Notes on Chalcidoidea (Hym.). V
Legolasia d,inotiscoides gen. n.r sp. n. and Trychnosoma ernobii sp. n.: Two New Pteromalids from Sweden (Pteromalidae)
By Kanr,-Jou,lx Hroqvrsr
Swedish Natural Science Research Council c/o Dept. of Ent., Swedish Museum of Natural History
S-104 05 Stockholnr. Sweden
Abstract
HEDevrsr, K.-J. Notes on Chalcidoidea (Hym.) .
Y. Legolasia dinotiscoides gen. n., sp. n. and Trgchnosoma ernobii sp. n,, two new Pteroma-
lids from Sweden (Pteromalidae). -- Ent. Tid- skr. 95: ll7-121,1974.
.{ nerv Pteromalid gents, Legolasio gen. n., rn'ith thc tvpe species I-. rlinotiscoicles sp. n., and
the nerv species Trgchnosonut ernobii sp, n. are described from Sweden, thc former from SkAne (Scania), the latter from Stockholm. u'here it was reared from Ernobius nigrinus Sturm (Col.
Anobiidae). The hitherto unkno*'n male of 7'.
punclipleuro (Thoms.) is also described.
Leglolosia gen. n.
Head rvider than thorax. Antennae, 11263,
inserted in the middle of face nearer to
median ocellus than anterior margin of clypeus. Funicular joints rvith one rotv of sensilla. Cl1'peus rvith straight anterior rnar'gin. I{andibles with 3+3 teeth. Occiput
not rnargined. Pronotal collar with sharp carina and prepectus large. Propodeum with- out median carina, plicae indistinct, nucha rvanting. Hind tibia rvith 1 spur. Fore rving rvith basal cell nude, only basal vein rvith feu'hairs, speculum large. Costal cell l'ith a
complete row of hairs on the underside.
Marginal vein as long as postmarginal vein and twice as long as stigmal vein.
'I'ype species: L. dinotiscoides sp. n.
'Ihe name of the new genus is taken from
"f'he Lord of the Rings" bl' J. R. R. Tolkien.
8
Legolasia dinotiscoides sp. n.
?. Heaa blue rvith a tint of green, thorax green rvith a tint of blue. Gaster brorvn rvith a faint tint of blue and green. Ilandibles and antennae fuscous, scapus 1'ellorvish brorvn.
Coxae of the same colour as thorax,
trochanteres, fore tibiae, tips of rnid and
hind tibiae and all tarsi except clau,joints yellorvish bro.lvn; all femora, mid and hind tibiae and clawjoints brorvn (fernora some-
rvhat dalker) . Wing veins pale vellorvish brorvn.
Head (fig. I ) large rvith reticulation.
Clypeus smooth (fig. 2 B) rvith anterior margin straight. Malar space longel than half the length of an eye. Eyes nearly circular, POL trvice OOL. Scape reaching mid ocellus,
lst funicular joint as long as pedicellus (fig.
2 C). Pronotal collar distinctly angled on each
Eπι.ri」sλr θj I,「
` 2
118 KARL―JOHAN HEDQVIST
Fig l L`yο′asiα `′inοιlscοfd`s gen n., sp. n., 9, 1)ody.e、cluding appendages.
side Thorax reticulated 、vith incoコnplete notauli Scutellunn with finer reticulation than nlesoscutum. 1)orsenum with the same reticulation as scutenum.Propodeum (fig・
2 A)retiCulated in the llliddle, callus with
fe、v scattered hairs. Spiracles large. Gaster
(fig・ 1)a little longer than thorax― 卜propo―
deunl.
Fore wing(fig・ 2D)with SOmewhat scattered hairs,stigma smaH.
Hind coxa bare dorsally(fig.2E).
6.UnknOwn.
Length:2.5 1nm.
Holotype: in coll.mea. Skine, Bosiё ‐ kloster,19/71973,leg K.― J.Hedqvist.
E″ι.riFsた′θ5 r,74 2
Paratype: 3 Q, in coll.mea, from the same locality.
Legolasia g. n. is similar to Dinofi.scus Ghesq. (fig. 2 A-D). The differences may be summed up as follows:
l. Clypeus punctated with two teeth or sinuated on anterior margin. Propodeum r*'ith a median carina. Funicular joints with at least two rorvs
of sensilla. Hind coxae (fig. 2 F) dorsalll' with many hairs . . Dinotiscus Ghesq.
