22 REPORT OF SEARCH FOR ENEMIES OF CITRUS WHITE FLY. 



club slightly loiager than, middle segment, basal segment again slightly shorter. Fore- 

 wii^s broad, with moderately long bordering cilia; disc uniformly covered with 

 minute cilia; stigmal vein rounded below, its anterior margin for a time parallel with 

 costa; marginal vein faintly indicated, its base joining stigmal in an acute angle. (In 

 this respect this species differs from all other known species of its genus.) General 

 color light yellow; all legs pallid; eyes dark; ocelli coral-red; antennal club dusky; 

 wings hyaline, wing veins dusky. 



Male.— 01 practically the same size and structure as the female, but differing in 

 color. The coloration closely resembles that of Aspidiotiphagus dtrinus, to which it 

 bears a superficial resemblance; pronotum brownish; mesonotum orange yellow; 

 metanotima and epimerum brownish; abdomen dark brown except at base and tip 

 where it is lighter; hind femora dusky at tips; wing veins distinctly fuscous, consid- 

 erably darker than in female. 



Conclusions Drawn from Situation at Saharanpue and Lahore. 



Our searches at Saharanpur and Lahore had resulted not only in 

 the discovery of the citrus wliite fly, but, what was especially impor- 

 tant, the discovery that it was being attacked by both a predatory- 

 enemy and a true internal parasite. It was at once evident that our 

 next duty lay in attempting to collect and transport to Florida living 

 material of these beneficial insects. Unfortunately the season at this 

 time was so well advanced that practically all insect life was in a dor- 

 mant condition, so that the collecting of Hving material during the 

 next few months was impossible. Rather than remain inactive in 

 upper India until the following spring, it seemed best to continue the 

 search throughout India and into China with the hope of acquiring a 

 ' broad grasp of the wliite-fly situation throughout the Orient. Hav- 

 ing the situation thus in hand, we would know whether or not there 

 were other regions equally prolific in natural enemies of the white fly. 

 Such information would be of great value to aU future work in this 

 particular field. 



Aleyrodes citri in India. 



With the exception of the lower part of the peninsula practically 

 aU of India suitable to the growhig of citrus fruit trees has been 

 searched. The writer has exammed orange trees at Peshawur, the 

 frontier city in the northwest near the entrance to the KDiyber Pass; 

 along the lower elevations of the Himalayas (PL VI, fig. 2) at Dehra- 

 dun; in the United Provinces; in Sikkim below Thibet; and eastward 

 mto the Khasia Hills of Assam (PI. VI, fig. 1) . In the west the writer 

 has been among orange trees at Poona, m the Bombay Presidency, and 

 eastward at Nagpur, in the Central Province. Much of the interven- 

 ing territory between these outposts of travel has been covered. 



As a result of these travels it can be stated that in all places visited 

 in India, in which oranges were grown, infestations of the white fly 

 were to be found. This is equivalent to stating that this aleyrodid 



