Dec, 1907] Dyar&Knab: Mosquitoes from Canal Zone. 199 



a large black patch margined with white on the costa near the middle, more basaily 

 a smaller costal patch and towards the apex another large one, all margined with 

 white, scaling of the veins in patches of black and white scales, the third vein with a 

 small black spot at the base, the sixth vein with many black dots and dashes. 

 Length, 4.5 mm. 



$ . — Palpi with the apical portion clubbed, clothed with yellow scales with 

 golden luster, a narrow dark ring- at the middle of the club, the shaft ringed with 

 dull ochreous at the apex and at the constriction and broadly marked with the same 

 color on the apical portion ; antennre pale brown and ferruginous with silky luster. 

 Length, 4.5 mm. 



Seven specimens, Chagres River, Panama (August Busck, collec- 

 tor) ; Tabernilla, Canal Zone, Panama (August Busck, collector) ; 

 Gatun, Canal Zone, Panama (A. H. Jennings, collector). 



Type. — No. 10877, U. S. National Museum. 



There is some variation in the banding of the hind tarsi. In two 

 specimens the penultimate and apical white rings of the second joint 

 are united ; in one the apical white ring of the first joint is divided by 

 a black bar, in another the penultimate ring is so divided, while in a 

 third, the apical, penultimate, antepenultimate and another white ring 

 are so divided, this specimen having eleven white rings on this joint 

 instead of seven as in the type. 



Mansonia phyllozoa, new species. 



J'. — Proboscis moderately long and stout, slightly swollen towards the apex, 

 black scaled, a yellow-white ring behind the middle; palpi nearly as long as the 

 proboscis, black scaled with two yellow-white rings, the apices brilliantly silver 

 scaled ; mesonotum very deep brown with four longitudinal lines of silvery-white 

 scales, two of these lines are marginal and extend the entire length of the mesonotum, 

 the other two submedian and begin behind the middle and extend over the scutellum 

 where they unite upon its hind margin ; the lateral stripes extend along the sides of 

 the scutellum ; metanotum with a median carina, dark brown. Abdomen dark scaled 

 with lateral patches of whitish scales. Legs with the femora predominatingly yellow 

 scaled, the apices black ; tibiae yellowish-white scaled, ringed with black, the rings 

 becoming larger towards the apices, first tarsal joints black, maculate with white ; on 

 'the hind legs the apices broadly white, the second tarsal joint white at the apex and 

 nearly half its base, the third joint broadly white at the base, minutely at the apex, 

 the fourth more narrowly white at the base, the fifth entirely white-scaled ; fore and 

 mid legs narrowly white marked. Wings with the veins mostly black scaled ; four 

 conspicuous yellowish-white elongated costal spots one of these basal and very long, 

 the others shorter, all involving the first vein. Length, 3 mm. 



One specimen, Tabernilla, Canal Zone, Panama (August Busck, 

 collector), bred from larvae in the leaves of Bromelias. 

 Ty/>e. — No. 10864, U. S. National Museum. 



