Plate XLIV. fig. 5. ORDER: Hymenoptera. SECTION: Fossores. FAMILY: Scoliidæ. GENUS. SCOLIA, _Fabr._ Sphex, _Drury_. SCOLIA FOSSULANA. Atra, thorace flavido hirto, abdomine fasciis quatuor flavis, intermediis dentatis. (Long. Corp. 1 unc.) SYN. Scolia fossulana, _Fabr. Syst. Piez._ 242. _No._ 18. Sphex plumipes, _Drury, App. vol._ 2. HABITAT: New York. Head pale yellow in front, black on the top and hairy. Antennæ black, and shorter than the thorax. Neck hairy, lemon-coloured. Thorax black, and covered with yellow hairs. Wings dark brown, almost transparent; not folded or doubled together. Abdomen black underneath and lemon-coloured above, where it has three black lines crossing it, two of them being broadest in the middle. Anus and breast {99}black. Legs black and hairy; the hinder ones being furnished with two remarkable long spines at the tips of the tibiæ. Tarsi, particularly those of the hinder legs, furnished with very strong hairs, or rather bristles at each of the joints; pale yellow-coloured. I should have retained the specific name given to this insect by Drury, on account of its priority, but it is so inappropriate, not only being applicable to one sex alone, the female, but the spines on the fore legs being found throughout the genus, as well as in nearly all the burrowing Hymenoptera. Fabricius has incorrectly referred this figure to his Scolia radula, which has a spotted thorax. PELOPÆUS CÆMENTARIUS. Plate XLIV. fig. 6. Imago--fig. 7. Cocoon--fig. 8. Imago taken out of the Cocoon. Plate XLV. fig. 8. Nest--fig. 9. Section of the Nest--fig. 10. two Cocoons exposed. ORDER: Hymenoptera. SECTION: Fossores. FAMILY: Spegidæ. GENUS. Pelopæus, _Latr. Fabr._ Sphex, _Linn. Drury._ PELOPÆUS CÆMENTARIUS. Abdomine petiolato nigro, segmento primo (excl. pedunc.) lunulâ flavâ thoraceque punctis flavis, pedibus flavis posticorum femoribus apiceque tibiarum nigris. (Long. Corp. 1 unc.) SYN. Sphex Cæmentaria, _Drury, App. vol._ 2. Pelopæus lunatus, _Fabr. Syst. Piez._ 203. HABITAT: Jamaica, Antigua, St. Christopher's (_Drury_). "In America insulis, in India orientali frequens." (_Fabricius_, incorrectly?) Head black and hairy. Antennæ black, basal joint yellow. Thorax black, with short hairs on it, but next the head yellow, having a yellow spot at the base of each wing, and another next the abdomen. Wings brown, and almost transparent; lying flat, not folded. Abdomen black and round, nearly as long as the thorax; basal segment (exclusive of the peduncle) yellow; pointed at the tip, and armed with a retractile sting. Peduncle very slender, black at top, and yellow underneath; being nearly the length of the thorax itself. Breast black. Fore and middle legs black next the body, but from the middle of the thighs yellow. Hinder thighs and lower parts of the shins black, the remainder yellow. Claws black.