OF WASHINGTON. 481 



highly triangular lower part and small triangular apical portion. 

 Mouth slightly pointed ; antennae very small ; ocelli not seen. 

 Joints 2 and 3 wide, 4 smaller, 5 to 13 about equal, 14 broad, 

 rounded, with a ventral plate notched at the end, the two lobes 

 rounded and slightly upcurved. No thoracic feet, the venter of 

 joints 2 to 4 flat, roughened, with paired circular areas represent 

 ing the feet. Abdomen without feet, the subventral folds promi 

 nent ; joints 7 to 10 with median elliptical white areas, 12 with a 

 smaller paired but similar area and a longitudinally elliptical one 

 on joint 13. Skin smooth, dull, pale leaden, brownish on thorax 

 and ventral plate. Body flattened dorsally, finely shagreened ; 

 no shields. Dorsal tubercles obsolete, represented by obscure 

 impressed areas ; lateral hairs rather distinct, pale. The larva 

 lives in the mine with the ventral surface uppermost. 



Coptodisca sp. Mines very similar to the preceding on the 

 upper side of the leaves of Myrica cerifera. The cases are cut 

 out in the same way. Mr. Busck did not determine the insect 

 specifically. 



Bucculatrix ivella Busck. The larva at first mines the leaves 

 of fva frutescens, a linear, gradually widening mine with a black 

 central stripe of frass except at the tip. The mine starts at the 

 petiole and runs nearly to the tip of the leaf, slightly flexuous. 

 The larva conies out at the end and spins a delicate, circular web 

 with a central semicircular hole in it, in which it rests curled. 

 Larva a little flattened, segments slightly rnoniliform, subequal, 

 scarcely tapering. Pale yellow with a green tint, not shining. 

 It sheds its skin in this web, leaves it and becomes free-feeding 

 on the young leaves. Slender, somewhat rnoniliform, a little de 

 pressed at the ends. Whitish translucent, the food green ; 

 cf glands orange. Tubercles large, white, setae black. Tuber 

 cle i dorsad to ii, iv and v very remote, iv dorsad, suggesting 

 the Noctuid type excepting that it is very far posterior of the 

 spiracle, vi on the lower subventral fold. On thorax ia and v 

 absent ; iia -|- iib. Cervical shield brown dotted, with black 

 setae. Head pale, mouth pointed, eye black, clypeus high. Spins 

 a ribbed white cocoon on the stem or leaves of the plant. 



Bedellia minor Busck. The larva mines in the leaves of the 

 " morning glory " (Ipomoea sp.). The early mine is a slender 

 irregularly sinuate line under the upper epidermis gradually 

 widening to the end where the larva emerges to begin blotches 

 elsewhere. The frass is contained as a long, dotted, central line. 

 Later there is a slight open web on the back of the leaf, the 

 larvae feeding as miners but ejecting the frass by a hole. A large 

 blotch is formed, nearly symmetrical, sometimes lobed. 



Head broad, flat, half retracted in joint 2, shining greenish with a brown 

 tint, mouth brown. Cervical shield quadrate, rugose, shining greenish. 



