MB. WALKEK ON DIPTERA COLLECTED IN AMBOTNA. 151 



Abdomen deep black, with a whitish grey band on the hind border of 

 each segment ; tip wholl}' whitish-grey. Legs pale testaceous ; coxae 

 black ; femora black on the apical half ; tarsi with black tips. Wings 

 long, greyish ; veins black ; praebrachial vein forming an angle which 

 emits a fork; halteres whitish. Length of the body 3 lines; of the 

 wings 8 lines. 



Fam. STEPHIDJE, Leach. 



Gen. CEEATOPnxA, Wied. 



30. Ceratophya Indica. FcBm. Testacea, capite maculis tribus nigris, 

 antennis fulvis articulo 3° longissimo, thoracis disco nigro, abdomine 

 lituris tribus fasciis duabus latis apiceque nigris, alis subcinereis apice 

 subnigricantibus, areola subapicali ex parte bisecta. 



Ceratophya Indica, Dol. Nat. Tijd. Ned. Ind. 1857, p. 404. 



Female. Testaceous. Head with a black spot on each side of the 

 vertex, and with a third black spot at the base of the antennae. An- 

 tennae tawny ; 3rd joint linear, very long. Disk of the thorax black. 

 Abdomen fully twice the length of the thorax ; 2nd segment with a 

 triangular black dorsal stripe, and with an elongated black spot in 

 front on each side ; 2nd and 3rd segments with broad black bands on 

 their fore borders ; tip wholly black. Wings slightly greyish, slightly 

 blackish at the tips; veins black; subapical areolet partly bisected. 

 Length of the body 5 lines ; of the wings 8 lines. 



Gen. Eeistalis, Latr. 



31. Eristalis Agno, Walk. Cat. Dipt. pt. 3. p. 625. 

 Inhabits also Australia. 



32. Eristalis splendens, Leguillon. See vol. iii. p. 95. 

 Eristalis metallica, Dol. Nat. Tijd. Ned. Ind. 1857, p. 406. 



.33. Eristalis inscripta. Mas. Viridis, nitens, capite antico aeneo 

 vittis duabus albo tomentosis, antennis rufis, thorace maculis quatuor 

 lateralibus vittisque tribus nigris, abdomine aeneo-viridi fasciis duabus 

 connexis maculisque sex posterioribus nigris, alis limpidis vitta sub- 

 costali nigricante, halteribus albidis. 



Eristahs inscripta, Dol. Nat. Tijd. Ned. Ind. 1857, p. 40. 



Male. Green, shining. Head in front aeneous, with a broad stripe of white 

 pile on each side. Eyes with the facets in front more minute than 

 those above. Antennae red ; arista simple. Thorax with three slender 

 middle stripes and with two large black spots on each side ; forepart 

 with cinereous bloom ; scutellum bluish-green. Abdomen aeneous- 

 green ; 2nd segment with two black bands which are connected by a 

 broad black stripe ; 2nd and 4th segments with three black spots on 

 each. Legs black. Wings limpid, with a blackish subcostal stripe 



