The colours of this insect appear to have been faded. Head red brown, having on the top a small moveable horn, like a bristle, which the insect can raise at pleasure. Eyes dark. Thorax and abdomen dark brown. Anus white. The ends of the anterior wings are red brown; from whence, to the shoulders, they appear of a dead black, spotted with small white spots; but when the insect was living, probably the black part was of a fine mazarine blue. The external edges of the posterior wings are transparent; the abdominal edges white, and the middle part black, spotted with white, like the superior. Breast, beak, and legs, red brown. Abdomen, on the under side the same, being edged with scarlet. This insect has a white substance issuing from the anus resembling the downy part of a feather, or that which joins the quill.--Add. vol. 2. {76}SCOLIA? MUTILLÆFORMIS. Plate XXXVII. fig. 4. ORDER: Hymenoptera. SECTION: Fossores? FAMILY: Scoliidæ? GENUS. SCOLIA? _Fabr. Latr._ Sphex, _Linn. Drury_. SCOLIA? MUTILLÆFORMIS. Nigra, capite thoraceque fulvo pilosis, alarum apicibus fuscis. (Long. Corp. 7½ lin.) SYN. Sphex mutillæformis, _Drury_, _App. vol._ 2. HABITAT: Senegal. Head and thorax red brown, and hairy. The former furnished with two jaws, and tongueless. Eyes and antennæ black, the latter shorter than the thorax. Wings transparent; the anterior being cloudy at their extremities, and along the anterior edges. Abdomen, and hinder part of the thorax, black and hairy. All the legs full of bristles; the hinder ones having two long spines at the tarsi and tibial joints. One of the sexes is much larger than the other. Mr. Kirby (Monographia Apum Angliæ, Vol. II. p. 377.) has given this figure as a synonym of Andrena thoracica. This can however scarcely be correct, for not only does the locality given by Drury seem sufficiently to indicate a species distinct from our English insect, but the colour of the head is also different. Moreover, it appears to me that the description given by Drury, united to the curved antennæ which appear to be faithfully represented in the figure, and especially the character of the legs, are evidently intended for a fossorial rather than a melliferous Hymenopterous insect. LEPISMA COLLARIS. Plate XXXVII. fig. 5. ORDER: Thysanura, _Leach_. Aptera, P. _Linn._ FAMILY: Lepismidæ. GENUS. LEPISMA, _Linn._ LEPISMA COLLARIS. Obscure plumbea, fasciâ collaris apiceque abdominis argenteo-niveis, caudâ triplici villosâ. (Long. Corp. cum seta interm. 12 lin.) SYN. Lepisma collaris, _Fabr. Ent. Syst._ 2. 64. _No._ 5. Lepisma saccharia, _Drury_, _App. vol._ 2. (nec _Linn._) HABITAT: Antigua (_Drury_). "In Americæ meridionalis insulis" (_Fabr._).