1066 Water H. WELLHOUSE 
THYSANOPTERA 
Thrypidae 
triticc Fitch, Euthrips 
Nymphs and adults of Huthrips tritici are very common in flowers and 
flower buds of native hawthorns in April and May. Many flower buds 
fail to open, and inside of them are found from one to a dozen or more of 
these thrips. They were exceedingly abundant in the Cornell University ~ 
arboretum in 1918, and very few hawthorns there bore fruit that year. 
COLEOPTERA 
5 Elateridae 
dubitans Lec., Limonius 
The beetles of the species Limonius dubitans occasionally are found 
eating leaves of native hawthorns in late May and early June. On May 
31, 1919, one of these click beetles was found on a Crataegus pruinosa 
Jeaf where it had been feeding, and was attacked by an adult pentatomid, 
Apeteticus modestus Dallas. The latter had its beak inserted into the 
beetle, which died while being carried to the laboratory. 
pubescens Melsh., Agriotes 
The beetles of Agriotes pubescens were eating the leaves of Crataegus ~ 
punctata on May 23. The species is not common. 
Melanotus sp. 
The beetles of Melanotus sp. were eating the leaves of Crataegus punctata 
on June 6 and June 8. The species is not common. 
Buprestidae 
aerosus Melsh., Brachys 
The beetles of Brachys aerosus were found feeding on Crataegus punctata 
leaves in warm sunlight from May 30 to June 20. There were commonly 
two or three to a leaf, feeding on the upper surface and cutting small 
holes through the leaf. As many as fifty of the beetles were found on one 
tree, while neighboring trees had none. They are from 4 to 5 millimeters 
long, and are brown and gold in color. 
Scarabaeidae 
elongata Fabr., Dichelonycha 
The beetles of Dichelonycha elongata were found feeding on Crataegus 
punctata foliage, six being seen on one tree on May 31. A seventh beetle 
was killed by three adult pentatomids of the species A peteticus modestus, 
which were feeding on its body. 
