li
166 OEDER—HYÍIENOPTERxV. FAMILY—PROCTOTRUPID^. SUB-FAMTLY—BETHYLLIDES. 167
SPECIES 9—PEISTOCEEA HCEMORßHOIDALIS.
PLATE XXX, FIG. 7.
Nigra, subtilitev punctata: abdominis dimidio postico rufo-fulvo; alis pallide lutescentibus fascia transversa
pone medium fusca; clypeo porrecto in lobos duos parvos conicos producto ; antennis mcdiocribus g-racilibus
fulvescentibus articulo basali obscuro ; collare mediocri antice rotundato, postice dilatato ; metatboracis dorso
spatio subquadrato basali ruguloso parum impresso, linca tenui media uotato, parte postica rotundata convexa;
pedibus nigris ; tibiis tarsisque anticis fuscis.
Long. corp. liu. 4 J ; expans. alar, autio. Hn. 71.
Habitat; Brasilia (Guerin-Meneville). In !Mus. Hopeiauo Oxouia;.
The mandibles are gradually dilated beyond tbe middle, and terminated by five nearly equal-sized conical
teeth (fig. 7 a). The maxillary palpi are long, setose, and pendulous ; the three basal joints thickest and nearly
equal in length; the three apical ones more slender, longer, and of equal length. The mentum is long, gradually
widened to the tip; the labial palpi long, 3-jointed, the last joint longest, gradually pointed to the tip.
The metathorax has a row of very short strias at the base; the nearly square central space is very finely granulóse
and opaque, depressed, with a slender raised longitudinal line outside of this space ; the sides of the metathorax
are transversely striolated with an impressed and punctured line, close to the lateral margins; the hind
part is roimded and convex. In these and other respects the species approaches E. Haüäaü.
A Brasilian insect in the Eoyal J\Iuseum of Stockholm, collected by P. Salilberg, agreeing in size with the
preceding, of which I consider it to be a variety only, has the head black, pohshed, and minutely punctured and
setose; the antennse pitchy black, setose, equal to the thorax in length, with the tip of the basal joint and the
second joint dark chestnut-coloured ; the thorax black, punctm-ed, and setose ; the abdomen smooth and glossy,
with the three basal segments black, the remainder fulvous, the fore legs black, with the tip of the tibi® and
tarsi dark brownish-chestnut; the four hind legs black, with the tarsi pitchy ; the fascia of the fore wings is
broader than in the preceding, with a pale spot at the apex of the postero-discoidal cell, followed by two adjacent
spots close beyond the cell; there is also a hyaline spot behind the base of the stigma. The clypeus is
only subemarginate in the middle of the fore margin, and the metathorax has the quadrate space ill defined at
the sides, the surface finely rugose, with a row of short striolas at the base.
GE.N'US—MESITIUS.
(Spinola, Compte rendu Hjmenopt. de Para, 1846; Jlem. Acad. Turin, Ser. ii. t. 13, i8gi.)
Antenuffi in utroque sexu 13-artieulatiE ; mesothorax parapsidibus bene determinatis; metanotum angulis
posticis valde prominentibus, dorso plnries carinato; abdomen segmento secundo máximo, segmentis apicalibus
(insectis desiccatis), interdum in marginem posticiun sinuatum contrahentihus ; al¡E an tiefe cellula radiali longa
ápice incompleta, cellula nulla discoidali.
SYS". : Hetei'occelia. Dahlbom, Hym. Europ. ii. Chrysid. p. 21, 1854.
Isoh'achium. Förster {1857).
Scleroderma (pars). A. Costa, Annuar. Mus. Napoli.
Epyris (pars). Westw. MS. olini; Lucas (Algeria).
SPECIES 1—MESITIUS CARCELII. Westw. MS. {Epyris C.)
PLATE XXXI, Era. 9.
Niger, nitidus, punctatus, griseo-setosus : antennis subbrevibus piceis, articulo basali ápice rufescente; capite
convexo; collari magno rufo, punctato, medio canaliculate; teguHs rufis ; metano to basi serie striaruni brevissimarum,
dorsoque tricarinato, carinaqne utrinque intra marginem lateralem in spinam anguli postici terminata ;
interstitiis transverse striolatis ; pedibus rufis ; tarsis obscurioribus ; alis fuscis, fascia media hyalina.
