630 Mr. F. W. Etlwarcls on Formosan Culicidre. 



Cidex sliiens, Wied. — *T{ikao. 



Culex vishnui^ Tlieo. — Tailiokii, Daitotei. 



Culex tritceniorki/uchus, Giles. — Mucuyania, Daitotei, San- 



sliikyaku, * Takao. 

 Culex f'ltiyansj Wied. — A laro-e number. 

 Cidex fuscorephalus, Theo. — Hokuto, Sansliikyaku. 

 Cidex {Loph'jceratomijia) riihithoracis, Leic. — Taihoku. 

 Rachionotomyia sp. [? bambusa, Yam.). — *Polisha. 



Megarhinus manicatus, S|>. ii. 



? . Head oXotheH mostly with dark bronze-coloured scales; 

 a silvery-white rim round the eyes. Proboscis and palpi with 

 ])urp!e scales, the latter slender, reaching to the base of the 

 fifth flagellar joint. Torus black, with white pollinosity. 

 First flagellar joint without scales. Thorax : prothoracic 

 lobes with greyish-silvery scales o\\\y. Froepimera for the 

 most part silvei y-scaled, but some purple scales on the upper 

 part. Mesonotum rubbed, the remaining scales nearly all 

 metallic green, except on the scutellum, where they are 

 coppery golden. Pleurae largely covered with silvery scales, 

 with a slight golden tinge in some lights. Abdomen clothed 

 with bluisli-purple scales above ; sides of the first tergite and 

 small lateral basal patches on the succeeding tergites shining 

 Avhite. No lateral scale-tufts, but the eighth segment with 

 rather long and dense terminal golden bristles. Venter 

 mostly golden ; sternites 4 and 7 almost entirely |)urple, the 

 remaining sternites with a narrow median purple stripe. 

 Legs purple-scaled ; femora golden beneath almost to the 

 tips; front and mid tibige with indications of a golden stripe 

 on the outer or hinder side. All the tarsi with a broad 

 creamy-white ring, which on the front and mid legs includes 

 the tip of the second joint, the whole of the tiiird and fourth, 

 and the base of the fifth, but on the hind legs includes only 

 the fourth joint and the extreme tip of the third ; in addition, 

 the first tarsal joint of the middle and hind legs has a distinct 

 though rather narrow creamy-white ring; fifth tarsal joint 

 on all legs mostly blackish. Wing.s\\\i\\ brownish membrane 

 and a distinctly darker brown cloud over the cross-veins. 

 Wing-scales small and thinly spread, wings thereforeappearing 

 almost bare. Longitudinal portion of the bent r— m cross- vein 

 of the same length as the vertical portion ; the m-cu cross- 

 vein slightly external to the vertical ])ortion of r-m. Stem 

 of halteres orange; knob daik, clothed with golden scales. 

 Wing-length 7*5 mm. 



FoiiMOSA : Toa Tsui Kutsu, v. 1914 [H. Sauter). 



