134 ENTOMOLOGICAL NEWS. [J une > 



mentioned above, no attempt was made to take a full series of 

 them, but only those as happened in the way were picked up. 

 Of those taken by far the larger numbers were Chrysomelidae, a 

 family which is extensively represented there, almost every kind 

 of plant having some species which feeds upon it. A Doryphora, 

 very similar to decimlineata Say, but smaller and darker, was 

 found feeding upon a cultivated species of Solammi, showing that 

 that genus of plants is the favorite food of these beetles. Of the 

 Carabidae, the family most largely represented in Indiana, but 

 half a dozen species were collected, although a person looking- 

 for them especially, could undoubtedly have found many more. 

 The largest and most striking beetles taken were the Dynastes 

 and Xylorycies already mentioned, of which the latter were very 

 common about the lights at night, though more were seen during 

 the day; and the gigantic long-armed beetle Acrocimts longimanus, 

 three specimens of which were also taken about the lights. A 

 single male of the handsome and peculiar Scarabaeid Inca clath- 

 ratus, was also secured. 



Of the Orthoptera, forty species of Acrididae or locusts, were 

 taken, the giant of this number being Rhomalia auricornis Walk., 

 which was not found above Fortin, but was quite frequent at Cor- 

 doba. Unlike most of our species it is not found on the ground, 

 but on tall weeds and bushes, upon whose leaves both adults and 

 larvae feed. Like all the larger locusts it is very clumsy in its 

 movements being easily captured with the fingers. Locustidae, 

 or "Katydids," were common, especially about the lights, and 

 some of them were of enormous size. The Blattidae, or cock- 

 roaches, are represented in the collection by six or seven species, 

 the most abundant ones seen being the well-known Croton bug 

 and the Oriental cockroach (Periplancta orientalis L.), both of 

 which are cosmopolitan. The " earwigs," formerly classed under 

 this order, but now placed by themselves under the order Der- 

 maptera, are with us very rare insects, but in Orizaba they literally 

 swarmed on the sides of the houses, and three or four species of 

 them were secured. 



Sixty species of Hemiptera, or ' ' bugs' ' proper, were taken as 

 opportunity offered. Leaf and tree hoppers were to be seen by 

 thousands, and varied much in size and color. Pachycornis tor- 

 ridus Scop, and Stiretru.r anchorago Fab., which are among the 

 most brilliant of the Heteroptera, and so variable in color, that 



