HELOPlllLUS. 207 



short yellowish-white pubescence ; scutelluin brownish-reil. Ab- 

 domen much luirrowed posteriorly, tip ratlier clubbed. On 2iid 

 segment a brown baud and behind it a black one near posterior 

 margin, both broadened in middle and not reaching side margins. 

 Two next segments always with two dull black cross-bands, which 

 reach side margins, and on 4th segment are even themselves 

 joined below. 5th segment only black at tip and sides. The 

 reddish-brown parts of the abdomen are rather deeper, shining, 

 the black parts dull ; emarginations whitish. Pubescence short, 

 whitish, but black on the black parts. Legs: tore pair mainly 

 yellowish-brown ; front side, and in the femora the upper side 

 also, blackish-brown. Hind femora yellowish-brown, blaciv above 

 and at tip, and in addition with a black ring above middle and a 

 blackish spot on outer side near base. Tibia) nearly wholly^ dark ; 

 tarsi yellowish-brown. A large yellowish-brown obtuse prominence 

 at base of hind femora. Wings clear; a blackish streak between 

 the auxiliary and subcostal veins. 



Length, 11 mm. ; of wing, 8 mm. 



2 . Frons and face shining black, with yellowish-white dust at 

 sides ; anteiHise brown, arista tawny ; eyes bare. Thorax lightly 

 grey-dusted, more thickly so along suture; scutellum testaceous. 

 Abdomen curved underneath towards tip, each segment with a 

 black band behind anterior margin and before hind margin. Legs 

 testaceous, with yellowish pubescence; femora black on upper 

 side, hind pair thickened, a post-basal black ring and a post-basal 

 black spot on their under sitle. Wings slightly yellowish. 



Described 'n-iginally from a (S in iServille's collection from 

 Java. De Meijere redescribed (1904) the species from a c? from 

 Darjilingand a $ from an unrecorded locality, but in his later paper 

 {op. cit. 1908) he i-ecognised the supposed $ as the d" of an allied 

 African species. My description of the c? is a translation of 

 de Meijere's description of that sex, and that of the $ given 

 above is translated from Macquart's original descri])(ion. 



164. Helophilus insignis, 117/ /^. (PI. Y, figs. G, 7.) 



Jlc/ojj/ii/u'i iii.-<ii/7ns, Walkia-, Vyov. Linn. Soc. Lund, i, p. 17 (]8.")(j); 



Doleschall, Nut. Tijd. Ned. lud. xiv, p. 40!», pi. ix, fig. 4 (1857). 

 Jletop/iilus duleschdUi, Hruiietti, Ivec. Incl. ]Mus. ii, p. (i8 (1908), and 



i, pi. xii, fifrs. 7, 8, 9 (1907) ; de Meiiere, Tijd. v. Ent. Ivii, 



p. 148 (1914). 



S $. Head: in J , vertical triangle very elongate, black with 

 yellowish-grey dust and a little black ])ubescence. Eyes touching 

 for only tin-ee or four facets, the latter uniform in size. Prons 

 and face yellow- dusted, covered with long soft pale yellow jnibes- 

 cence; antennal prominence very prominent, shining black with 

 long erect stiff black hairs; the extreme edge brownish-orange; 

 facial median liiu; shining black, bare. Antennal 1st and Und 

 joints brownish-orange to blackish, arista brown. Upper montii- 

 border with yellowish-grey dust but \\ithout pubescence. C)c(ii)ut 



