283 



when I pulled the nest to pieces. This parasitic larva 

 proved by breeding the next summer to be the larva of 

 Salius sanguinolentus. The egg Avas placed on the spider's abdo- 

 men in the hollow between abdomen and thorax. Tiie spider is 

 apparently quite unable to remove either the egg or larva 

 which after a while completely sucks the spider dry without 

 it having laid its eggs. 



I have made the following notes, amongst others, with 

 respect to this species. 



^/s 07. Cheiracanthiwn with freshly emerged Salius- 

 larva. The spider was alive while the larva 

 sucked out it juices, 



"/a 07. Spider died. 



^^/s 07. Parasite left spider. 



^Vs 07. Parasite larva about to spin and was then 

 placed in spirit. 

 The iSa/m-larva spins a cocoon in the spider's nest and 

 first emerges the following summer. 



Oscinis pratensis Meig. It has always been supposed 

 up to the present that the larva of this Diptron lived in 

 plants. I have now been able to prove that it is a parasite 

 upon the eggs of Epeira cornula CI. and it will not be 

 searched for in vain, in those localities where this spider 

 is found. 



Pezomachus zonatus Forst. -|- Hemiteles artiges. Dr. 

 Kriech bau mer states i the Ent. Nachriefen, Berlin 1891) 

 Vol. XXV pp. 298 — 301 that he has bred Hemiteles artiges 

 from the same spider's nest as Pezomachus zonatus Förster 

 and concludes from this that Hem, artiges is the male of Pez. 

 zonatus. His supposition is quite correct, as I have several 

 times bred both species from similar spiders' nests and have 

 also succeeded in getting the two insects to pair. Dr. Kr., 

 however, expresses in the same article, a doubt as to the 

 correctness ofBrieschke and Koch's remarks respecting the 

 host's nest. I must, however, state that his doubt is quite 

 without ground. Br, and K.s discription of the nest that has 

 the form of a Vaccinium flower with a stalk, is really the 



