992 MOSQUITOES OF NOKTH AMEKICA 



just before middle involving base of second vein, toward apex a still larger spot 

 involving first vein and both branches of second, separated from a small sub- 

 apical and larger apical spot by streaks of white scales ; outside of these spots 

 the veins are irregularly mottled with white, the white in small spots distributed 

 as follows : three on stem of second vein, the third one at base of fork, each branch 

 with a spot toward apex ; third vein with a spot near base and another toward 

 apex ; fourth vein with several spots on the stem and two on each fork ; upper fork 

 of fifth vein with three spots ; sixth vein with five spots ; the outermost spots on 

 veins 2, 3 and 4 form the outer limit of the largest black scale-patch. Halteres 

 pale, covered with small white scales, the disk of knob black and bare. 



Legs long and slender, black, marked with yellowish white; femora, tibise 

 and first joint of tarsi with a series of small yellowish white rings and spots, the 

 femora pale beneath to near apices; knees and tips of tibiae yellowish white; 

 front tarsi with basal and apical rings on the four proximal joints, the fifth 

 wholly black-scaled ; mid tarsi similarly ornamented, the rings much narrower ; 

 hind tarsi with narrow apical rings on the four proximal joints, the last joint 

 wholly black. Claw formula, 0.0-0.0-0.0. 



Length : Body about 4.5 mm. ; wing 4 mm. 



The larva is unknown to us. We quote the following description from Doctor 

 Peryassu's work (Os Culic. do Brazil, 333, 1908) : 



" The larva is dark-colored with the third and eighth abdominal segments 

 yellowish white. 



" Head rounded. Antennae long, conical, with two very long terminal spines, 

 with slender point; on the internal part are two spines and a tuft formed of 

 hairs and at the extremity a long hair. Labial plate triangular. Mouth brushes 

 dense and formed of hairs of ordinary length. Keck with a black rim at the 

 posterior opening. Thorax yellowish white in front, with long branched setae. 



"Abdomen with the segments large and detached, dark brownish in color; 

 except the third and eighth which are yellowish white. The setae of the three 

 first segments are long and branched (like a palm-leaf), those of the other 

 segments are short but also branched. Anal siphon with a large tuft composed 

 of long hairs, similar to what is observed in Chagasia fajardoi. Anal leaflets 

 short and with the apices rounded." 



The hair-tuft in C. fijardoi arises from the median anterior margin of the 

 air-tube, almost between the pair of spiracles. 



Peryassti dissected 153 mature eggs from a female; he gives the following 

 descriptive notes on the eggs {I. c. 331-333) : 



" The eggs are deposited singly in small numbers and do not form characteris- 

 tic groups. Eggs were mailed from Xerem to Manguinhos, May 30 '07, placed 

 in water May 33 '07 and hatched three days later. The eggs are very resistant 

 to desiccation. 



" The eggs are of elongate ellipsoidal form with the two poles greatly rounded. 



" Length .48 mm. ; diameter .17 mm. 



" When laid they are pearl-white, later grey and dark grey. They are com- 

 pletely covered with white air-tubes arranged perpendicularly to the body of 

 the egg, forming salient margins broader in the median part. At each of the 

 poles there is a small crown composed of tubes like the others but smaller. 



" When hatching they split open longitudinally." 



Forested regions of South America and island of Trinidad. 



Chaquanas, Trinidad, March, 1914 (I. P. Lasalle) ; Itaguahy, State of Rio 

 de Janeiro, Brazil (Inst. Oswaldo Cruz) . Reported also from Sao Paulo, Brazil 

 (Theobald), States of Minas Geraes and Rio de Janeiro, Brazil (Peryassu) ; 

 Jamaica (Theobald). 



We have a single specimen of Anopheles maculipes from Trinidad, where it is 

 evidently rare, and another from Brazil, this latter through the kindness of the 

 Institute Oswaldo Cruz. Prom these specimens it appears that the species is 

 easily distinguishable from the similarly ornamented species occurring within 



