Il. On the Hymenopterous Parasites of Coleoptera: By 
ERNeEstT A. ELiort, F.Z.S., and CLAUDE MORLEY, 
F.E.S. 
[Read February 6th, 1907. ] 
THE subject of parasitism on Coleoptera does not appear 
to have been especially taken up by any Entomologist. 
Prof. Ratzeburg and a tew of his contemporaries collected 
a large amount of information on the parasites of Forest 
insects in general, and the former studied a few Coleoptera 
—Curculio notatus and some of the bark borers—more 
particularly. The results are found in the “ Ichneumonen 
der Forstinsekten,’ to which work (so little known in 
England) we are indebted for a great number of the 
records in the following paper. Marshall's records are all 
taken from other authors, but are useful in so far as they 
refer to the original records. Another valuable work is 
Giraud’s posthumous “ Liste des éclosions d’Insectes,”’ in 
which, however, there occur manuscript names. Other- 
wise the records are mostly scattered through numerous 
British and Continental magazines, and are only to be 
discovered by laborious research. While not claiming to 
include every published record on the subject, or any great 
amount of original work, we trust that the following list 
will be found of sufficient interest to encourage others to 
carry on the work, both by means of personal observation 
and by bringing to our notice records we may have 
overlooked. 
1. Calosoma sycophanta, Linn. 
“Once I caught a large, fat larva of Calosoma, and put it 
in spirits of wine. Soon afterwards it burst, and little 
larvee of Microgaster thronged out; over a hundred lay 
closely piled up together, with the anal extremity turned 
towards the abdominal end of the larva.” (Ratz., Ichn. d. 
Forst. i, 28, footnote; host specified at Jd. cit. 11, 212.) 
1 The Coleoptera bearing an asterisk are extra-British. The 
numbers in small type after the parasites’ names refer to those 
prefixed to the “Classified List of Parasites,” post. 
TRANS. ENT. SOC. LOND. 1907.—PART I. (JUNE) 
