goo MOSQUITOES OF NORTH AMERICA 



e .t. iu ;. ^r^,r,PTihifion ffiven bv Theobald (Mon. Culic, iii, 360, fig. 137) 

 '^ '^^^^^^ sleadinTas^^^ 7ell-defined pattern. Such is not the case : 



Xn far^t elriin,^^^^ silvery scales very diffused but their distribution 

 ?8 also very different. We have figured the mental plate of the larva m this 

 i. vnl 9 Til 142 fiff 614, under the name Psorophora tndoctum. Dyar and 

 r.^h I? firlt applied the specific name scJiola^ticus, furnished them by Coquil- 

 l^tt I th^sspec^ef It developed later that this determination resulted through 

 an error in the association of adults and larv, the adults provmg to be Culex 

 nmilis while the larva were those of this species. Coquillett added to the con- 

 fusion 'by referrino- to the genus Grahhamia the wrongly associated adults of 

 Culex (U. S. Dept. Agr., Bur. Ent., Tech. Ser. 11, 21, 1906). 



PSOROPHORA PYG^MA (Theobald). 



Grahhamia pygmwa Theobald, Mon. Culic, iii, 245, 1903. 



Culex nanus Coquillett, Can. Ent., xxxv, 256 190o 



Cuiex nanus Pazos, Bull. Soc. Ent. France. 134, 1904. 



Tceniorhynchus antigme Giles, Journ. Trop. Med., vn, 382, 384, 1904. 



Ciiiex nanws Coffin, in Shattuck, The Bahama Ids., 284, 1905. o-,.oak 



arabhamia pygmwa Theobald and Grahham, Mosq. or Culic. of Jamaica, ol, 1905. 



Grahhamia pygmwa Blanchard, Les Moust, 397, 1905. 



Culex nanus Blanchard, Les Moust, 629, 1905. 



Tceniorhynchus antiquce Blanchard, Les. Moust., 631, 1905. 



Janthinosoma pygmwa Dyar & Knab, Proc. Biol. Soc. Wash., xix, 162, 1906. 



Grahhamia pygmccus Coquillett (in part), U. S. Dept. Agr., Bur. Ent, Tech. Ser. 11, 



21, 1906. 

 Grahhamia pygmara Theobald, Mon. Culic, iv, 289, 1907. 

 Aedes pygmeus Pazos, San. y Ben., ii, 47, 318, 1909. 

 Grahhamia vygma:a Theobald, Mon. Culic, v, 281, 1910. 



Original Description of Gkabiiamia pygm.^ca : 



Differs from the former [Grahhamia jamaicensis] in the following characters: 

 Thorax mottled with dark brown, bright brown, and creamy scales, the dark brown 

 forming more or less distinct spots and a median line in front; the metatarsi show 

 no traces of median banding; there is no trace of the small black spot at the base of 

 the third long vein, and the wing scales are shorter and rather broader, and the 

 specimens are about half the size of Jamaicensis. The apical bands on the abdomen 

 are as in the former species, but are much whiter. 



The wing is as follows: Fork-cells short, the first sub-marginal a little longer 

 and narrower than the second posterior; base of the first sub-marginal cell about 

 level with the base of the second posterior cell; stem of the first sub-marginal cell 

 a little more than half the length of the cell; stem of the second posterior nearly 

 two-thirds the length of the cell; posterior cross-vein about its own length behind 

 the mid cross-vein; elongate lateral scales on the apex of the first, the third, fourth, 

 and fifth veins; broad ones elsewhere. 



Habitat. Antigua (Forrest); and Jamaica (Grabham). 



Time of capture. August (Forrest); March (Grabham). 



Observations. Described from a series sent by Mr. Forrest. The rather short and 

 broad wing scales on the branches of the second fork-cell and its stem are shown 

 in Plate XI. 



Original Description of Culex nanus : 



Female. Near jamaicensis, but much smaller, the light-coloured scales on the 

 tibiae not collected into spots, mesonotum without round spots of yellowish scales, 

 etc. Black, the base of the antennae except the first joint, a band at middle of 

 proboscis, the halteres and bases of femora yellow; scales and hairs of palpi black, 

 appressed scales of occiput golden yellow, the upright ones black, scales of meso- 

 notum golden yellow, those of the abdomen black and with a broad crossband of 

 whitish ones on the hind margin of each segment, the last two segments nearly 

 wholly whitish scaled; scales of venter white, those of femora and tlbise mixed black 

 and whitish, the latter forming a ring near three-fourths the length of each femur, 

 scales of tarsi black, those at narrow bases of the joints whitish, tarsal claws simple; 

 wings hyaline, the scales mixed black and white, the black ones not collected into 

 spots, lateral scales of the anterior veins narrowly lanceolate, those of the other veins 



