others 

 bare, apical cell open, ending at three — fifths the distance from secon4 



