XIX. On the Hymenopterous Parasites of Coleoptera. 
First Supplement. By Ernest A. ELLIoTT, 
F.Z.S., and CLAUDE Mor .ey, F.ZS. 
[Read March 1st, 1911.] 
SINCE the publication of our Paper upon this subject, 
in these Transactions in 1907, much additional matter 
has come to our knowledge, principally through the works 
of Nees von Esenbeck, Dours, Professor Thomson, Curtis, 
Rev. T. A. Marshall, Dalla Torre, Kieffer, and papers in 
the earlier E. M. M., and by Pierre in Révue Linn. of 1903. 
This material now appears to have assumed sufficient 
bulk for publication, and should be used in conjunction 
with the original Paper, with which it is uniform and 
concurrently numbered. Additional hosts are printed in 
capitals and those already known to be attacked, but 
upon which additional observations are noted, in italics 
as before. 
Oa. CICINDELA CAMPESTRIS, L. 
Og. CICINDELA SYLVATICA, L. 
It has recently become known that our rare Aculeate, 
Methoca ichneumonoides, Latr., is a true external parasite 
on these species. First, Gottfrid Adlerz observed (Archiv. 
for Zoologi, 1903, pp. 255-8) Methoca attacking larva of 
C. sylvatica on the bank of the Ljungan in Medelpad, Central 
Sweden. Secondly, the same author (lib. cit., 1906, iv. 
pp. 1-48) describes in detail experiments with J/ethoca 
on C. campestris larvae in captivity. And lastly, B. E. 
Bouwman saw (Tijdsch. v. Ent., 1909, pp. 284-294) Methoca 
enter a burrow of Cicindela larva at Breda in June; it 
paralysed its head, thorax and two basal segments, also 
biting the sternum; the egg is laid on the ventral 
surface of thorax; the Methoca emerges in four or five 
days, and appears to suck juices from Cicindela larva 
without any distinct incision; it leaves its host in about 
three weeks and forms a cocoon of sand-grains; no male 
Methoca were seen. Donisthorpe tells us it probably also 
attacks Cicindela germanica, L., since he has found it at 
Blackgang Chine. 
TRANS, ENT. SOC. LOND. 1911.—PART II. (OCT.) 
