OCR Text |
Show 1901.] HYMENOPTERA FROM NEW BRITAIN. 229 is received higher up than usual, in the upper fourth of the nervure. ENICOSPILUS NIGRINERVIS, sp. nov. Lute/us; fiagello antennarum abdominisque apice late nigro-fuscis ; cdis hgalinis, nervis stigmateque nigris. $ . Long. 17-18 mm. Scape of antennae luteous ; the rest of it blackish, lighter, more fuscous in colour towards the apex ; it is longer than the body. Head pale yellow; the clypeus darker, more rufous in tint. Mandibles yellow, with black teeth. Thorax luteous, the pleurae more yellowish, paler in tint. Scutellum strongly keeled laterally; its apical half is closely, irregularly, transversely striated, and is bordered behind by a distinct transverse keel which unites with the lateral ones. The base of the median segment behind the keel is smooth and is obscurely shagreened at the apex laterally ; the rest of it is closely distinctly rugose, the rugosities in places forming almost reticulations. The lower half of the mesopleurae is closely, longitudinally, irregularly striated ; the lower part of the meta- irregularly, obliquely, and not very closely striated. Wings hyaline ; the costa, nervures, and stigma black ; the basal abscissa of the radius is thickened, becoming thinner on the apical third ; the apical abscissa is also thickened ; there is only one horny point; it is large, rounded on the lower side ; the basal half above is straight and oblique, the apical half becomes gradually narrowed towards the apex. The abdomen is three times longer than the head and thorax united ; the basal two segments are coloured like the thorax ; the others are deep fuscous-black. The apical abscissa of the radius is roundly and broadly curved upwards ; the transverse median nervure is received distinctly in front of the transverse basal, and not behind it or interstitial as usual; the first abscissa of the radius has the basal two-thirds thickened ; the middle third is curved upwards. PlMPLINI. EHYSSA FULVA, sp. nov. Lutea; capite pleurisque fiavis ; ficigello antennarum, mandibulis verticeque nigris; tar sis posticis fuscis; alis hgalinis, macula substigmatali fusca. 8- Long. 17 mm. Scape of antennae luteous, bare, smooth, and shining; the flagellum closely covered with stiff, short, blackish pubescence. Head pallid yellow ; the vertex with a broad black stripe between the eyes, enclosing the ocelli. The face is punctured in the centre below the antennae ; the rest of it and the clypeus smooth and shining. The clypeus is distinctly separated from the face; the foveae are large, deep, aud are united by a narrow curved furrow; the apex of the clypeus is transverse and bears three short nipple-like teeth, the central is smaller than the lateral. PROC ZOOL. Soc-1901, VOL. I. No. XVI. 16 |