274 A. T. STANTON AND H. P. HACKER. 



Wings. Tlie distribution of spotting oi\ the wing field closely resembles that of 

 Anopheles albolaeniatus. Theo. (Mon. Ciil. iii, Plate 1). The wing costa is dark- 

 scaled, with one wh.ite spot at the junction of the middle and outer thirds, and one at 

 the apex involving the 1st and 2nd long veins and the wine: fiinge opposite the 

 termination of the 3rd long vein. 



Legs. Black-scaled, ui\speckled, with ligliter banding as follows : on the front 

 and middle paii- narrow yellow bands at the tarsal joints, segment 5 clad with a mixture 

 of yellow-brown and black scales ; on the hind legs narrow yellowish bands at base 

 and a])ex of tibia and tarsal segments 1, 2, 3 and 4, segment 5 with vellowish scales 



(%-l)- 



Abdomen clad with long bro\\n hairs only. 



^. The markings of the male are identical with those of the female, except the 

 wing markings, which differ as in other species of this group. The genital lobes carry 

 a few scales on tiieir outer surface. 



Genitalia : Claspette spines 2, arising from prominence : inner short, recurved ; 

 outer long, tapering ; accessory hairs present. A well developed internal spine 

 about half way down the clasper. Harpagones blended ; each bilobed. Ventral 

 lobe with spatula-like club ; inner lobe with two long hairs, one about the same 

 ](Migth as the club, the other about half this length. The whole lobe is densely 

 chitinised. smooth and rounded. Theca long, cylindrical, tapering, the apex recurved 

 ventrally ; lip carrying four or five small leaflets. Ninth segment well developed. 

 A'eiitral )U'ocesses long, stout and chibbed : anal lobe extending about half-way down 

 the clasper. 



These characters resemble very closely those of A. sinensis, Wied. (Christophers, 

 Ind. .lour. Med. Rs s. iii, p. 381), U)1G). Th(> form of the inner claspette spine is 

 different. 

 Mahne Larra. 



Average length at maturity 5"2-'3 mm. The general ccilour is dark, with a light 

 yellowish band on abdominal segment 3. 



Head. In form and relative position the clypeal hairs most nearly resemble those 

 of Anopheles nmbrosus {vide this Bulletin, vi, p. 171, 1915). The inner anterior 

 clypeal hairs are placed close together and are long and simple. The outer anterior 

 clypeal hairs are about half the length of the inner and are branched, six to eight 

 divisions ai'ising from a single stem. The posterior clypeal hairs are widely separated 

 from each other, short, and branched near the base int\) three or four divisions. The 

 occipital hairs are long and carry six to eight branches. 



A'< in other species of this gi^oiip the antenna carries a long branched hair on it> 

 imier surface. 



Thorax. The sub-median anterior thoracic hairs resemble those of sinensis and 

 iDHhrosiis {vide this Bulletin, vi, p. IGl, 1915) ; the innermost of the group is divided 

 near the end into five or six short branches. Theri^ i> a rudimentary stellate tuft on 

 the thorax. 



Abdomen. Fully developed stellate tufts are borne on the third to seventh segments. 

 On the first and second segments there are rudimentary stellate tufts. The leaflets 

 of the stellate tufts of the mid-abdominal segments are lanceolate in hum with serrated 

 edge; their average lencrth is 0"0G4 mm.' 



