BLUEBERRY INSECTS IN MAINE. 269 



Adult female. (Description by Doctor Felt). Length 1.75 mm. An- 

 tennae dark brown, the 2 basal segments yellowish; 16-20 segments, the 

 fifth with a length about three-fourths its diameter, the terminal segment 

 globose. Palpi : yellowish, the first segment short, sub-quadrate, the 

 second with a length twice the first, the third one-half longer, more 

 slender, the fourth about as long as the third, more slender. Mesono- 

 tum dark brown. Scutellum, postscutellum and abdomen dark brown, 

 the segments of the latter narrowly margined posteriorly with yellowish 

 white, the ovipositor nearly as long as the body, fuscous yellowish, the 

 terminal lobes with a length 4 times the width and with a group of 

 heavy, chitinous hooks. Halteres and legs fuscous yellowish, otherwise 

 nearly as in male. Type Cecid a 2641 in the New York State Museum, 

 Albany, N. Y. 



Egg. Shining white, oval, comparatively long and slender, slightly 

 more pointed at one end. Length 0.20 mm. See figure 56 B. 



Larva. (Description by Doctor Felt). Length 2.1-2.5 nim., orange 

 pink, moderately stout, tapering at both extremities, the skin coarsely 

 shagreened; head moderately stout, broad apically, the antennae diver- 

 gent, with a length 3 times the diameter and apparently uniarticulate ; 

 breast-bone distinct, the shaft stout, the apex broadly bidentate; termi- 

 nal segment broadly rounded, almost subtruncate and with 4 sublateral 

 pairs of stout, tapering, spinose processes. See figure 56 A. 



Pupa. Thorax and abdomen pink; head, eye and appendages colorless 

 and transparent. Thoracic segments closely fused together; wings 

 appressed to body, folded over to ventral side and partly covering the 

 legs; the base of the antenna forms a projection on the anterior end; 

 antenna extends back over the eyes bordering the lower margin of the 

 wing; legs closely appressed to body, with the tips free. A dark brown 

 spine on the suture between head and thorax. A brown spiracular 

 opening above the eye from which a long flexuous seta projects. See 

 figure 56 C. 



Fig. 56. Lasioptera fructuaria Felt sp. n. A. breast bone of larva 

 about 100 times natural size; B. egg about 100 times natural size; C. 

 pupa about 20 times natural size. 



