257 



HYMENOPTERA CAPTURED NEAR YORK 

 IN 1883 AND 1884. 



THOMAS WILSON, 

 York, 



The following are additions to my previous list of Sawflies taken in 



this neighbourhood in 1883 and 1884. To Mr. Cameron I am 



indebted for their names. 



TENTHREDINIDES. 



*Tenthredopsis cordata. A species new to Yorkshire. I have taken 

 two examples (females) amongst oak. It is not in Mr. Cameron's 

 1878 catalogue, and as I have not seen his monograph of these 

 insects, I am not certain whether it has been taken before or 

 not in England. 



The following is a description of the perfect insect : — 

 Head and ocellus black ; eyes black, surrounded with a white 

 ring; antennae black, with nine joints; clypeus and labrum white; 

 mandibles red, with the tips black. Meta- and mesothorax black; 

 scutellum white, heart-shaped. Abdomen : four first segments 

 black, the remainder bright red. Ventral surface black to the 

 third segment of the abdomen, the fourth having the centre red, 

 the remaining segments being entirely red. Legs : coxae and 

 trochanters black ; front legs— the base of the femora blacky 

 the posterior portion red ; the central and hind legs have the 

 femora black, of which colour also are the tibiae ; the tarsi in 

 the front and central, legs are pale brown, and those of the hind 

 ones black. Wings : costal nervure pale brown as far as the 

 stigma ; the stigma black ; the other nervures dark brown. 



I should say that the colour of the legs is liable to vary, as in 

 the other example I have they are all alike. 



At first sight this insect much resembles T. dimidiata, which 

 has the penultimate joints of the antennse white. It has also 

 two white basal abdominal spots, and black scutellum. 



*Athalia lugens Klug. Taken in Askham Bogs, 1884. 



EMPHYTIDES. 



*Emphytus serotinus Klug. One example found in the Nurseries, 

 York, 1884. 



SELANDRI ADES. 

 *Bleimocampa fuliginosa Schr. This species was found by me flying 

 amongst smooth -leaved willows, evidently a willow-feeder, 

 although I have not been able to find the larva as yet. The 

 Nurseries, York. 



Sept. 1880. s 



