1006 MOSQUITOES OF NOETH AMERICA 



457). Air-tube sessile, subquadrate, roundedly angled posteriorly. Lateral 

 plates of eighth segment posteriorly with a series of spines, irregularly alter- 

 nating long and short ; the longer of the short ones half as long as the long ones, 

 the shorter ones about one-third. Anal segment about as long as wide, with 

 a small dorsal plate ; dorsal brush a long and a short tuft on each side ; a single 

 long lateral hair below the plate ; ventral brush well developed, of long branched 

 tufts ; anal gills moderate, about as long as the segment, bluntly pointed. 



Mr Busck found the larvae in water in hollow trees, open bamboo-joints, and 

 once in a palm-leaf lying on the ground and holding rain-water, and he con- 

 siders the species as one addicted to tree-holes. Mr. Knab got one larva in a 

 pool in a stream-bed. Mr. Jennings found them in a small pool beside a stream 

 filled with leaves and no algae present, in water in a hole in a rock beside a stream 

 and in pools among rocks beside a stream and from water in a hole in a tree, in 

 all once in a tree-hole and seven times from stream-pools. The larvse are there- 

 fore not exclusively addicted to tree-holes, but inhabit also pools beside streams, 

 especially those in rocks. It should be remembered in connection with these 

 data that water-bearing tree-holes are much more diflfieult to locate than water 

 upon the ground. The adults presumably bite, as we have captured specimens, 

 although most of those before us are bred. 



Tropical America, from Mexico to southern Brazil. 



C6rdoba, Mexico, Jime 13, 1905 (P. Knab) ; Aguna, Guatemala (G. Eisen) ; 

 Eio Chagres, Panama, June 7, 1907 (A. Busck) ; Tabernilla, Canal Zone, 

 Panama, July 18, 1907 (A. Busck) ; Colon, Panama (A. I. Kendall) ; Caldera 

 Island, Porto Bello Bay, Panama, January 34, May 39, 1908 (A. H. Jennings) ; 

 Platanal, Trinidad, West Indies, September 19, 1908 (P. W. TJrich) . Eeported 

 also from Oliveira, State of Minas Geraes, Brazil (A. Neiva). 



Anopheles eiseni is the only species in our region with this peculiar type of 

 leg ornamentation. Anopheles tibiamaculata Neiva is the same as eiseni, ac- 

 cording to Dr. Neiva who has examined our material. 



ANOPHELES GRABHAMII Theobald. 



Anopheles grabhamii Theobald, Men. Cullc, i, 205, 1901. 

 Cyeloleppteron grabhamii Theobald, Men. Cullc, ii, 312, 1901. 

 Cycloleppteron gratliamii Theobald, Journ. Trop. Med., v, 182, 1902. 

 Cyeloleppteron grabhamii Giles, Handb. Gnats or Mosq., 2 ed., 332, 1902. 

 Cycloleppteron grabhamii Taylor, Rev. de Med. Trop., Iv, 150, 160, 166, 172, 1903. 

 Cyeloleppteron grabhamii Theobald, Mon. Culic, ill, 56, 1903. 

 Cycloleppteron grabhamii Giles, Rev. Anophelinae, 20, 1904. 

 Cycloleppteron grabhamii Pazos, Bull. Soc. Ent. France, 1904, 134, 1904. 

 Cyclolepidopteron grabhami Blanchard, Les Moustiques, 185, 1905. 

 Cycloleppteron grabhamii Theobald, Gen. Ins., Dipt, 26 fasc, 8, 1905. 

 Cycloleppteron grabhamii Theobald, Mosq. or Culic. of Jamaica, 9, 17, 1905. 

 Cycloleppteron grabhamii Felt, Bull. 97, N. Y. State Mus., 470, 1905. 

 Anopheles grabhamii Dyar & Knab, Journ. N. Y. Ent. Soc, xiv, 176, 1906. 

 Cycloleppteron grabhamii Coquillett, U. S. Dept. Agr., Bur. Ent., Tech. Ser. 11, 13, 



1906. 

 Cycloleppteron grabhamii Theobald, Mon. Culic, Iv, 55, 1907. 

 Anopheles grabhamii Pazos, San. y Benef., i, 45, 181, 1909. 

 Cycloleppteron grabhamii Prout, Ann. Trop. Med. & Paras., iii, 487, 1909. 

 Cycloleppteron grabhamii Theobald, Mon. Culic, v, 34, 1910. 

 Anopheles grabhamii Knab, Amer. Journ. Trop. Dis. & Prev. Med., i, 36, 1913. 



Obiginai, Description or Anopheles oeabhamii: 



2- Head dark brown, with black upright forked scales behind and at the sides, 

 a patch of grey ones in the middle of the head, a few white ones projecting in front, 

 and a long tuft of white hairs spreading outwards; eyes metallic coppery; proboscis 

 long and thin, brown; palpi brown, bright brown at the swollen end, with prominent 

 scales at the base; basal joint of antennae dark brown. 



Thorax silvery-grey, mottled with bright chestnut-brown, with two dark brown 

 eye-like patches on each side towards the posterior half of the mesonotum, and a 

 dark central line in front; a lateral tuft of dark, broadish scales on each side in 

 front, and a patch of hair-like creamy ones in the middle, projecting over the neck; 

 the whole mesonotum covered with scattered golden, curved, hair like scales; scu- 

 tellum greyish at the sides, brown in the centre; metanotum yellowish-brown In 



