Hymenopterous Parasites of Coleoptera. 461 
between Anobiz and Perilampus angustus (cf. No. 46), 
Nees, by breeding out the latter from 2. mollis, according 
to Dalla Torre (Cat. Chal. 354). During a shower on 
June 12, 1908, we were sheltering in a wood at Wangford 
St. Martin, Suffolk, and took a 2 of Doryctes striatellus, 
Nees, hovering at a beetle-boring, evidently with the 
intention of ovipositing therein; on cutting out the boring, 
which was in a pine railing, we discovered larvae and 
immature imagines of £. mollis. No host has hitherto 
been assigned to this Braconid, but it is probably not 
uncommon since Mr. Donisthorpe has taken it also “ at 
a beetle-boring in fence, 1907.”—(MS.) 
54, Anobiwm pertinax, Linn.* 
Goureau also found Cerocephala cornigera, Westw., to 
be parasitic upon A. pertinax (Dours’ Cat., 92); and Dalla 
Torre gives Polyclistus (Exochus) femoralis, Fourc., on the 
authority of van Vollenhoven (Hym. Cat., iii, 216); the 
latter more probably attacks Pyralids. 
54a. NICOBIUM CASTANEUM, Oliv., var. 
hirtum, Thg.* 
Kieffer (Proct., 1, 234) says that Scleroderma domesticum, 
Latr., preys upon Nicobivm hirsutum—probably a lapsus 
calami for this variety—and undergoes its ecdysis in the 
cocoons of the Coleopteron: they all belonged to the 
var. longiventre, Kief. 
57. Ptilinus pectinicornis, Linn. 
Note that the host of Polysphincta clegans is not 
specified by Ratzeburg (Ichn. d. Forst., ii, 101). Of 
Hecabolus sulcatus, Curt., Haliday writes (Ent. Mag., 1837, 
p- 49), “In larvis Ptalini pectinicornis sobolem procreat.— 
D™= 'T. G. Rudd, in Curtis’ Br. Ent.” Smith adds Calosota 
vernalis, Curt., to the parasites of this species (Trans. Ent. 
Soc., 1852, p. 83). There are also two 2 2? Spathius exarator 
in Marshall’s col. labelled “ Bishops Teignton, ex Ptilinus 
pectinicornis.” Mr, K. A. Newbery found several of both 
sexes of H. sulcatus inside the borings of this beetle in an 
oak gate-post during June, 1911, at Dovercourt, Essex. 
TRANS. ENT. SOC. LOND. 1911.—PART II. (OCT.) HH 
