GENUS T^NIORHYNCHUS 361 



bright yellow, with dark fringes to the hind borders of the segments. 

 Halteres yellow with dusky knobs. Length. — 5 nam. 



Habitat. — Straits Settlements ; Perak. November and December ; 

 Selangor, October ; Formosa. January and Jiuie. 



2. TiENIORHYNCHUS ANNETTII, Theob. (Monog. II, p. 205). 



Plate xiii, fig. 10, Male genitalia. 



Wings unspotted, densely clothed with uniformly In'ownish- 

 yellow scales, which are of typical form, except on V and VI, 

 where they are linear. Tarsal joints not obviously banded, being 

 too pale generally to render their darker apices conspicuous. 

 Thorax pale yellow with a brown patch on either side in front. 

 Abdominal segments more or less distinctly basally pale banded, 

 rich yellow, with dark hind borders. Ungues of J equal and 

 simple; of the 3 unequal, the larger uniserrated, the smaller 

 simple. 



Head brown, with narrow cur\-ed pale yellow scales, almost white 

 round the eyes, and with long thin yellowish and brown upright forked 

 scales; antennae brown, basal joint yellowish -brown ; second joint rather 

 swollen, verticillate hairs brown, placed close to the base of the joints ; 

 palpi densely scaled, dark brown at the base and apex ; proboscis spatu- 

 late, yellow at the base, black at the apex. The very base is black 

 in both sexes, especially in the J , but the tints shade oft' into each 

 other so that the band is ill-defined. Legs yellow, with darker tips to 

 the jomts. Haltei-es pale ferruginous, stems and knobs. The claspers of 

 the male are of very singular form, each consistmg of a helmet-shaped 

 apical lobe connected with a stout base by a long thin stem. Length. — 

 4*8 mm. 



Habitat. — Old Calabar, AVest Africa. 



3. TiENIORHYNCHUS FULYUS (Wiedemann). 



= Culex flavicosta. Walker. 



("A. Z. I." p. 546 [1828], Wiedemann ; Ins. Sauud. p. 431, Walker.) 



Plate xiii, fig. 9. Wing to show venation and variation of length of 



scales (drawn from Walker's type oifiavicosta). 



Veins of wings densely fx'inged with uniformly golden scales 

 of typical form. Hind tarsi with yellow apical bands, not very 

 noticeable on other legs owing to general light coloration. Thorax 

 yellowish in front, darker behind, with yellow scales in front and 

 dark behind ; abdomen rather hairy, with yellowish-brown scales, 

 the hind borders of the segments lighter. Proboscis darker at 

 apex and base, but not obviously banded. General coloration of 

 insect fulvous. 



