116 ORBEE—IIYMENOPTERA.
SPECIES 7—SIEEX JMELANCHOLICTJS.
PLATE XXI, FIG. 8.
Niger, ]>unctatus : capite tlioraceqne nigosis ; abdomine nitido ; capite macula utrinqnepone oculos, lateribiisque
serratis collaris albidis ; pedibus nigris lemoribus qimtuor anticis rufis ; alis liyalinis, nubila parva pro]ie
angulum posticuni alteraque versus basiu marginis interni, femoribus duobus posticis prope basin constrictis et
parnm contortis (constrietioue articulum simulante) ; segmento ultimo abdominis obeonico, piano, in spinulam
parvam terminato. (Mas.)
Long. corp. lin. l l j ; expans. alar, antic, lin. 16.
Habitat ; America Septentrionalis. In Mus. liopeiano Oxonia:.
The unique male of this species in our Collection is closely allied to the male of SireiV spectrum, which forms
a second section in the genus in Dr. Klug's monograph, intermediate between the genuine Sirices and Tremei,
differing from each in the number of joints in its maxillary and labial palpi. Its general characters agree, however,
so entirely with those of Sirex (except in the greatly elongated ovipositor), that it does not appear desirable
to separate it subgenerically from the rest. The head is convex and sloping, with a central and two lateral
impressions in the hinder part. The thorax is coarsely granulated, the collar quadrate and transversely grooved,
the lateral margins denticulated. The abdominal segments have the basal portion of each depressed, lea^nng the
sides and hinder margins somewhat raised ; the terminal segment is obconical, slightly serrated at the sidest and
terminated in a small point. The mngs are hyaline, and almost colourless ; the large second submarginal cell is
pedunculated at its base (as it is also iu S. spedrum) ; the vein forming the hind margin of the^long basal
subcostal cell does not emit a small branch near its extremity. The legs are black, with the femora entirely red,
the hinder pair being more pitchy on the upper part.
Gehus—TEEMEX (Jnrine) XYLOTERUS. Hartig^.
TEEHEX PAIiDOEA.
PLATE XXI, FIG. 9.
Niger,^ rugoso-punctatus : capite nitido, antennis longitudine thoracis 14-articulatis ; abdomiue purpureo vix
tincto subnitido, crebre punctato, segmento ultimo obconico lateribus serriilatis, apice in spinam brevem tenuem
producto; pedibus nigris, posticis compressis j éilis fuscis, ponG mediuiiL prtEsertiin vGrsus stiorna obscurioribus
cellulis, ante medium alarum subflavescentibus, vena cellulam basalem subcostalem postice claudenti ramulum
nullum, versus apicem, letrorsum emittente ; mandibulis palpisque nigris.
Long, coi-p. lin. 13 ; expans. alar, antic. lin. 20.
Habitat ; India Orientalis. In Mus. liopeiano Oxonias (olim nostr.)
TEEMEX MAUEUS.
PLATE XXI, FIG. 3.
Piceo-niger, mgoso-punctatus : abdomine lavi depresso crebre et minute punetato ; antennis nigris 15-articulatis,
longitudine thoracem a?quantibus, articulis duobus apiealibus rufescentibus ; segmento ultimo thoracis
et tribus basalibus abdominalibus utrinque ad basin fulvo maculatis ; pedibus piceis, tibiis 4 posticis tarsorumque
articulo Imo, ad basin fulvo-notatis ; capite infra pone oculos lateribusque mesosterni obscure testaceis, segmentis
ventralibus abdominis obscure rufis; alis fuscis, cellula Ima elongata marginali et vena mediana e basi ad
> Van Heyden (Berlin Ent. Zeitschr. i868, p. 22J) has changed the name of ' Xyloterus,' proposed by Hartig in 1837
(but already preoccupied for a genus of Bostricliida; by Erich.sou iu 1836), to that of Xyloccematiuui, inchidiiig iu the genus
A. 7nagrus,Juscicornis Eabr. and Columba 'Sahv.=Pennsylvam.ica De Geer. Both are, liowevcr, syiiouymous with Tre/mex
Jmine. Norton (Trans. Amer. Ent. Soc. ii. p. 366}, in a memoir on the North American spccies of Ory.iisus, Xiphydria,
Urocerus ( = Sirex) and Tremex, has separated Treinex Cubemis and latitarsis as a subgenus named Teredon, the antenna)
being 5- or 6-jomted, and the hind tarsi dilated.
