164 btbionid.t:. 



present from 8emarang, ii. 05 and i. 06, and Bafavia, viii. x. 07, 

 both in Java, In the Pusa collection, from Pusa, 2. iv. 06 and 

 iii. 07, and Chapra, Bengal ; Kandy, Ceylon, x. 00. Outside of om* 

 limits the species occurs also in Java, Borneo, Sumatra, Papua, 

 other East Indian islands, and the Philippines. It is probably 

 found throughout the whole of the Orient. 



Type. The location of the individual type, if indeed any one 

 specimen was set up as such, is uncertain. The species is repre- 

 sented in the older collections, such as those of Fabricius, Wiede- 

 mann, and Westennann. 



Through the kindness of Mr. E. E. Austen, who has examined 

 the type male and female of sxihvariavs, Walk., in the British 

 Museum, I am able definitely to allot this name synonymic i-ank. 

 Prom notes on P. tJioracica, Gruer., supplied by the same gentleman, 

 I have no hesitation, knowing the variability of P. fulvkollis, in 

 regarding Guerin's species as also identical ; and further, I am 

 enabled to correct the reference to F. ilioracica as given by Van 

 der Wulp. 



im. Plecia tergorata. Bond. (PI. XII, fig. 17.) 



riecia teryoratit. Rondani, Ann. Miis. Civ. Geneva, viii, p. 4G2 

 (1875) ; Osten Sacken, op. cit. xvi, p. 397 (188]). 



S $ . Head black ; vertical triangle distinct and elevated. 

 Antenna; ten-jointed ; scapal joints almost cylindrical, narrower at 

 tlie base, the first rather shorter ; 1st flagellar joint longer than 

 the others, subcylindrical, narrower at the base, the following six 

 joints flattened bead-shaped, apical joint very minute, flattened 

 conical. Erons in female over a third the width of the head ; 

 the longitudinal ridge not so distinct as in P.fulvicollis. Thorax: 

 the dorsum only, reddish orange, the anterior portion in many 

 examples, irrespective of sex, more or less blackish brown ; except 

 the dorsum and the concolorous scutellum, all the remainder of 

 the thorax is black, including the metauotum ; the three dorsal 

 stripes are occasionally quite obvious, the median one often 

 reduced to two thin lines ; normally they appear to be very 

 faint or wholly absent ; when present they reach often from the 

 anterior border to the middle, but never extend to the posterior 

 half. Abdomen black, with a little black pubescence. Genitalia 

 more slender than in P. fulvicollis. Leys all black, normally 

 pubescent, comparatively long. Wivgs dark grey, the anterior 

 border barely darker ; veins distinct; stigma distinct, oval, dirty 

 brown. Ilalteres fuscous. 



Length 3|-5 millim. 



Bedescribed from several of each sex in the Indian Museum 

 collection from the Himalayas ; Bhim Tal, 10-27. ix. 06, Sukna, 

 l.vii. OS (both Annandale) ; Ivurseong, Darjiling, 6-9. viii. 09 

 {Paiva) ; Shan Hills, Tipper Burma, 26.vi. 10 (Annandale and 



