. The Cambridge natural history. Zoology. HYMENOPTERA CHAP. spiders. The species is said to be protected by a peculiar odour as well as by its sting; it is also stated that it disguises its edifice when completed by making it look like a dab of mud, and on one occasion " rays of mud were observed round the nest, even more exactly imitating a lump of mud thrown with some ; P. (Sceliphroii) bilineatus, formerly thought to be a variety of P. 'inadraspatanv-S, builds its nests in hedges and trees. Sub-Fam. 2. Ampulicides.—Prothorax long and a neck in front; chjpeus b
. The Cambridge natural history. Zoology. HYMENOPTERA CHAP. spiders. The species is said to be protected by a peculiar odour as well as by its sting; it is also stated that it disguises its edifice when completed by making it look like a dab of mud, and on one occasion " rays of mud were observed round the nest, even more exactly imitating a lump of mud thrown with some ; P. (Sceliphroii) bilineatus, formerly thought to be a variety of P. 'inadraspatanv-S, builds its nests in hedges and trees. Sub-Fam. 2. Ampulicides.—Prothorax long and a neck in front; chjpeus beak-like; four submarginal cells, the outer one being complete; metathorax elongate, the pos- terior part of the metasternum deeply divided to allow a perfect inflection of the abdomen. This is one of the smallest of the divisions of the Sphegidae, but has a very wide distribution, being represented in both the Eastern and Western Hemispheres. It is allied to the Sphegides, but differs by the prolongation of the neck and of the head, and by the articulation between the petiole and thorax being placed on the under surface of the body; the wing- nervures are said to be of inferior importance owing to their frequently differing in indi- viduals of the same species. These Insects appear to be rare in individuals, as well as few in species, and but little has been recorded as to their habits; but it is known that they live on cockroaches. Per- kins has given a brief sketch of the habits of Ampulex sibi- rica that is of great interest, but requires confirmation. He says that this Insect, in West Africa, enters apartments where cockroaches abound, and attack- ing one, that may probably be Male. four times its own size, suc- ceeds, after a struggle, in sting- ing it; the cockroach instantly becomes quiet and submissive, and suffers itself to lie lei] away and placed in confinement in some. Fid. 4i.—Am/in/' '• cnmpressa. East Please note that these images are extracted fro
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