PSY CEE. 
NOTES ON OUR SPECIES OF EMESID. 
BY NATHAN BANKS. 
THE insects of the Hemipterous family Emesidee, commonly known as ‘‘skeleton- 
bugs,’ are not often taken by the collector. A number of species are, however, 
quite abundant, when one knows where to look for them. They are usually adult 
in the late summer and fall, and most are found in November and December, under 
boards, at the base of tufts of grass, er on the ground. A few are more common on 
tree-trunks, or dead logs. 
During the past few years I have accumulated quite a number of these forms, 
including all those recorded from the United States, and a number of new forms. 
Twelve species are here recorded, and as many more will undoubtedly be found, as 
our country is more thoroughly explored. 
TABLE OF GENERA. 
1. Trochanter I bearing two small but distinct spines; tibia I not half as long as 
femur I : : DS 
‘Trochanter I without spines Nas a ; : ; F ; p eS. 
2. Body winged; antennz hairy : . Ploiariopsis. 
Body apterous; antennze not hairy —. : : : ‘ : Ploiaria. 
3. Tibia I nearly as long as femurI , ; : ; , aie 
Tibia I hardly one-half as long as femur I. : : : . 4, 
4. ‘Tylus between antennz is very prominent; prothorax well separated from 
mesothorax; head fully one-half as long as coxa I. 5 ee Barca. 
Tylus between antenne not prominent; prothorax not so distinctly separated 
from mesothorax; head less than one-half as long as coxa Ll. . LEmesa. 
5. Prothorax shorter than the head, and united to the mesothorax  Ploiariodes. 
Prothorax longer than head, and distinct from the mesothorax— . . Luteva. 
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