1909.] Records of the Indian Museum. 425 



Wings. — Pale yellow, costal border darker j^ellowish brown ; 

 stigma brown, distinct. Halteres light brown, with a black spot 

 on upper side of knob. 



Described from one specimen in the Indian Museum collec- 

 tion from Sibsagar, in fairly good condition except as regards the 

 legs. Bigot's description of his flaveolus is ver}^ short, and would 

 apply to the present species, but as he marked fulvidus himself 

 as a new species I presume it to be distinct. 



N .B. — I am very strongly of opinion that Macello palpus is 

 synonymous with Leptipalpus , Rond. (1850), and that Heliomyia, 

 Dol., is another synonym, but I allow Macello palpiis to stand until 

 the & is known (I have seen no mention of this sex). 



It resembles Leptis in the large palpi, and Chrysopilus in the 

 closed anal cell. If the a" is found to have long, thin palpi 

 as in ferruginea, Wied. (cf), the three species C. ferruginosa, Wied., 

 M. flaveolus, Big., and my fulvidus, would form a natural group, 

 which would be the Heliomyia of Doleschall, erected for his ferru- 

 ginea (= ferruginosa, Wied.). 



The re-establishment of Heliomyia was hinted at b}' Osten 

 Sacken (Ann. Mus. Gen,, xvi, 421), and he also suspected that his 

 Chrysopila lupina was congeneric with Wiedemann's species. 



The only specimen of ferruginosa, Wied., that I have seen is 

 a perfect 9 taken by myself at Batavia, 5-vii-o6 ; and in this 

 the spatulate palpi seem to separate it from the other species of 

 Chrysopilus, and to approximate it to Macellopalpus. 



Osten Sacken claimed that Schiner was wrong in placing ferru- 

 ginosus in Chrysopilus, as although the & has the long thin palpi 

 characteristic of the genus, the spatulate palpi of the ? makes the 

 species an abnormal one, and is a sexual character only. 



On the other hand, if Leptipalpus has long thin palpi in the & 

 and Macellopalpus is found to have the same, the former name 

 must be adopted, and in that case the full synonymy of the genus 

 and species would be as follows : — 



LEPTIPALPUS, Rond., 1850, Nuov. Ann. d. sci. Bolog., ii, 183. 

 Heliomyia, Dol., 1857, ^^t. Tijd. Ned. Ind., xiv, 402. 

 Macellopalpus, Big., 1886, Bull. So. Ent. Fr., xlviii. 



1. ferruginosa, Wied. {Leptis id., Zool. Mag., iii ; Dip. Ex., i ; 



and Auss. Zwei., i, 224. Heliomyia ferruginea, 

 Dol., loc. cit. ante, pi. vii, 5.) 



2. flaveolus, Big., 1886. {Macellopalpus id.. Big., loc. cit. ante.) 



3. waigiensis. Big., 1887 (? Leptipalpus), BuU. So. Zool. Fr., 



xii, 108. 



4. fulvidus, mihi, sp. nov. {Macellopalpus id., Big., nom. nud.) 



Leptipalpus waigiensis. Big. 



Placed by the author provisionally in this genus, the head 

 in the type specimen being in bad condition, I have not seen the 

 species mentioned since. 