-. Clypeus smooth with anterior margin straight.
Propodeum without median carina. Funicular joints rvith only one row of sensilla. Hincl
:::t: 11* : l1' T:: ill'i;*,.;;;,; s;.; ;
Trgchnosoma ernobii sp. n.
?. Dark blue with mouthparts brownish.
Antenna: scape blue with base yellowish brown, pedicellus blue and the rest of antenna brown. 'Iegula and rving base
1'ellorvish. Legs: coxae of the same colour as thorax, fore tibia, trochanteres and tarsus
dark yellorvish brown, base and apex of mid and hind tibiae and tarsi except clarvjoints pale -vellowish brorvn. Mid and hind tibiae and clarvjoints brown, all femora darh hrolvn rvith a tint of blue. Gaster with a golden
band on posterior' prart of the segments. Wing veins brorvn.
6. Unknorn'n.
Length: 3.5 mm.
Holotype: in coll.mea, Uppland, Stockhohn
l5l2 1964, leg. K.-J. Hedqvist. Reared from Ernobius nigrinus Sturm (Col. Anobiidae) living in shoots of Pinus cembra.
T. ernobii sp. n. is similar to 'I'. pttt'tcti- pleura (Thoms.). The differences mav be summed up as follorvs:
l. Dorsellum reticulated. Propodeum (fig. 4 A)
finely reticulate. Speculum large. Gaster
elongate, narro\\'. . . 7'. punctipleura (Thoms.)
-. f)orsellum smooth. Propodeum (fig. a B)
more coarsely reticulate (Iarger meshes) .
Speculum with scattered hairs. Gaster elon-
::::'::: :'::: :'t:::l' :T"'::::it1.; "
TWO NEW PTEROMALIDS F'ROM SWEDEN 119
B
ヽ ´
――
Fig. 2. .{-E Legolasia dinotiscoides Ben. n., sp. n.
- A. Propodeum, B. Clypeus, C. Antenna, Part of fore rving, E. Hind coxa.
- F. Dinofiscus aponius (Walk.) Q, hind coxa.
Ｄ
．つ E“′.r,″sた, ,5 ゴθrJ
′′づ′´
´′
´ ′ ´″
・ ・ ´ ′ ・ ″ 一一一
120 KARL‐JOHAN HEDQVIST
Fig. 3. A――D Dinοfiscas a〃 οniIIS Head in frontal view.
E"ι.rl」sI″.95・ゴ974 2
トー
、
﹁
ノ
(\Yalk.) 9. - A. Whole insect, B. Antenna, C. Propodeunr, D.
l'ig. 4. -\. Trgchnosonta punctipleura
!. propodeum.
- B. I. ernobii sp. n.
dttun.
TWO NEV/PTEROMALIDS FROⅣ I SWEDEN 12l
T rg chnosome punctipleura (Thoms.) Male, not described as yet, is similal to female but has more elongate funicular joints rvith many sensilla and clava elongate and narro\v-
Material of 7'. punctipleura (Thoms.) seen
flom Srveden:
(Graham 1957 has examined the speci- mens in coll. Thomson, Lund, and selected a lectotype.)
S k i n e, Ahus, 2rl7 t96O (l?), leg. K.-J.
Hedqvist. D ala rna, Leksand, Rtissjo- berget, 15/12 1961 (19, l6) leg. B. Ehnstr6m, reared from Magdalis sp. on Pinus siluestris.
References
GRAHAM, \{. W. R. DE V. 1957. Two new genera
of Pteromalidae (Hym., Chalcidoidea) based
upon material in the collection of C. G.
Thomson.
- Opusc. ent. 22: 137-142.
- 1969. The Pteromalidae of North-Western
Europe (Hymenoptera : Chalcidoidea) .
Bull. Br. Mus. nat. Hist. (Ent.) Suppl. 16:
l-908.
HEDevISr, K.-J. 1963. Die Feinde der Borken-
kiifer in Schweden. I. Erzwespen (Chalci-
doidea).
- Stud. forestal. suec. no. ll: l-
176.
(Thoms.) Q, propo-
E″′ r,ごsたr 95 rθ74 2
