666 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 



Moth. — Front silvery, with a reddish hue. Tuft and thorax reddish-orange. Au- 

 tennte blackish-hrown. Forewings rather deep reddish-orange, with two silvery 

 bands black-margined behind, one in the middle of the wing and nearly straight, the 

 other midway between this and the base of the wing and obliquely placed. Before 

 the costo-apical cilia is a costal silvery spot, black-margined on both sides, with an 

 opposite dorsal spot, black-margined behind. The apical portion of the wing is dusted 

 with blackish, dispersed scales, with a white spot near the tip above the middle of 

 the wing. There are two hinder-marginal lines, one the margin of the dispersed 

 scales, the other dark brownish in the cilia. (Clemens.) 



INSECTS AFFECTING THE CATALPA. 



Catalpa hignonioides. 



AFFECTING THE LEAVES. 



1. The Catalpa sphinx. 



(Plate XXXVIIID. 



Sphinx catalpw Boisd. 



Order Lepidoptera ; family Sphingidje. 



An account of this sphinx by Prof. Eiley (with an excellent plate) 

 which we are kindly allowed to reproduce, appeared in his report as U. 

 S. Entomologist for 1882, p. 189. 



The caterpillar frequently defoliates the Catalpa, though usually a 

 very rare insect. It differs from others of the family in laying its eggs, 

 sometimes 1,000 in number, in a mass on the leaves or stems or branches; 

 the larvae being at first gregarious. At Atlanta, Ga., there are three 

 or four broods during the summer ; the last brood hibernating in the 

 pui)a state beneath the ground, the moth appearing in March. In sum- 

 mer it is six weeks from the time the egg is laid till the moth appears. 



AFFECTING THE PODS. 



2. The catalpa-pod diplosis. 



Diplosis catalpw Comstock. 



The following account is taken from Professor Comstock's report for 

 1880: 



In the early part of August the unripe and normally green pods of the Indian bean 

 {Cataljia hignonoides) iijiou the Department grounds were noticed in many cases to 

 have partly turned brown in a strange manner, one-half or more of the pod remain- 

 ing green, while the remainder appeared to be dry and of the color which it usually 

 has when ripe. Upon opening one of these abnormal pods the mass of seeds was 

 found to be fairly filled with active, footless little yellow maggots, none of them 

 more than 3.25"^™ long. When disturbed they wriggled from the pod and fell to the 

 ground, or bringing the two ends of the body together and suddenly straightening 



