26 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.61. 



bud prior to attempting oviposition, but climb about irregularly over 

 the buds, suddenly stopping, grasping one behind them at about the 

 middle with the metathoracic legs, bending down the abdomen and 

 inserting the ovipositor with a plough-like motion. If these ac- 

 tions constitute the entire technic of egg laying, which is uncertain 

 since no eggs were recovered in the examination of the material, 

 the time occupied by the disposition of one egg is extremely short. 

 The author is of the opinion that, as these adults were cage-reared 

 and their emergence probably retarded (infested aments observed 

 April 18, 1913, while adult emergence in cage began April 10, 1914; 

 see remarks), the buds were too advanced to be suitable for ovi- 

 position. 



Larva.— At time of collection both years, 1912 and 1913, the larvae 

 were more or less advanced, so that only the fourth to the sixth 

 stages of the larvae and the prepupae are available for description. 

 Stage IV. 



Size.— Head : 0.67 mm. high by 0.67 mm. broad. Body : 6.5 mm. 

 long. 



Structure.— Similar to stage V. 



Color.— Head: Dark. Body: Pale; markings very faint, more 

 distinct on preepipleurite than on postepipleurite or elsewhere, though 

 scarcely discernible. 

 Stage V. 



Size.— 10 mm. long. Head : 0.87 mm. high by 0.75 mm. wide. 

 Structure. — Similar to stage VI. 

 Color.— Similar to stage VI ; spot markings faint gray. 

 Stage VI. 



Size. — 12 mm. in length. Head : 1.12 mm. high by 1 mm. wide. 

 Structure. — Head: Face view, circular in outline; epistoma and 

 labrum with 4 spines each and epicranium and f rons sparsely haired ; 

 eye disks not elevated, eye slightly convex; antennae of the cone 

 and disk type, cone short and button-like, membrane with disks flat, 

 disks, except the outermost bands, partially surrounding cone, outer- 

 most a free plate, disks 4 in number and not joint-like; maxilla with 

 palpifer and 4-jointed palpus, apical 2 palpi joints quite small; second 

 basal joint without process on inner side, lacinia not especially broad 

 and flat, armed on apical surface with a few (8) setae forming a 

 row ; labium with palpiger and 2- jointed palpus. Thorax : The ter- 

 gum is composed of areas A, B, C, and D ; A, excepting in the pro- 

 thorax, B and C are sparsely haired, A prothorax is bare and con- 

 stricted, D is bare; mesothorax and metathorax with an enlarged 

 alar area sparsely haired and not distinctly separated from 

 preepipleurite; pleurum; preepipleurite large and moderately 

 haired; postepipleurite of moderate or large size and bare; prehy- 



