269 



9tli, other larv£e on other plants in various stages, but most nearly grown. 

 They eat the upper surface of the leaf in large patches, leaving the veins 

 and lower cuticle untouched. Legs twenty-two, viz., six true le^s and six- 

 teen prolegs. Body soft, semitransparent green above, pale (yellowish) at 

 sides and below, transversely wrinkled on back, which is also rouo-h with 

 little sharp asperities. On the anterior edge of the first ring are two little 

 trifid tubercles. The head is round, pale yellow, with a black eye-l:ke spot 

 on each side. Length rathejr over four tenths of an inch. When about to 

 be transformed, they become entirely light yellowish, and lose their semi- 

 transparent appearance. This occurred Avith some July 10th. 



Allantus sambuci Hai-r., Catal. [Maerophya tibiata Norton.] 



Found on the elder, June 12, 1828. Length about one inch. Segments 

 twelve, besides the head. Legs twenty-two. Pale yellow, transversely 

 wrinkled, and covered above with a primrose white coat. Vertex with a 

 quadrate, blackish spot; cheeks each with a circular dark spot; mouth dark 

 or blackish; true legs each with two piceous spots near the coxa3. Each 

 of the first three segments of the body, and also the last segment, with one 

 black dot on each side ; the nine remaining, intermediate segments, each with 

 two black lateral dots. Curls around when disturbed. Young larvaj not so 

 hoary, and segments not spotted. 



Cocoon in the earth, June 15, 1828. Winged insects, $ and ?, in abun- 

 dance on the elders, June 1, 1829 — 1831. 



Sept. 15, 1827. On Cornus sericea, covered with a thick, white sub- 

 stance. In its last state this white~ substance disappears, and it becomes 

 pale yellow, with a black head, and four rows of black spots, quadrate, two 

 dorsal and one lateral. Prolegs sixteen, corneous legs six ^^^ 22. Forms a 

 cocoon. 



Sept. 10, 1849. Lives in swarms on the under side of the leaves; when 

 at rest curled spirally, head outwards, tail inwards and upwards. Length 

 of largest one inch and one tenth. Legs twenty-two; none to fourth seo-- 

 ment, the anal pair shortest and feeble. Body yellow, covered above with 

 a white efflorescence, and transversely wrinkled between the sections. 

 Head black, except the lip and mandibles, which are yellowish. A black 

 spot on tip of anal clappet. Body beneath citron yellow. Immaculate and 

 bare. Curls the tail from time to time in walking and resting, so as to hold 

 on the better. Spiracles eighteen, none on second, third and twelfth seg- 

 ments. 



Sept. 11, 1849. Three of these larvae had moulted, and lost also their 

 white efflorescence, and were greatly reduced in size; length only between 

 seven and eight tenths of an inch. Head black ; body yellow, spotted above 

 with black in four dorsal rows, the two middle rows of quadrate black spots, 



