372 Miss G. Rlcardo on the Pangonina; 



Oriental Region. 



The described species from this region included in Van dor 

 AVulp's 'Catalogue of the Diptera of S. Asia/ 1896, number 

 twenty. Of these C. parallelus, Walker (Proc. Linn. Soc. 

 V. p. 276, 1861), does not belong to the genus Chrysops ; 

 C. ligatm and C. terminalh, Walker (List Dipt. pt. i. p. 195, 

 1848), are synonyms of C. dlymr, Fabr. C. albicinctus, 

 Wulp (Tijd. V. Ent. xi. p. 303, 1868), from New Guinea and 

 Salawatti, is now included among the species from the Austra- 

 lian Region. C. translucens, Macq., and C. pellucidus, Fabr., 

 are regarded as two distinct species. C. Mlokosiewiczi, 

 Bigot, and two new species are added, which makes the 

 number still twenty. C. alter, Rondani (Ann. Mus. Civ. 

 Gen. vii. p. 460, 1875), owing to the imperfect description, 

 is not included in the synoptical table. To Wulp's Catalogue 

 should be added : — 



C. Mlokosiewiczi, $, Bigot, Ann. Soc. Ent. Fr. (5) x. p. 146 (1880). 

 [C. iranensis, $ , Bigot, M^ui. Soc. Zool. France, v. p. 602 (1892).] 

 — N. Persia, Caucasus. 



The Walker type named Chrysops parallelus apparently 

 belongs to the Tabaninse, as no spurs seem present on the 

 hind tibiaj ; it should belong to the genus Diachlorus, where 

 it is placed for the present, but the fore tibiae being straight, 

 not dilated, makes it doubtful whether it should remain 

 there ; only one species of this genus is as yet recorded from 

 the Oriental Region. The antennae (now broken off) have 

 the first joint long, the second very short, discous in shape, 

 the third as long or longer than the first, with five annula- 

 tions, the first of these as long as the other four together and 

 indistinctly marked with four divisions; they are yellow in 

 colour, darker on the third joint. 



A specimen marked C. cribrata, Wlk., from Java, evidently 

 only a manuscript species, is not a Chrysops, but a Htemato- 

 pota. 



1. Wings with a dark transverse band and an 



apical spot 2. 



Wings with a dark transverse band, but 

 no apical spot lo. 



2. Wings with a hyaline sinus on the poste- 



rior border of the band 3. 



Wings without a hyaline sinus on the 



posterior border of the band 10. 



S. Abdomen yellow, livid at its base setuicirculus, $ , Wlk. 



Abdomen yellow, with black longitudinal 



btripes 4. 



