156 ENTOMOLOGICAL NEWS. [April, '14 



Adelocephala bisecta (Lepid., Family Ceratocampidac). 

 By John R. Eyer and Chester H. Menke, Greenville, Ohio. 



(Plate Vn.) 



Adelocephala bisecta, together with its near relative A. bi- 

 color form the only two representatives of this genus in the 

 United States. These two show a remarkable similarity in 

 their larval habits, and as both feed on the same food plants 

 they have not, until very recently, been distinguished. 



The moth of A. bicolor, in coloring and marking, resembles 

 ver}-- closely the female moth of Aiiisota senatoria. Yet the 

 males of the two may very easily be distinguishd, for bisecta 

 lacks the transparent spot on the fore wings which is so char- 

 acteristic of the male senatoria. 



. The fore wings of bisecta are ochre-brown, speckled with 

 purplish dots and crossed by a purple border line. The dis- 

 cal dot, although white, is very small and inconspicuous. The 

 under wings vary from orange to carmine, but are most deeply 

 colored near the abdomen. The body is ochre-brown, and 

 very "furry." Male and female are marked exactly alike, but 

 the wings of the male are more acutely cut. The antennae 

 of the male are pectinate at the base, and simple at the tip; 

 those of the female are simple. 



In the Ohio valley bisecta is double brooded, the moths 

 being found late in May, and then again in July. 



The eggs are light, brownish green in color, and very flat. 

 They are laid in mats or clusters, and may be distinguished 

 from those of bicolor by their brownish tinge. In nine days 

 the caterpillars can be seen through the egg-shell, and on the 

 eleventh day they hatch. 



The little caterpillars are % inch in length, yellow green 

 in color, and bear eight dark colored, knobbed horns on the 

 second and third segments, as well as a smaller one on the anal 

 segment. They will feed on either honey locust (Gleditschia), 

 or Kentucky cofifee-tree {Gymnocladus). 



In about two weeks they moulted, coming out dark green, 

 with yellow horns and granules. Along each side they bore 

 a stripe composed of yellow granules. After the third moult 



