Genus Grabhamia. 309" 



of characteristic spines. The last segment has a single dorsal 

 tuft with a large bristle below it ; the ventral fan rather long 

 and prominent, four ventral small tufts. 



Length. — When mature, 9 mm. 



The pupa has cylindrical siphons contracted towards the apex, 

 with small, slightly oblique, opening ; there is a dense median 

 tuft on the first abdominal segment. The anal fins are large, 

 rounded, with median rib and double-contoured border towards 

 the base of each fin ; a distinct apical dorsal tuft on the last 

 segment. 



Length. — 5 mm., with anal fins, 6 mm. 



Grabhamia discolor. Coquillett (1903). 

 Culex discolor. Coquillett (1903). 



Canad. Entomo., p. 256, Sept. (1903) ; Mosq. N, Y. State Agri. Exp. Sta.,. 



p. 193 (1904), Smith. 



This species comes near G. pygmaea, but is clearly a very 

 distinct and marked species easily told by the spots of dark 

 scales on the wings. 



I have been unable to obtain any specimens, so the original 

 description is appended ; a much fuller one has been given by 

 Smith, whose figures of adult and larval characters are reproduced 

 here. 



Coquillett 1 s description : — 



" Female : differs from nanus as follows : — Palpi with a cluster of 

 white scales at the apices, upright scales of occiput yellow, whitish cross- 

 bands of abdomen prolonged forward in the middle, crossing or almost 

 crossing the segments, scales on posterior side of front and middle tibiae, 

 and on anterior side of the hind ones almost wholly pale yellow, first tarsal 

 segment bearing many yellow scales, black and yellow scales of wings 

 not evenly distributed, the black ones forming a distinct spot at forking 

 of the second vein with the third, another od upper branch of fifth vein 

 at the hind cross-vein, and a third on the apical third of the last vein,, 

 remaining scales of this vein wholly yellow ; length 4 mm. A specimen 

 from Delair, New Jersey, received from Prof. Smith. 



" Type.—lso. 6894, U.S. National Museum." 



Smith gives the size as 4 to 6 mm. and the fuller following 

 details : — 



" Occiput covered with yellowish scales. Palpi in| $ 4-jointed r 

 rather broad, terminal segment reduced to an extremely small circular 

 knob (a generic character. — F. V. T.). Palpi in $ 3-jointed, the basal 



