Famity—SIRICID A. 119 
ORYSSUS BATESIANUS. 
Prats XXII, Fie. 3. 
Chalybo-niger: capite et thorace subeneis punctatissimis punctis minoribus ; antennis pedibusque nigris, 
trochanteribus femoribusque pedum 2 posticorum fulvo-rufis, his subtus ad basin nigris; alis fuscis stigmate 
nigro, fascia indistincta substigmaticali, apiceque hyalinis. 
Long. corp. lin. 6; expans. alar. antic. lin. 73-8}. 
Habitat; Amazonia, Ega (D. Bates). In Mus. Britann. 
O. bifasciato proximus, at punctis multo minoribus et in thorace remotioribus segmentoque secundo abdo- 
minis linea tenui longitudinali levi insigniori ; caput valde rugosum (fig. 3, antice visum) carina media trans- 
versa alteris duabus curvatis connexa; antenne nigre 10-articulate articulo nono reniformi depresso, apice 
obliquo; ultimo minuto; thorax nigro-wneus nitidus, punctatus; abdomen chalybeum crebre punctatum seg- 
mento secundo linea media tenui elevata nitida basali, spatio parvo elongato-obtrigono, levi nitido, ad medium 
segmenti extenso; segmentis reliquis utrinque albido-villosis ; alw fusce, violaceo nitide, antic versus costam 
obseuriores ; venis nigris, fascia obsoleta pallidiori pone medium ale nubilaque alba triangulari apicali; ale 
posticee omnino pallide fusce ; pedes nigri, tibiis anticis dilatatis, trochanteres et femora pedum posticorum 
fulvo-rufa, his subtus ad basin macula fusca notatis; tibie postice denticulate compresse. 
ORYSSUS FULVO-STIGMA. 
Puate XXII, Fie. 4. 
Niger, punctatissimus: capite eneo parum tincto, vertice serie duplici tuberculorum ; abdominis segmentis 
intermediis utrinque albido notatis; antennis pedibusque nigris, femoribus duobus posticis rufis; alis hyalinis, 
anticarum stigmate fulvo, fascia lata fusca ante alteraque pone medium fuscis; alis posticis dimidio apicali 
obscuriori. 
Long. corp. lin. 5; expans. alar. lin. 7. 
Habitat; Amazonia, Ega (D. Bates). In Mus. Hopeiano Oxonie. 
This species, in several respects, so closely resembles O. Batesianus (inhabiting also the same locality on the 
Amazon River) that it may possibly ultimately prove to be a variety thereof; the colour, however, of the body, 
and especially of the wings and stigma, seem to indicate it as specifically distinct. The face has two curved 
raised lines extending from the lower edge of the eyes towards the middle of the face, where they are united by 
a slender transverse carina, behind which are two rows of tubercles. The thorax is black, with a slender central 
slightly raised, and polished longitudinal line. The basal segment of the abdomen has a fine row of short 
striole at the base, the remainder being strongly punctured with a central raised line; the third, fourth, and 
fifth segments are marked on each side with a small whitish spot. The legs are thick and black, the two 
posterior femora red, the hind tibiz externally serrated. The fore wings have a broad fascia before, and another 
beyond the middle, the base being hyaline with two small oblong dark dots; the veins in the central hyaline 
part of the wing are colourless, and the stigma is fulvous. 
ORYSSUS MACULIPENNIS. 
(Smith, Journ. of Proe. Linn. Soe. vol. iii. p. 177.) 
Prats XXII, Fie. 5. 
O. niger punctatus: pedibus ferrugineis ; alis fuscis fascia hyalina ante cellulam marginalem sita. 
Long. 53 lin.; expans. alar. lin. 7%. 
Habitat ; Aru (Wallace). In Mus. Saunders. 
Black, head rugose, front coarsely so, with a row of transverse tubercles running from the vertex along the 
inner orbits of each of the eyes, and crossing the front at half their length; the cheeks with a cinereous down, 
and a line of silvery white pubescence or down along the outer orbits of the eyes. Thorax coarsely punctured ; 
the mesothorax with a central longitudinal smooth elevation; wings fuscous, with a broad transverse hyaline 
fascia before the base of the marginal cell; the tips of the wings hyaline. Legs ferruginous, with the coxe and 
