218 
PROCEEDINGS OF THE NATURAL [April/89. 
of the many insects, notably Coleoptera and Trypetid 
and Ortalid Diptera, which swarmed about the rank vege¬ 
tation. 
Is is easy to see how the Alantispa , borrowing the 
bright warning - colors of the wasp, may escape destruc¬ 
tion by birds, spiders and possibly also by the large robber 
dies (Daphriae), which were flying about in great numbers 
looking for insect food, and which I sometimes saw carry¬ 
ing oft insects as large as a female Lachnosterna lanceo- 
lata. 
The other case of mimicry relates to the Chrysomelid 
3eetle. Disonycha carolmiana , Fab. (/) punctigera, Lee.) 
and the Carabid beetle Lehia furcata , Lee. These two in¬ 
sects, so widely separated in our systematic collections, 
are m life close companions. 
On the 18th of June, while examining the foliage of the 
°n to eaved willow (Salix long! folia) , one of the few spe- 
, e " ° ^ *.^ OVV one meets the damp spots of the Nebras 
prairie, I found numbers of the Disonycha hopping 
a bout and m copula among the leaves. The insect is brick¬ 
ie , 3er * eat anc * t * le ^ leac ^ an d thorax are brick-red above, 
the latter ornamented with black dots, two of which, near 
“ hn f’. are vtr - v distinct. The antenna are Mack 
b “r' Jomts - Em1 > of the cream-colored elvtra 
ha, a merl r externa,l T and along the suture, and 
elvti th b 'a<=k band. When dosed, the 
bkek edto" fT" 1 “ ,ree ,on 8 it '>'itaal black bands, the 
a ” SUt " re f0rmi " g the 1 -P^red 
quently found TatThad takenat'th"‘ em "“T 
S n,rc r " hich 
escaped my attention during the T”?’ ^ 
The Lebia is brick red h § *, Cltement of collecting. 
The head and^a^T& ?“* ** 
v led above, the antenna? 
