552 A Monograph of Culicidae. 



Length. — 5 mm. 

 Time of capture. — November. 

 Habitat. — Brazil (Dr. Lutz). 



Observations. — Described from a perfect ? given me by Dr 

 Lutz under this name. 



Genus GUALTERIA. Lutz. 

 Mosquitos do Brasil, Bourroul, p. 47-54 (1904). 



Head with flat scales all over. Palpi short in both sexes. 

 Thorax with spindle-shaped scales in front, flat behind and on 

 the scutellum and prothoracic lobes. 



Abdomen with the apical segments expanded apical ly in a 

 ventral direction. 



Wings with scales similar to Stegomyia. 



Close to Haemagogus, but easily told by the peculiar form of 

 the apical abdominal segments on the venter. 



Lutz describes two species — 



(i) Gualteria oswaldi. 

 (ii) Gualteria fulvithorax. 



both from Brazil. 



They may be told as follows :■ — 



Mesonotum white and black oswaldi. Lutz. 



Mesonotum dusky gold fulvithorax. Lutz. 



Gualteria oswaldi. Lutz (1904). 

 Mosquitos do Brasil, pp. 47 and G6 (1904). 



Head black with a V-shaped silvery white median area and 

 silvery border around the eyes ; proboscis and palpi black with 

 violet reflections. Thorax black with silvery-white scales forming 

 a spot in front, on the prothoracic lobes and two broad transverse 

 lines on the pleurae. Abdomen black with purplish blue reflections 

 and silvery -white basal spots, showing on the dorsum and last few 

 segments, the apical segments projecting ventral ly. Legs black, 

 unhanded, femora with two snow-white spots, one apical, legs 

 showing metallic violet reflections. 



9 . Head black, clothed with flat black scales, a median 

 double row of white ones expanding into a broad area between 

 the eyes, a narrow rim around them and expanding out on each 



