418 GNATS OR MOSQUITOES — CHAPTEU XIII 



dark except at base, with small yellow knee-spots. Venter mostly white, 

 with narrow lateral dark patches. Length. — 4*5 to 5 mm. 



Habitat, — Canada ; Manitoba. July and September ; a sylvan 

 species. 



49. CULEX TESTACEUS, Van der Wulp 



[Tijdschr. voor Ent. p. 128 (18G9)]. 



Tarsi dark- scaled with a white band at the base of the two 

 upper joints of the hind legs only. Thorax brown, with creamy 

 curved scales, and golden hairs at the roots of the wings. Abdo- 

 men, covered with dusky black scales, with creamy ones at the 

 bases, and a few at the apices and on the middle of the segments. 

 Tarsal claws of $ , equal, all with an accessory tooth. 



5 . — Head dark brown, with pale curved scales in the middle, black 

 upright ones behind, and flat creamy ones at the sides ; antennae testa- 

 ceous, with narrow pale bands ; palpi testaceous, black scaled at the 

 apices ; proboscis testaceous, with brown and creamy scales, black at the 

 apex and dusky at the base ; clypeus chestnut-brown. Pleune deep red- 

 brown, with white scales. Legs and insect generally, including the veins 

 of the wings, of a bright testaceous tint. Length. — 6 mm. 



Habitat. — North America ; Ontario. 



50. CULEX TERRENS, Walker (Ins. Saund. p. 429). 



Tarsi dark, with basal white bands on the upper joints of fore 

 and mid legs, and the hind legs adorned in an exceptional manner ; 

 the first joint being white both at base and apex with a broad 

 black band in the middle, the next all white, and the third joint 

 with a broad tasal white band, while the last two joints are 

 unhanded. Thorax brown, with broad lateral patches and the 

 middle line paler. Abdomen with metallic purple reflections and 

 golden-orange scales scattered over it, with five pairs of distinct 

 white lateral spots, and two, on the sides of the penultimate seg- 

 ment. Covered with dense golden-brown hairs. 



Head brown ; eyes black, bordered with a line of white scales ; 

 proboscis, palpi and antenme deep cliestnut-brown. The phnnes of the 

 male antenna; deep silky brown. No traces of banding on the palpi. 

 I'leuriE marbled cutaneous and white. Legs broMn, paler at their bases, 

 especially below. Length. — 6 mm. 



Habitat. — South America. 



Observations. — No one could recognise this species from Walker's 

 description ; but the broad white band, involving three joints of the 

 liind tarsi, is absolutely distinctive. It appears to be rare, as no fresh 

 specimens have reached the British Museum. 