Long. corp. lin. 2f ; expans. alar, antic, lin. 4.
Habitat ; in Oriente (Cared). In Mus. Paris, et Hopeiano Oxonice (mecum communicavit D. Sichel).
SPECIES 2—MESITIUS NIGPJVENTEIS.
(Dalilhom, Hym. Europ. ii. Chrysicl. p. 22, pi. I, figs, ig, 16; Epyns piAclidlus, Lucas, Ins. Algerie.)
PLATE XXXI, FIGS. 10 a, 6, c, il.
Pra;cedenti simillimus, differt mesonoto toto rufo ; collare rufo ; pedibus nigris ; tarsis piceis.
Long. corp. lin. ; expans. alar, antic, lin. 4.
Habitat ; Algeria. In Mus. Paris, et Hopeiano Oxoniie (mecum communicavit D. Sichel).
Varietas pedibus anticis cum coxis omnibus rufis.
E Sicilia. In Mus. Hopeiano Oxonise (mecum communicavit D. Blondeau e coll. antiqua Latreillii.)
The details of this genus, given in pi. X, are taken from this variety. The mandibles are oblong, with
the apex oblique and but slightly sinuated (fig. 101) ; the maxillse are terminated by three ciliated membranous
lobes, with six-jointed maxillaiy palpi, the three basal joints gradually increasing slightly in length, the three
terminal ones longer and subequal (fig. 10 e) ; the labial palpi composed of three nearly equal joints (fig. 10 d) ;
the antennce of moderate length, the first joint long, the second and third slightly longer than the fourth ; the
ungues of the tarsi are slender, nearly straight, with a very small tooth in the middle of the inner edge.
SPECIES 3—MESITIUS RUFITHOEAX.
PLATE XXXI, FIG. 11.
Niger, nitidus, punctatus : clypeo, mandibulis, antennarum basi coxisque rufo-piceis; thoraee toto rufo;
abdomine nitidissimo segmentorum apicibus piceis; pedibus nigris, geniculis tarsisque piceo-rufis; alis fere
obsoletis, metathoracis medium attingentibus ; clypeo porrecto, in medio carinato, carina longitudinaliter impressa,
apieeque dilatato (fig. I I a), facie antice biangulata ; antennis intra ángulos insertis; mandibulis 4 dentatis,
dente externo vaUdo, reliquis obtusis (fig. H i ) ; palpis maxillaribus articulis duobus basaHbus mcdiocribus
Eequalibus, articulis 4 ultimis longioribus fequalibus setosis ; mento anguste ovali, apice setoso, angulis anticis in
scapum minutum desinentibus, in quos insident antennai 13-articu]ata3, articulo secundo parvo, tei-tio sequentibus
parum longiori, quarto ad apicem brevibus (fig. I1í¿); metanoto dorso tricarinato, carinis duabus extends
panilo arcuatis lineaque abbreviata utrinque interjecta ; interstitiis transverse striolatis ; angulis posticis rectis
haud porrectis.
Long. corp. lin. 3.
Habitat ; Italia (?). In Mus. Hopeiano OxoniiE, Mecum communicavit Dom. March. Spinola.
SPECIES 4—MESITIUS HALIDAII.
PLATE XXXI, FIG. 8.
Niger, robustus : capite rugoso, vertice linea tenui impressa longitudinali ad ocellos extensa ; antennis alis
longioribus, nigris, articulo secundo parvo, reliquis I I crassioribus longitudine subffiqnalibus, apicalibus attenuatis;
collare transverso rugoso-punctato, linea impressa longitudinali media; mesonoti scutello pnnctis duohus profundis
; metanoto transverso quadrato, angulis posticis porrectis ; dorso tricarinato carinis externis arcuatis ; basi
striolis brevibus et interstitiis striolis transversis notato ; abdomine brevi ovato nitidissimo ; pedibus nio-ris
geniculis tarsisque piceis; alis fuscis, basi, fascia media haud bene determinata apieeque pallidioiibus. (Mas.)