48 MOSQUITOES OF NORTH AMERICA 



Tabemilla, Canal Zone, Panama, in bamboo, July 30, December 22, 1908, asso- 

 ciated with Emmagogus splendms (A. H. Jennings) ; Cucaracha, Canal Zone, 

 Panama, larvae in an artificial receptacle, December 27, 1907 (A. H. Jennings) ; 

 Caldera Island, Porto Bello Bay, Panama, larvae in a galvanized pail left in the 

 edge of a bush well up on the hillside above hotel ; a striking sabethine larva, 

 yellowish white, with black median stripe along the body to near tail, where it 

 ceases and becomes a dead white and noticeably different from the rest of the 

 body; observed larvae feeding on smaller individuals; January 25, 1908 (A. H. 

 Jennings) ; Caldera Island, Porto Bello Bay, Panama, adult caught in the bush, 

 January 4, 1908 (A. H. Jennings) ; lion Hill, Canal Zone, Panama, adults 

 captured (A. Busck) ; Bluefields, Nicaragua, adults captured (W. P. Thorn- 

 ton) ; Zent, Costa Eica, adults captured, September 26, 1905 (F. Knab). 



LAmatus cacophrades is closely allied to lAmatus durJiamii Theobald, and 

 was at first identified as that species. The species may be separated by the 

 difference in the color of the vestiture of the first abdominal segment, care 

 being taken not to confuse the metallic refiection of those scales in cacophrades 

 with the purely golden ones of durhamU. 



LIMATUS METHYSTICUS Dyar & Knab. 

 Limatus methystious Dyar & Knab, Smiths. Misc. Colls., quart, iss., lii, 266, 1909. 



OlUGINAl DeSCEIPTION OP LrMATUS METHYSTICUS : 



Similar to L. cacophrades D. and K. Thorax with five irregular golden patches. 

 Abdomen silvery beneath, the colors separated on the sides in a straight line. Middle 

 legs with the last three tarsals silver white beneath in the female, white all around 

 in the male; hind legs with the last joint silvery white beneath in both sexes. 

 Proboscis of the male straight, slender, swollen at tip. 



Four specimens. Port Limon, Costa Rica, September 28, 1905 (F. Knab). 



Type no. 12131, U. S. N. M. 



Descbbption or Femam; and Maie op Limatus methtsticus (Labva Unknown) : 



Female. — Proboscis moderate, slightly swollen toward tip, labellse small, 

 rounded, vnth outstanding setae; vestiture slightly roughened, black with a 

 bronzy reflection. Palpi small, about one-eighth as long as proboscis, black- 

 scaled, with dense outstanding setae. Clypeus small, rounded triangular, black- 

 ish, slightly pruinose. Antennae rather long, the joints subequal, rugose, 

 coarsely pilose, black; tori subspherical, with a cup-shaped apical excavation, 

 dark brown, silvery pruinose ; hairs of whorls sparse, rather long, black. Eyes 

 broadly separated on vertex, black; a quadrate luteous prominence in front. 

 Occiput small, clothed with flat black scales with a blue and green iridescence, a 

 small golden spot at vertex ; cheeks silvery white ; two setae at vertex. 



Prothoracic lobes large, prominent, well separated dorsally, densely clothed 

 with large, flat, elliptical golden scales ; a row of black setae on margin. Meso- 

 notum densely clothed with brownish-purple scales with blue and coppery re- 

 flections ; a large wedge-shaped dorsal patch of coppery golden to near middle 

 of disk, a lunate patch on each side before root of wing of the same color, con- 

 cavity of spot directed toward the wing-base. Scutellum weakly trilobate, vesti- 

 ture of violet-brown scales, each lobe with a group of black bristles. Postnotum 

 elliptical, prominent, with a high median carina, brown, a tuft of black bristles 

 posteriorly. Pleurae brown, coxae yellowish, clotiied with elliptical, flat silvery- 

 white scales in patches ; a broad area along upper margin of pleurae golden-scale^d. 



Abdomen short, subcylindrical, tip truncate, with many terminal pale 

 bristles; dorsal vestiture black with a brown and submetallic blue reflection; 

 venter silvery-scaled, the colors separated on the sides in a straight line ; first 

 segment clothed above with bronzy-brown scales with a dark-blue reflection and 

 with numerous pale-yellow hairs. 



