INSECTS AFFECTING PARK AND WOODLAND TREES 



69I 



IS SOmc- 



in e 1 1 a 11 o- 

 «, enlarged 



Nine-spotted lady beetle 



Coccinclla novemnotata Herbst. 



A hemispheric, yellowish, nine-spotted beetle. 



This little lady beetle is one of our more common species and 

 what abundant on hard pines at Karner from July to 

 September. The insect is a well known species and 

 may be easily recognized by the accompanying illustra- 

 tion. It appears to be one of the more effective species 

 in controlling plant lice, since it is quite commonly met 

 with on trees infested by these little insects, and is 

 probably an efficient check on those living on pine. 



This species has been recorded by Mr Crotch from (ordinal) 

 the Atlantic region, Mexico and Guatemala. 



Three-banded lady beetle 



Coccinclla trifasciata Linn. 

 A yellowish, almost black-banded, hemispheric beetle. 



This medium to small sized lady beetle is sometimes 

 rather abundant. It is easily recognized by the transverse 

 black spots, which give it the appearance of being three-, 

 banded, hence its specific name. This little insect was met 

 with in small numbers on hard pine at Karner, one being 

 taken Aug. 9 and two Sep. 6, 1901. It undoubtedly 

 Fig. an coccineiia p re y S on tne plant lice infesting this tree. This beetle 



trifasciata, enlarged * J 1 



("teina 1 ) has a very wide distribution, having been recorded by Mr 



Crotch from Lake Superior, Oregon, Siberia and Lapland. 



Ips sanguinolentus Oliv. 



A black beetle about ^ inch long with a conspicuous orange band containing two 

 circular black spots on the basal two thirds of the wing covers. 



This species has a general resemblance to Ips q u a d r i g uttatus 



Fabr., and possesses similar habits. It measures about T ^ inch in length. 



