Hymenopterous Parasites of Coleoptera. 29 
of nearly an inch in leneth from this beetle in dead wood 
(11, 105), Helcon carinator and, doubtfully, Helcon tardator. 
Of H. carinator he says (ii, 68): “I bred 6 f f and 2 2 
from an oak bough in which the otherwise rare Apate 
sinuata, with LHecoptogaster intricatus and C. fennicus had 
bored extensively; of C. fennicus only one beetle emerged ; 
either the Helcon attacked this species only, or at the 
same time the somewhat large Apate.’ Marshall, however, 
has not noticed this parasitism under either species of 
HHelcon. 
96. Hxocentrus lusitanus, Linn.* 
Brischke appears to have paid considerable attention to 
the parasites of this species, for, in his “Die Ichneu- 
moniden der Provinzen West- und Ost-Preussen,” he 
records Cxnocryptus tener, Ephialtes discolor, Spathius 
brevicaudis and Trigonoderus dactilis, as preying upon it. 
97. Exocentrus punctipennis, Muls.* 
A Braconid, under the name Blacus exocentri, Gir., 18 
recorded by Laboulbéne (Ann. Soc. Fr. 1877, p. 411) as 
having been bred from this species by Perris in France. 
98. Hxocentrus adspersus, Muls.* 
Laboulbéne (lib. cit. p. 419) instances the Chalcid, 
Husandulum inerme, Ratz., as parasitic on this Longicorn. 
99. Pogonocherus fasciculatus, DeG. 
Lracon flavulator, one f from fir billets (Ichn. d. Forst. 
1. 46), Hphialtes carbonarius, Pimpla terebrans, Pteromalus 
Dahlbomii, two f f taken out of this host upon different 
occasions (1, 202) and a single pair of P. Pogonochoeri, from 
fir billets in which this beetle had lived (i, 200), are 
recorded from Cerambyx fascicularis, Panz., by Ratzeburg 
(ii, 212) ; and to these are added (iii, 249) Bracon igneus,!” 
several bred froin fir boughs in which were these beetles, 
B. undulatus and B. palpebrator, from the same host; 
the last-named parasite was several times bred in great 
numbers by Reissig from P. hispidus, Linn. (iii, 38). 
Reinhard obtained four ~ f and twelve ? 2 of his Doryctes 
pomarius from the borings of Pogonocherus fascicularis, 
Panz., Scolytus rugulosus and S. pruni in fruit trees, as 
recorded by Marshall and Kirchner. 
