Report of the State Entomologist. 



21 



Orthoptera. 

 Caloptenus spretus Uhler; Eiley, 1st Eept. U. S. Eut. Coinm., p. 258. 

 The injuries from the above insects (twenty-five species) differ in 

 character and in degree, as will appear from the following brief 

 notices of their depredations : 



Fades imperialix, or the pine Emperor moth, is among the largest of 

 the family of Boinbyeidce, which contains our largest lepidopterous 

 insects. Its caterpillar, from its great size, is necessarily cpiite vora- 

 cious as it approaches maturity, and will readily denude a limb of 

 its leaves; but fortunately it never occurs in numbers sufficient to 

 enable it to inflict any sericms injury. It is seldom that more than 

 two or three occupy the same ti'ee. A figure of the moth — not a 

 good one, but serving the purpose of recognition — is given in the 

 Natural History of the Stale of New York — Agriculture, by E. Emmons, 

 vol. v., pi. 40, fig. 7. 



Tolype laricis, the larch-lappet, infests also the larch {Larix Ameri- 

 cana), from which it has 

 drawn its specific name- 

 It also occurs upon pines, 

 and is but seldom met 

 witli on the hemlock. It 

 is a beautiful, interesting 

 and rare species — never 

 becoming so numerous as 

 to prove a pest. A detailed account of its trans- 

 formations, life-history, distribution, etc., is contained in the first Report 

 on the Insects of New York. The male is shown at figure 1, and the 

 female at figure 2. 



Thyridopteryx epliemerceformix, the basket or bag-worm, is also 

 seldom met with on the hemlock. Of its twenty known food-plants, 

 its favorites are, apparently, the red cedar (Juuiperui^ Virr/inianuf^), and 

 the arbor vita; {Tluija Occidentali^). 



Cleora pulchraria is one of the " measuring worms " (as are the three 

 following species), which is found frequently on the hemlock, but it is 

 of an inconsiderable size, and never multiplies to an injurious extent. 

 Tephrosia Canadaria is another measuring worm, which feeds on tama- 

 rack and spruce, and probably on pine, as the moth has been found 

 abundantly at Center, N. Y., amidst the joines of that locality. 



Eujnthecia luteata is common on several of the evergreens. It is a 

 small larva, and of no special economic importance. 



The hemlock inch-worm (a Eujnthecia species) and the ten-lined 

 inch-worm, as in the absence of a knowledge of the moths which 

 they produce, the two are designated by Dr. Packard, have only been 

 observed in Maine, and nothing has been recorded of their habits, 



Fig. 1.— The niak- 

 Tolype laricis. 



Fi«. 2.— The female 

 Tolype labicis. 



