Hymenopterous Parasites of Coleoptera. 17 
p. 154): ‘‘ Mr. Paul has shown me the destroyer of the wire- 
worm, which belongs to Latreille’s genus Proctotrupes.” 
37. Malachius xneus, Linn. 
We have a very uncertain record concerning this beetle: 
Herr Reissig (Ichn. d. Forst. 11, 109) bred Hphialtes gla- 
bratus from spruce cones, together with Vortrix strobilana, 
Anobium and Malachius eneus. Which it had preyed upon 
remained uncertain. 
38. Dasytes. 
Under Mesostenus ater, Kirchner writes (Cat. 57): 
“Nordlinger erzog ihn aus einem alten Buchenstocke, 
worn Melandrya, Sphex und Dasytes gehauset.” A single 
g of this parasite was bred by Nordlinger from an old 
beech stump, in which MMelandrya, [? Sphex and Dasytes| 
were boring (Ichn. d. Forst. 11, 143). Hphialtes gracilis * 
has also been several times bred from oak (/. ¢. 111, 109) ; 
sometimes a Dasytes appeared with it, at others a Raphidia 
or Crabro. 
39, Dasytes niger, Linn. 
Campoplex pusillus* and Ephialtes gracilis * are 
indicated by Ratzeburg (Jib. cit. iii, 249) as preying upon 
this species. 
40. Dasytes ceruleus, Fab. 
At Schr. Nat. Ges. Danz. 1880, p. 110, Brischke describes 
his Hphialtes discolor, and adds: “Aus Lindenstécken 
mit Dasytes cerulea und LHxenterus balteatus erzogen.” 
This may be Ratzeburg’s Pimpla ligiicola™ (Ichn. d. Forst. 
ii, 98), which he found in worm-eaten oaks tenanted by 
Dasytes ceruleus. 
41. Thanasimus formicarius, Linn,* 
Ratzeburg (ib. cit. 111, 249) records Hemiteles melanarius 
and, with doubt, H. modestus 8 and Bracon palpebrator as 
parasitic upon Clerus formicarius, [Cf. also Mesostenus 
brachycentrus, under Hylesinus crenatus, post.| Marshall 
(Bracon. d’Europ. i, 167) does not note this doubtful 
1 Stephens (Illust. Suppl. 8) says of Perilampus micans, Dalm., 
“found in company with Lyctus oblongus and Tillus wnifasciatus,” 
on new oak palings at Camberwell. 
TRANS. ENT. SOC. LOND. 1907.—PART I. (JUNE) 2 
