INSECTS AFFECTING PARK AND WOODLAND TREES 699 



Black-horned tree cricket 

 Occixutlius Higriconu's \\ alkcr 



This tree cricket may be recognized by its dark or nearly l)lack antennae, the black 

 markings on the basal joints as illustrated in figure 212, and iiy the rufous and dark mark- 

 ings upon the head and abdomen. It is somewhat variable in coloring, though possessing 

 a characteristic a|)pearan(e. 



This species occurred in small numbers on liarcl \nnv at Karncr in 1901, 

 ami was as abundant as any other species of this ocnus in thai section. 

 Adults were taken in Aui,^ust and .September, and the species is imdoui>t- 

 edly of some benefit to trees because of its predaceous habits, 

 though shrubs, particularly those with soft wood, may be 

 injured to a considerable extent b\- the deposition of eggs. 

 This insect was noticed by Dr I'itch in 1S56, who states that 

 it is almost as common as the snowy tree cricket ( O (• ca n - 

 thus n i V e u s I)(;G. ), and who treated of it under the name 

 of (). fasciatus DeGeer. This sijccies occurs from the lal-'''^- • "'■•^^•■"- 

 ter part of luly till frost, along roadsides and in open fields, <;"■■"'*■ ""'i"- 



I J ' •-* 1 side of n.-is.'il 



accordino- to Mr Beulcnmuller, who considers it one of the most "'""""i "5- 



•^ mcnts (Allcr licii- 



common in the vicinity of New York city. Proft'ssor liruner ■'"'""""• ^n,. 



-' • Mils. N.it. Hist. 



states that it is almost as abundant in Nebraska as the snowy ""'■ '*«* 

 tree cricket, and that it is a frequenter of meadows and may be found 

 among weeds and grasses, depositing eggs as a rule, in weed stems. Pro- 

 fessor Lugger considers it a very common form in Minnesota. It is 

 interesting to note that it occurs in Mississippi, where Mr W. H. .\shmead 

 detected a small parasite, Antigaster mirabilis Walsh ovipositing 



in the cricket's eggs. 



Bibliography 



1894 BeutenmuUer, Wm. Am. Mus. Nat. Hist, Bui. 6:270 



Four-spotted tree cricket 

 OccantJnis quadripunctatus Hcutm. 

 This species occurs in small numi)ers iluring earl\- fall on hard pine at 

 Karner. It has been recorded from Ithaca, Staten Island and a niunber of 



