20 inse;cutor insciti^ menstruum 



with distinct white basal lateral spots and ventral bands. Wing 

 scales elliptical. Hind tarsi with rings on both ends, last joint 

 white. Fore and mid legs without rings. This species comes 

 near taeniopus. 



Melanoconion theobaldi Lutz. 



Identical with Culex chrysonotum Dyar and Knab. 



Melanoconion luteoplenrum Theobald. 



A very striking mosquito. Proboscis moderate, black. Palpi 

 very short. Head clothed with some narrow curved gray scales 

 especially on the eye margins and many yellow upright forked 

 scales and some flat creamy ones laterally. Prothoracic lobes 

 collar like, yellow. Mesonotum black with black narrow curved 

 scales. Pleurae deep yellow, the yellow separated from the 

 dorsal black in a sharp straight line. Scutellum black. Post- 

 notum black, nude. Abdomen black above; distinct narrow 

 yellow lateral basal patches. Legs dark. Femora and tibiae 

 swollen apically. Wing scales dark elliptical. From Para. 



Culex spissipes Theobald. 



The type has traces of brown spots in the golden part of the 

 disk. Our material from Surinam shows that these spots vary 

 very much in size. Culex fur Dyar and Knab is a synonym. 



Neomelanoconion chrysothorax Newstead and Thomas. 



This species differs from chrysonotum by the broad white 

 apices of its femora and tibiae. The golden narrow curved 

 scales of the mesonotum are more or less arranged in lines. 

 The wing scales are intermediate between spissipes and chry- 

 sonotum. It seems to be a distinct species coming nearest to 

 chrysonotum of which it has the size. The specimens were 

 from Manaos. 



Melanoconion indecorabile Theobald. 

 Can not be placed. 



Culex humilis Theobald. 

 Can not be placed. 



