53 



much shrunken and black. When opened they were found to contain 

 several small, yellow, footless maggots, similar to the catalpa pod Diplo- 

 sis, and having the same power of leaping. The eggs were apparently 

 deposited in the stem at the base of a leaf petiole or in the petiole base 

 itself and the stem begun to die at this point. 



The writer was not able to rear any of the larvae to adults, hence it 

 could not be determined whether the maggots causing the injury to the 

 stems were the same species as those developing in the pods. In one 

 small block of two-year-old catalpas about twenty-five per cent, of the 

 trees had been injured. They had been cut back to the ground the pre- 

 vious spring, and as a consequence had made a very vigorous growth. 

 Many of them had been injured while still quite small, and in nearly 

 every case all three of the lateral buds, at the last joint below the point of 

 injury, had attempted to produce a leader, which resulted in a crooked 

 forked stem. This insect seems likely to assume considerable economic 

 importance to nurserymen and others growing catalpa trees. 



The writer would suggest cutting and burning the withering tips 

 before the larvae leave them as one means of preventing further injury. 



1880, Comstock, Rept. U. S. Commr. Agri., p. 266. 



1890, Packard, 5th Rept. U. S. Ent. Comrn., pp. 666-668. 



ORDER ORTHOPTERA. 

 Family Locustidae. 



Orchilimum sp. The eggs of a long horn grasshopper of this genus 

 were found in the leaf petioles of catalpa trees at Washington C. H. 

 and Tippecanoe City, Ohio, during October, 1905. 



1905, Records Div. N. and O. Insp., Ohio Dept. Agri. 



Family Gryllidae. 



Oeccmthus niveus Harr. The Snowy Tree Cricket. The charac- 

 teristic egg punctures of this insect were found in petioles and tender 

 twigs of catalpa at Washington C. H., Ohio, September, 1905J 



1890, Weed, Ann. Rept. Columbus Hort. Soc, 5:106-107. 



1905, Records Div. N. and O. Insp., Ohio Dept. Agri. 



ORDER' HEMIPTERA. 

 Family Coccidae. 

 Aspdiotus permciosus Comst. San Jose Scale. Infests trunk and 

 branches of catalpa. The small hymenopterous parasite, Aphehnus fus- 

 cipennis has been reared from this scale insect on catalpa. 



