The Catalpa Sphinx 
(Ccratoniia catalpcr Bdv.) 
One of the most destructive of the few insects to which the 
catalpa tree is subject is a large showy caterpillar known as the 
catalpa sphinx (Fig. i). It is a southern insect, and has not been 
found in this state north of Clay and Richland counties, altho it has 
Pig. 1. Catalpa ST^Yims [Cerat •mia catalpce): a, egg mass; <>, newly hatched 
larvas: c d. larv;c one-third growti and one joint showing its dorsal pattern; 
e,f.g,h.i, mature larvce. variously marked, and single joints showing dorsal 
patterns: ,;, pupa: k. moth: I. egg, enlarged; others all slightly less than 
natural size. (Ohio Experiment fetation) 
