Lygæus crenulatus, _Fabr. Ent. Syst._ 4. 144. 33. _Syst. Rh._ 250. 11. (Alydus cr.) HABITAT: Antigua. Head small and slender; red, striped with black. Eyes round and projecting. Antennæ black, and nearly the length of the insect; four-jointed. Thorax red, with black marks near the head, and another near the abdomen; the sides lying high and angular. Scutellum black and triangular. Hemelytra dark (almost black), the apical membrane being rather less so than the basal portion. Wings almost transparent. Abdomen above, blue along the centre, and red on the edges, indented with black; beneath red and brown, as are also the breast and sides. Legs black. Hinder thighs, having several spines on them. The proboscis extends to about the middle of the abdomen. This species is very closely allied to the insect figured in Plate 43, fig. 3.; nevertheless, their descriptions are placed very widely apart in the Systema Rhyngotorum. They appear to form a good subgenus, nearly allied to Hypselopus of Burmeister, which is confined to Africa. {102}EUMENES ABDOMINALIS. Plate XLV. fig. 2. ORDER: Hymenoptera. SECTION: Diploptera. FAMILY: Vespidæ, _Leach_. GENUS. EUMENES, _Fabr. Latr._ Vespa, _Linn. Drury_. EUMENES ABDOMINALIS. Fusco-fulva, antennis fuscis apice nigris, abdomine pyriformi petiolo longo nigro apice fulvo, segmento sequenti nigricanti. (Long. Corp. 10½ lin.) SYN. Sphex abdominalis, _Drury, App. vol._ 2. HABITAT: Jamaica. Head brown yellow. Eyes black. Antennæ brown, but near their extremities black, being the length of the thorax. Thorax brown yellow. Wings membranaceous, yellowish, and almost transparent, being folded longitudinally. Abdomen round, and longer than the thorax, brown yellow; the first segment (exclusive of the peduncle) black, with several black spots or streaks on the under side. It is attached to the thorax by a curved peduncle, considerably less than itself, being black; but at the tip yellow, and of the length of the thorax. Breast and sides black, streaked with brown. Legs brown yellow, furnished with a spine at the tips of the tibiæ, except the hinder ones, which have two. CENTRIS GROSSA. Plate XLV. fig. 3. ORDER: Hymenoptera. SECTION: Mellifera. FAMILY: Apidæ, _Leach_. GENUS. CENTRIS, _Fabr._ Apis, _Linn. Drury_. CENTRIS GROSSA. Aureo-viridis, nitida; antennis pedibusque nigris. (Magn. Bomb. terrestr.) SYN. Apis grossa, _Drury, App. vol._ 2. HABITAT: Jamaica. Head black, inclining to blue, with a mixture of green. Eyes large. Antennæ black, and shorter than the thorax. Tongue yellow, and secured within its brown case. Thorax shining, of a dark golden green, with a mixture of blue, having a few black hairs on it. Wings membranaceous and brown. Abdomen of the colour of the thorax, but underneath more of a mazarine blue. Breast the same. Legs hairy and black; posterior tibiæ more so than the others.