[Murata Shinya(村田真哉)×Hakozaki Isuka(匣咲いすか)×Hiyama Daisuke(速水時貞)] Caterpillar (キャタピラー) - Vol.08&09 [2016-08-25~2017-03-25]
Illustrator is Hiyama Daisuke (速水時貞) starting from v04.
Code:
https://www.sendspace.com/file/n601om
Looks like the girl grows in the same way the Boss in Arachnid did, the final volume shows she is sort of ageless and her body just poofs older instead of aging normally.
There is a chart in P.175 detailing different insect branchs, she introduces herself first as Himekuwagata, then as Ookugawata, and finally as Hirata Kuwagata.
The scene setup is extremely similar to the one in Cynthia the Mission.