590 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 



ing from the occiput to the labrum ; also a lateral, rather paler, band extending to 

 the black eyes. Body speckled irregularly, especially on the sides, with brown. A 

 dark dorsal vascular line, inclosed by two slender fine yellowish lines. Length, 17™™. 



74. Large nematus ? larva. 



This false caterpillar occurred frequently on the willow at Bruns- 

 wick, Me., late in August. 



Larva.— Eight pairs of abdominal legs. Body rather thick, long, not usually curled, 

 up much at the extremity, with no markings, warts, or spines. Head small, round, 

 amber, greenish in front, eyes distinct and black. Body wrinkled, much as in Cim- 

 bex, which it approaches in size, pale green throughout ; with a dorsal pair of lines 

 composed of obscure ditfuse irregular faint yellowish patches on each side of the 

 vascular line ; and a similar lateral line, also obscure. Length, 26™™. 



75. Chrysomela bigabyana Kirby. 



Mr. Coquillett has reared this leaf-beetle from the willow, on which it 

 feeds. He found in Illinois two larvfe August 13, which shortly after- 

 wards pupated, the beetles appearing September 5. The species was 

 determined by Dr. Horn. (Can. Ent., xv,p. 22.) It is not uncommon on 

 willows in Maine late in June. 



iarra.— Body white, tinged with yellow ; spiracles black with a white dot in the 

 center of each ; on each side of segments 2 and 3 is a curved black dash, the curve 

 downwards ; cervical shield concolorous. marked with a blackish spot in the middle 

 of et^ch outer edge ; head yellowish brown, ocelli black, in two clusters. Length, 

 10°'™. 



The beetle. — Body green, palpi, antennse, and legs rufous; anterior margiuand sides of 

 the prothorax reddish ; elytra pale red withasutural stripe, a humeral broken bilobed 

 spot, and several dots black or dark green. Color and sculpture of the body like 

 those of the preceding species, from which C. bigsbyana ditiers principally in having 

 the sides and anterior margin of the prothorax reddish yellow ; the eljtra are of the 

 same color, but the suture itself, especially at the base, a stripe parallel to it, a large 

 humeral bilobed spot, the interior lobe of which is obtusangular or broken, and 

 several irregular dots and spots on the elytra are black-gieeu. Length of the body 

 4 lines. (Kirby.) 



76. Chrysomela spirew Say. 



I have found this species on willows in Maine late in June. 



The beetle.— Read, dark green, tinged with brassy ; antennae and palpi rufous ; 

 thorax dark green, tinged with brassy ; elytra pale yellow, sometimes tinged with 

 rufous ; each with about seventeen unequal small green spots ; a larger lunate one 

 originating on the humerus ; a common green sutural line, which sends off a lateral 

 short branch on each side near the base ; beneath blackish green ; feet rufous. 

 Length, i inch. 



It is very closely allied to the C. philadelphica Fabr., but is smaller, and the sutural 

 line is always common, whereas in the ^jftiZadeZp/iica there is a slender subsutural line 

 on each elytron always insulated from the suture throughout its whole length. 



77. Chrysomela philadelphica Linn. 



While this species feeds on the pine, according to Fitch, he also has 

 observed it commonly on the willow. 



The beetle. — A very convex broad-oval beetle about 0.30 long, of a dark bottle- 

 green color, with white wing-covers sometimes tinged with yellow and having on 



