TUK KNTOMOLOUlSi S KECORI). 



^civYMENOPTERA. 



Platylahus pedatorius, Fab. — In answer to my request for Ichneu- 

 monicLT, Mr. Tutt kindly sent me three bred out in his pupa-cages 

 on April 15th last, and another of the same kind upon the 19th. Of 

 these the first were S^ and ? ? , and the second ? , which I have 

 only just determined to my own satisfaction. I have now no doubt 

 that they may be referred to Platylahus pedatorius, Fab. {E.S., ii., 133). 

 Fabricius, however, only knew the S' • Richter bred both sexes from 

 pupa-cases of Gennu'tra die nnpod lata { — Fdunja coiiitata). These latter 

 belonged to var. P. iridipoinis, and are described by Gravenhorst as a 

 distinct species under that name {I.E., i., 194). All Mr. Tutt's speci- 

 mens belong to the type form — without the distinctive white line 

 before the radices of the wings. The genus appears to be of unusual 

 occurrence in Britain, with the exception alone of the present species. 

 I have once received I'lati/labus jmctor, Wesm., from the London dis- 

 trict. Unfortunately Mr. Tutt cannot tell ns what was the host of /'. 

 pedatorius, nor, indeed, if it came from British pupae. It seems especially 

 to affect Pjupitheciae, having been bred from E. sobrinata, nanata, 

 cxiii)(ata, piwpindleta, and innotata. In Britain, Golding-Bird has bred 

 it from E. suhnotata, and it also preys upon the continental E. 

 scopariata. Its only other known host is Hi/bernia dcfoliaria, for which, 

 perhaps, it was seeking when taken, as Gravenhorst tells us, at oak ; 

 he also saw it on umbels, and I once found a large ? upon Heraclenm 

 sphondi/liuui in Bentley Woods, near Ipswich, in 1891. May I add 

 that I shall be glad of any IchneumonidiB bred or captured ? — Claude 

 MoRLEY, F.E.S., Ipswich. October 2.0th, 1899. [Since Avriting the 

 above, I have found another specimen of P. jiedatorius in my collec- 

 tion ; it is a (^ and was bred by the Rev. C. D. Ash, B.A. (Avho kindly 

 sent it to me alive on June 26th last), from a larva of IHantJtnecia 

 carpophai/a, from Shoreham, Sussex, upon June 23rd. This specimen 

 is much larger than Mr. Tutt's <? , and has the post-scutellum yellow 

 at its apex, the inner orbits of the eyes only (instead of the whole face) 

 are so marked, and the posterior tibift, as well as the extreme apex of 

 the femora, are entirely black. It may be well to here point out that 

 a good sexual character (which I find nowhere mentioned) is to be 

 found in the conformation of the postero-medial area of the metathorax, 

 which is nearly quadrangular with the lower angles produced in the 

 2 , but much narrowed transversly in the ^ . This character will, I 

 fancy, be found to be persistent. — C. M. Xorember 1th.] 



©RTHOPTERA. 



Notes on the Decticidae with descriptions of new species. 



[Concluded t null p. 298.) 



By MALCOLM BUllE, F.Z.S., F.E.S. 



Dhymadusa FLETciiEiti, sp. 11. — Siituia iiiaxiiiia. Colore fusco, badio. Caput 

 iiia|,'iiiun. Pronotum antice i-ectuin, postice productuni, inargine postieo rotundato, 

 carinis lateralibus nullis, carinula media longitudinali distincta, carinis lateralibus 

 obsoletiw, uietazona tantum discretis, lobis detlexis nitidis, inaijfine postico oblique, 

 sinu huiuerali nullo, colore fusco-testaceo, nigro-notato. I'^lytra vaide abbrevi- 

 ata, margineni posticum segiiieiiti primi abdominis vix snperantia. Alie nuUae. 

 Pedes validi. Femora postica subtus spinosa ; tibite auticje supra 4-spinos8e ; tibite 



