A NEW SPECIES OF EURYGASTER AND NOTES ON 
SOME LITTLE KNOWN SPECIES OF TURKISH 
PENTATOMIDAE (HEMIPTERA: HETEROPTERA) 
By Niyazi Lodos 1 
University of Connecticut, Storrs, Conn. 
The species belonging to the genus Euryg aster Laporte are very 
important from the economic point of view in Turkey. Euryg aster 
integriceps Puton is one of the most harmful insects to wheat and 
barley, but in addition it also attacks rye, oat and other graminaceous 
plants. In Turkey it causes extensive damage especially in the eastern 
south provinces, the amount of injury caused varying from year to 
year and from place to place. In epidemic years the total amount of 
the losses in some areas can reach up to 90% if no control measures 
are used. Eurygaster maura (L.) and Eurygaster austriaca (Schrk.), 
found especially in Western Anatolia, cause damage approaching only 
20% if no control measures are used, because their egg parasites are 
very active in this part of the country. A good knowledge of this 
genus is therefore very important to Turkish entomologists and agri- 
culturists. While working at the University of Aegea, Izmir-Turkey, 
I paid special attention to these insects and collected many specimens 
whenever time was available. Amongst my material I find one new 
species which is described below. 
Eurygaster chinai n. sp. 
Plates 15 and 16 
General shape: oblong-oval, subdepressed (fig. 1). General colour: 
reddish brown, except base of scutellum below pronotum which bears 
a narrow, blackish stripe transversally. 
Structure (female) : General shape of the head (fig. 2) subtri- 
angular, about as broad between eyes as long, somewhat flattened 
on its surface except middle of tylus which is slightly prominent and 
regularly convex in front; lateral margins near eyes slightly sinuated 
and from eyes perceptibly narrowed and keeled ; tylus long and some- 
what broad, narrowed apically, truncate at the end; juga projecting 
slightly beyond end of the tylus, not in contact with each other, broadly 
rounded at apex ; disc of head except margins finely and densely punc- 
tate. Antennae (fig. 3) brownish except fifth segment which is black- 
present address: University of Aegea, Faculty of Agriculture, Izmir, 
Turkey. 
Manuscript received, by the editor February 25, 1963. 
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