therefore, to fall back upon immigration as the probable source of the Humming-Bird Hawk-moth in Britain. Except the more northern portion, this species is distributed over the whole of the Palæarctic region, including India, China, Corea, and Japan. [Illustration] Pl. 20. 1. NARROW-BORDERED BEE HAWK-MOTH: _caterpillar_. 2, 2a. BROAD-BORDERED BEE HAWK: _caterpillar and chrysalis_. [Illustration] Pl. 21. 1. HUMMING-BIRD HAWK-MOTH. 2. BROAD-BORDERED BEE HAWK-MOTH, _male_; 3 _female_. 4. NARROW-BORDERED BEE HAWK-MOTH, _male_; 5 _female_. {53} THE BROAD-BORDERED BEE HAWK-MOTH (_Hemaris fuciformis_). We have but two kinds of Bee Hawk-moths in our islands, and the present species (Plate 21, Figs. 2, 3) is easily recognized by the broad reddish brown borders of the wings and especially those on the front pair, which also have a black bar at the end of the cell. When freshly emerged the wings are not clear and transparent, but covered with greenish-grey scales, which are so loosely attached that they are lost after the moth's first flight. The egg is bright green, and is laid on the underside of a leaf of honeysuckle. When very young the caterpillar is yellowish white, but when full grown (Plate 20, Fig. 2) it is whitish green on the back, green on the sides, and reddish brown beneath. Along the middle of the back there is a darker, much interrupted, green line and a yellow line on each side of it; the spiracles are reddish, the head is dark green, and the horn reddish brown merging into violet at the base, and brown at the tip. Sometimes there are blotches of reddish brown on the sides. When quite mature and ready to assume the chrysalis stage the caterpillar changes in colour to purplish brown. At all times it is difficult to detect, as its colour and markings agree so well with the stems, stalks, and leaves of the food plant. If a leaf of honeysuckle having round holes on each side of the midrib be noticed, examination of the underside of that leaf may reveal a young caterpillar of this species. {54} The common honeysuckle, or woodbine (_Lonicera periclymenum_) is the usual food, but in confinement the caterpillars will eat the foliage of the cultivated kinds of _Lonicera_, and, it is stated, even snowberry (_Symphoricarpus racemosus_). In rearing it will, however, be safer to supply them with the ordinary food wherever this is to be obtained. July and August are the months in which to look for them. The chrysalis is blackish brown, the skin is rather roughened, and the ring divisions are paler brown. It is protected by a silken cocoon, the interior of which is smooth, and the exterior coated with earth, etc.