ANOPHELES QUADRIMACULATTJS 1031 



STibequal, the second pointed, the third distant, the fourth moderate. Mandible 

 quadrangular, convex without; five large branched hairs on dorsal aspect in a 

 line, two smaller ones near them; two pairs of flat appendages near tip, the 

 distal pair feathered ; an outer row of cilia ; terminal dentition of eleven teeth, 

 upper third and fourth produced ; two filaments above, three within ; a square 

 finely dentate process below; a thick process at end of dentition, one at base, 

 between these a row of setae, the central ones longest. Maxilla rounded rec- 

 tangular, the palpus attached by a narrow constriction; numerous short setse 

 and spines on inner aspect; palpus with round projecting base, a dendritic 

 tuft within, five terminal digits and two flattened appendages. Thorax rounded 

 quadrate, about as long as wide; hairs short, consisting of branched hairs, single 

 hairs and tufts, mesothorax sparsely haired. Abdomen stout, anterior segments 

 shorter; long feathered lateral hairs on first three segments, double on first and 

 second, single on third ; posterior hairs small, smooth ; a dorsal series of six 

 pairs of fan-shaped tufts on second to seventh segments (plate 130, fig. 453), the 

 first pair sparse. Air-tube sessile, subquadrate, roundedly angled posteriorly. 

 Lateral plates of eighth segment posteriorly with a series of spines irregularly 

 long and short. 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, slightly constricted centrally, blunt 

 pointed. 



Egg (plate 147, fig. 695 *). — Fusiform, somewhat more pointed at one end 

 than the other, black, lower surface coarsely reticulate, dorsal surface granular ; 

 lateral floats occupying about half of the lateral margins and arcuately pro- 

 duced, dorsally in the middle approaching very close to the median line. 



The larvffi occur in natural collections of water of a more or less permanent 

 nature. They often occur in the same locations with the larvse of Anopheles 

 punctipennis and mixed with them, but generally in much lesser numbers. They 

 are more addicted to permanent stagnant water, such as the edges of sluggish 

 rivers and marshes containing algae, less to springs and running water, and do 

 not occur in temporary ground pools filled by rains. It would appear that the 

 species breeds also in brackish water, although we have no personal observations 

 in confirmation. The female is an eager blood-sucker and readily enters houses. 

 The species hibernates in the female adult state. 



North America east of the Eocky Mountains from Canada to Mexico. 



Center Harbor, New Hampshire, August 1, 1902 (H. G. Dyar) ; Berlin 

 Falls, New Hampshire, August 9, 1868 (F. G. Sanborn) ; West Spring- 

 field, Massachusetts, May 33, 1903 (F. Knab) ; Westfield, Massachusetts, 

 August 33, 1903 (F. Knab) ; Pine Orchard, Connecticut, July 19, 1903 (F. H. 

 Hart) ; Ithaca, New York, June 30, 1903 (0. A. Johannsen) ; Bayside, Long 

 Island, New York, August 14, 1901 (H. C. Weeks) ; BcUport, New York, 

 August 37, 1901 (H. G. Dyar) ; West Fairview, Pennsylvania, August 18, 

 1900 (H. B. Bashore) ; Chesapeake Beach, Maryland, July 4, 1903 (A. Busck) ; 

 Jackson's Island, Maryland, July 39 (H. S. Barber) ; Plummer's Island, 

 Maryland, August 31, 1902 (H. S. Barber) ; Lakeland, Maryland, August 

 8, 1905 (F. C. Pratt) ; Washington, District of Columbia, October 29, 1902 



(Miss Champney) ; St. Elmo, Virginia, May (F. C. Pratt) ; Rives, 



Tennessee, July 27, 1904 (H. S. Barber) ; Agricultural College, Mississippi, 

 November 3, 1903 (G. W. Herrick) ; Belzona, Mississippi, August 5, 1904 

 (H. S. Barber) ; Tutwiler, Mississippi, August 3, 1904 (H. S. Barber) ; 

 Osprey, Florida, July 25, 1901 (J. G. Webb); Oneco, Florida, May 36, 

 1900 (H. A. Gossard); Spring Grove, Florida, Septemfier 30, 1901, (A. 0. 

 Hiscock) ; Fort Myers, Florida, March 18, 1905 (A. N. Caudell) ; Sanford, 

 Florida, March 17, 1905 (Dyar and Caudell) ; Warner's Camp, Lake Okeecho- 

 bee, Florida, March, 1906 (J. H. Egbert) ; Sugar Loaf Beach, liake Okeechobee, 

 Florida (J. H. Egbert) ; Ruddock, Louisiana, May 10, 1901 ( ) ; New 



• The figure shows the dorsal aspect of the egg, not the ventral as stated on the plate. 



