478 LEPIDOPTERA. 



their long, wide, and flattened feelers, -which are held close 

 together, and project horizontally from the fore pai't of the 

 head, in the manner of a snont. The antenna} in both 

 sexes are naked, and Lristle-formed. The wings vary in 

 color, being sometimes dnsky or blackish brown, and some- 

 times of a mnch lighter rusty-brown color. The fore wings 

 are marbled with gray beyond the middle, and have a dis- 

 tinct oblique gray spot on the tip ; they are crossed by two 

 wavy blackish lines, one near the middle, and the other 

 near the outer hind margin ; these lines are formed by little 

 elevated black tufts, and there are also two similar tufts 

 on the middle of the wing. The hind wings are dusky 

 brown or light brown, with a paler fringe, and are without 

 bands or spots. The wings expand about one inch and a 

 quarter. 



The means for destroying the hop-vine caterpillars are 

 showering or syringing the plants with strong soapsuds, or 

 Avith a solution of oil-soap in water, in the j^roportion of two 

 pounds of the soap to fourteen or fifteen gallons of water. 



The foregoing is the only kind of Delta-moth that appears 

 to be particularly injurious to any of our useful or cultivated 

 plants. 



5. Leaf-Rollers. ( Tortrices.) 



There are many caterpillars that curl up the edges of the 

 leaves of plants into little cylindrical rolls, open at each 

 end, and fastened together with bands or threads of silk. 

 These rolls serve at once for the habitations and the food 

 of the insects ; and to the latter LinnjEus gave the name 

 of Tortrices, derived from a Latin word signifying to curl 

 or twist. All the caterpillars now put in this tribe are not 

 leaf-rollers. Some of them live in leaf and flower buds, 

 and fasten the leaves together so that the bud cannot open, 

 while they devour the tender substance within. Some live 

 in a kind of tent formed of several leaves, drawn together 

 and secured with silken threads. Others are found in the 



