TWENTY-FIRST ANNUAL MEETING. 



Ill 



spines, and transverse row of eight tubercles on anterior edge of first segment, and 

 four on posterior and lateral edge of last segment, shining black; dorsal and stig- 

 matal area, dark reddish brown, shading into the dull reddish of the subdorsal and 

 substigmatal areas; venter dark brown, except narrow line at center, including 

 thoracic feet and inner surfaces of prolegs; stigmata, large, velvety black, with nar- 

 row yellowish border. 



Descriptions of pupce: Female — Length, 35 mm.; width, 10 mm.; apical spine 

 two-pronged, 3.5 mm. long; four prominent sharpened tubercles at the anterior ex- 

 tremity of body; extremities, and margins of the 5th, 6th and 7th segments armed 

 with many sharp points; color, very dark reddish brown, almost black; general form 

 as in Anisota rubicunda. Male — Length, 30 mm.; width, 8 to 9 mm.; apical spine, 

 3 mm.; other features similar to those of female. 



Parasites : Immature larvae were not infrequently found swollen posteriorly and 

 attached to leaves or twigs by whitish silk. The swollen appearance was caused by 

 the cocoon of an ichneumon parasite, spun within the body of the host larva. 

 During the month of September, parasitic flies (i to J inch long, black, with red 

 and white-marked limbs) escaped through circular openings cut near one extremity 

 of the cocoon. 



CALLIMORPUA SUFFUSA SMITH. 



a, moth; e, pupa, side view, and tip of abdomen magnified; rf, adult larva; b and c, middle segment 

 of same from above, and from the side enlarged; /, egg, much magnified; figures a, e, and rf, natural 

 size, the others variously enlarged. 



Early in April last, before the appearance of leaves, hairy lepidopterous larvae f 

 inch long, of a general dark color, striped longitudinally with yellow and white, were 

 noted in moderate numbers crawling about the trunks and branches of ash trees on 

 the Agricultural College farm. Later these larvae were observed feeding, usually 

 from the lower surface, on the young leaves of the ash. 



A number collected May 1st completed larval growth May 17th, attaining a length 

 of li inches, aiad formed slight silken cocoons, exteriorly covered with particles of 

 earth, at the surface of the soil beneath leaves, etc., in breeding-cage. 



Pupffi were found May 31. from which the above-named moth was obtained June 

 27. 



In June and July of the previous year, large numbers of these handsome insects 

 were collected from the grass and weeds about and in the grove in question. A visit 

 to the grove July 1, '88, was rewarded by the capture of but a single moth — a gravid 

 female. This experience illustrates the often-observed fact in entomology, that the 

 abundance of an insect in any locality one season is of little value in estimating the 

 probable numbers for the next. Careful search at this time failed to show either 

 eggs or larvfe on the trees or grass in the vicinity. From the moth captured, about 

 100 yellowish spherical eggs in two closely-placed, but not crowded masses, were 



