. Transactions and proceedings and report of the Philosophical Society of Adelaide, South Australia. picuously wider than long (not due to serrations orrami), this being at variance with all other brachelytrousMalacodermidae with exsertile vesicles. The species shouldperhaps have been regarded as the type of a new genus. PTINIDAE. Enasiba tristis, xxv., figs. 37 and Clark has taken, near the Swan River, several speci-mens of this species from nests of the twig-mound ant (Iridomyrmex com f era J. Theyvary in length from 35 to4 mm., and in colour frompiceous to deep shining black,
. Transactions and proceedings and report of the Philosophical Society of Adelaide, South Australia. picuously wider than long (not due to serrations orrami), this being at variance with all other brachelytrousMalacodermidae with exsertile vesicles. The species shouldperhaps have been regarded as the type of a new genus. PTINIDAE. Enasiba tristis, xxv., figs. 37 and Clark has taken, near the Swan River, several speci-mens of this species from nests of the twig-mound ant (Iridomyrmex com f era J. Theyvary in length from 35 to4 mm., and in colour frompiceous to deep shining black,with the legs more or less red-dish. They all have four smallshort yellow fasciae on the sub-basal impression of the pro-thorax : two marking the endof the median line, and one oneach side. The antennae arepeculiar, and from the side (, fig. 38) agree with Olliffsdescription, but from above theyEnasiba tristis, Oil. look very different (fig. 37). POLYPLOCOTES CARINATICEPS, n. Sp. PI. xxv., fig. , elytra, abdomen, and tip of antennae some-what paler than other parts. 255 Head opaque, and with dense punctures; with a narrowmedian line from antennae to base, from antennae to lip witha strongly elevated narrow ridge. Antennae rather short,first joint stout, second rather short, its base partly concealedby apex of first, third to seventh submoniliform, eighth andlinth indistinctly separated, at the base slightly wider thanseventh, the tip truncated. Prothorax about as long as wide,with a large deep excavation on basal two-thirds, an impressionconnecting the fovea with each side, a strong acute tooth oneach side near apex, with dense (sometimes punctate) striae,mostly converging to the excavation. Elytra subovate, basetruncate and very little wider than prothorax; with regularrows of distinct and rather small punctures. Mesosternumwith a narrow intercoxal process extending on to rather long and thin. Length, 1*5 mm. Hah.—Western Austr
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1878
