882 MOSQtriTOES of north AMERICA 



Island, Porto Bello Bay, Panama, January 34, 1908 (A. H. Jennings) ; 

 Gatun, Canal Zone, Panama, August 11, 1908 (A. H. Jennings) ; Porto Bello, 

 Panama, February 10, 1909 (A. H. Jennings) ; Cascajal Eiver, Panama, 

 February 18, 1909 (A. H. Jennings) ; Orosi, Costa Eica, 1100 meters, Novem- 

 ber to January (C. Picado). 



OETHOPODOMYIA FASCIPES (Coquillett). 



Mansonia fascipes Coquillett, Proc. Ent. Soc. Wash., vil, 182, 1905. 

 Mansonia fascipes Dyar & Knab, Joum. N. T. Ent. Soc, xiv, 185, 1906. 

 Mansonia fascipes Coquillett, U. S. Dept. Agr., Bur. Ent., Tech. Ser. No. 11, 25, 1906. 

 Mansonia fascipes Knab, Ent. News, xvili, 153, 1907. 

 Bancroftia fascipes Dyar & Knab, Ent. News, xxi, 264, 1910. 

 Mansonia longipalpis Newstead & Thomas, Ann. Trop. Med. & Par., Iv, 145, 1910. 

 Mansonia fascipes Theobald, Mon. Cullc, v, 451, 1910. 



Thomasina longipalpis Newstead & Carter, Ann. Trop. Med. & Par., iv, 565, 1911. 

 Bancroftia fascipes Howard, Dyar & Knab, Mosq. No. & Centr. Amer. & W. Ind., 

 1, 53, 73; li, pi. 36, fig. 239, pi. 129, fig. 447, 1913. 



Original Description or Mansonia fascipes: 



Distinguished by the coloring of the hind tarsi. Scales of the palpi mixed black 

 and yellow, those on the apex white. Scales of proboscis mixed black and yellow 

 and with several white ones beyond its middle, almost forming a band. Scales of 

 occiput light yellow, those along the sides white, the upright ones chiefly brown. 

 Thorax brown, its scales golden yellow. Abdomen purple-scaled, a patch of pale 

 yellow ones near middle of sides of each segment; venter black-scaled, front angles 

 of the segments whitish-scaled. Femora and tibiae black-scaled and with many 

 patches of light yellow ones, the under side of the hind femora and Inner side of 

 their tibiae chiefly yellow-scaled; front and middle tarsi black-scaled, the first joint 

 with many small patches of yellow ones, both ends of the first three joints and the 

 whole of the last two, yellow-scaled; hind tarsi the same except that the third joint 

 is wholly yellowish-scaled; tarsal claws simple. Wings hyaline, the scales black, 

 yellow, and white, the latter collected into about seven spots, several narrow lateral 

 scales on most of the veins. Length 5 mm. 



Puntarenas, Costa Rica. Four females collected by Mr. P. Knab. 



Type.— No 8296, U. S. National Museum. 



Obioinal Description of Mansonia longipalpis : 



Female. Palpi long. Thorax clothed with golden ochreous scales; posterior 

 region black. Abdomen blackish with lateral patches of creamy-white scales. Legs 

 distinctly speckled; hind tibiae white with a black band. Wings with a double 

 dense black bar at base. 



Length 4-4.5 mm. Length of detached wing 5 mm. 



Head scales. Upright forked, black; narrow curved, pale ochreous with golden 

 reflections; flat, creamy white. 



Palpi. A little more than one-third the length of the proboscis; tips clothed with 

 white scales; the remaining scales mixed creamy white, pale ochreous and blackish. 



Prohoscis with an incomplete central band of creamy-white scales; the scales on 

 the ventral surface of the pale area black, those on the remaining portion of the 

 proboscis blackish with pale ochreous ones Intermixed. 



Thorax with golden ochreous scales intermixed with a few black ones in front; 

 those over the insertion of the wings very long and whitish; region in front of the 

 scutellum semi-nude, blackish-brown with a well defined median group of black 

 scales; pleurae clothed with flat (some almost spindle-shaped) creamy white scales. 



Abdomen. Blackish with a few creamy-white scales at the base of the segments; 

 and lateral sub-triangular patches of creamy-white. Apical margins of all the seg- 

 ments with a fringe of very long golden brown hairs. 



Legs black or brownish-black; conspicuously speckled with bright ochreous 

 yellow; last segment of the anterior tarsi with an inconspicuous band of dull 

 ochreous; mid tarsi; apex of 2nd, basal two-thirds and apex of third, and the whole 

 of the 4th and 5th ochreous white; hind tarsi: apex of 2nd, the whole of the 3rd, 

 base and apex of the 4th and the whole of the 5th ochreous white. 



Wings densely clothed with blackish and creamy white scales; the former pre- 

 dominating; base of costa, sub-costa, and first longitudinal vein, black. Fringe 

 smoky-grey. Outstanding scales more than twice the length of the broad spathuli- 

 form ones, and considerably longer than those in Mansonia titillans. 



The distinguishing features of this insect are the abnormally long palpi, the 

 colour of the hind tarsi and the great length of the outstanding scales of the wing. 



