APPENDIX. 



329 



pear-shaped, more like the earlier series, and about like the fourth series in 

 «ize. The honey tubes are of moderate length, taper to near the tip, 

 and flare a little at the point. The antennae are 

 six-jointed, and have an obvious sense pit at the 

 tip of the fifth segment. August 31, all the breed- 

 ing forms were of this type, and not until Septem- 

 ber 12 was the occurrence of another series of 

 larger forms noted. These large forms increased 

 in number until, on the twenty -fourth, none others 

 occurred. 



The specimens of this seventh series of parthe- 

 nogenetic females are about seven-hundredths of 

 an inch in length, and appi'oach in form the stem- 

 mothers. The honey tubes are long and slender, 

 equal to three body segments, and the an- 



tennje equal half tne entire length of the 



„, . . 1 •* • *v, ijj^^v^tFig. 31— Winffles.s, agamic, 



. insect. There is a single sense pit in the nfth_^ viviparous female of the 



spo-ment seventh series from bi^ 



segmeni. u^.^^^, . enlarged. 



September 27 it w^as seen that a new series of slender, oval examples had 

 made its appearance, and on October 1 it was possible to distinguish the 

 male and female larvae. October 4 true males and females were found, and 

 from this time on they became increasingly abundant, while the partheno- 

 gentic females as gradually disappeared, isolated specimens lingering to 

 November 1. 



A male appears like a larva in the second stage as to size: but the legs 

 are long and slender, the tibiae are clothed with hair, and the form of the 

 anal segment is altogether different from any type of any previous series. 

 The antenna? are almost as long as the entire insect, and sensory pits occur 

 on all save the two small segments at the base. The third joint is longest, 

 and has nine to ten pits, irregularly placed on all sides. The fourth seg- 

 ment is two-thirds the length of the third, and has about the same number 

 of pits, grouped near the middle and on all sides. The fifth segment is a 

 little shorter than the fourth, has a group of three pits around the tip and 

 three others on the main stalk. The sixth, or whip-joint, has a group of pits 

 at the point of enlargement. Very little difference in the arrangement of 

 these pittings was observed in the specimens examined. 



The female is one-half larger than the male, very regularly oval, a little 

 more pointed posteriorly. The antennae are less than half the length of the 

 body, six-jointed, a single sensory pit at the end of the fifth, and a small 

 group at the enlargement of the sixth joint. The legs are slender, propor- 

 tionately somewhat shorter than in the male, the hind tibiae with sensorj' 

 pits irregularly placed on all sides — about eleven in number. These pits 

 are very obscure, except on carefully prepared specimens, and there is little 

 variation in the general arrangement. 



Eggs were first observed October 10. and thence, until after November 

 20, the females were busily adding to them. How many eggs an individual 

 female may lay was not noted. It was observed, however, that after laying 