FAMILY—SimCID^. 117
medium alie nigricantibus; segmento ultimo abdominis in spinam acutam brevem lateribus serratis producto, (in
individuo delineate, genitalia maris exserta sunt, et in figura apparent).
Long. corp. lin. 13; expans. alar, antic, lin. 19J.
Habitat; America Septentrionalis (E. Doubleday). In Mus. liopeiano Oxonia?.
TEEMEX EUGICOLLIS.
PLATE XX, Eio. 9.
Capite et thoraee ajueis, punctato-rugosis, metanoti parte postica fulva linea nigra media; abdomiue purpureo
chalybiEO lateribusquc segmentorum quinque basalium fulvis; alis fuscis chalybaio nitidis; autcnuis nigris
20-artieulatis, pedibus 4 anticis albidis tarsorum articulis 4 apicalibus nigris ; pedibus 2 posticis nigris latis,
femoribus fulvis. (Mas.)
Long. corp. lin, 8; expans. alar, antic, lin. 13.
Habilat; Insulas Philippinenses (Digallorin prope Luzon, dieb. 18 et 20 .Tun. 1860, D. Semper). In
Mus. Semper.
Head and prothorax a;neous black ; head convex, with small but deep punctures ; collar i-ugose, with small
conical tubercles; on the mesothorax these tubercles are fine. The metathorax is brownish black, smooth, ihe
hind part with a luteous band divided by a brown central longitudinal line; the abdominal segments are rich
purple, chalybeous on the hind margin, very slightly punctured except the terminal joints, which are rugose;
the basal segments have a luteous spot on each side, extending nearly the whole length of each joint. The four
fore legs are luteous, the tip of the first and the remaining joints of the tarsi pitchy brown ; the two hind legs
are black, compressed, the femora fulvous, the basal joint of the tarsus broad. The wings are rich brown, with the
veins darker brown, strongly glossed with pinkish purple; the body beneath is black, with the thoracic portions
ajneous. The antenna; are as long as the he d and anterior half of the metathorax: they are 20-jointed, and the
first joint is pitchy, the second and third 1 !;eel-grcen, polished, the fourth and following dark'purplish-black,
and compressed. The length of the fore an ng equals that from the front of the head" to the middle of the
fifth segment of the abdomen.
This insect is nearly related to several other species of the genus from the Eastern Islands, of which the
following are the characters:—
TEEMEX INSIGNIS.
(Smith, Proc. Liiin. Soc. iii. p. 178.)
Nigro-purpureus ; abdominis faseiis basalibus albis ; alis nigris, cupreo nitentibus.
Long. corp. (oviductu exclus.) 9-11 lin.; expans. alar, antic, lin. 18i.
Habitat; Aru (Wallace). In Mus. W. W. Saunders.
Obscure steel blue, with shades of green, purple and violet; antenna; 16-jointed ; the head and thorax
punctured; the prothorax mth an oblique, smooth, shining space on each side. "Wings very dark brown,
with a brilliant coppery eflulgence. The base of the abdomen opaque, velvety, purple-black; the first segment
with a narrow, transverse, cream-coloured fascia in the middle, the second very narrowly whitish at its base;
the rest of the abdomen is highly polished, and has a scattered, short, Ijlack pubescence. The terminal segment
of the abdomen is conical, acute at the tip, with the sides serrated. "
Closely resembles Tr. pmpiireipennk Westw., having, like it, 16-jointed antenna;.
TEEMEX PUEPUEEIPEXNIS.
Niger, purpureo et coeruleo tinctus : capite collare et mesonoto punctatis, parte postica thoracis opaco Itevi,
nigro, punctis tribus albis; abdomine nitidissimo la;vi, segmento basali parum oeneo tincto, apicali purpureo
tiiicto ; antennis I6-articulatis articulis apicalibus compressis ; pedibus anticis ca;ruleo-nigris ; alis nigris purpureo
nitidissimis ; mandibulis extus hirsutissimis ; segmento ultimo abdominis supra depressione magna ovali
punctata, apice conico acutissimo, tuberculo parvo utrinque instructo.
Long. corp. lin. 13 ; expans. alar, antic, lin. 23.
Habitat ; Malacca (Lorquin), In Mus. Jard. des Plantes, Paris (olim Coll. Sichel).