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- Neglecta Butterfly
Larva Feeding on Central Florets of Actinomeris, and Guarded by Ants. - Pulex irritans, female
- Evania appendigaster
- Insect Frame 2
- Chiasognathus Grantii, under side
Chiasognathus Grantii, under side - Drassidæ
A large family of spiders, varying greatly in shape, color, and habits. Most of them are dull colored, and live under stones, or in silk tubes on plants, and make no webs for catching insects. Their eyes are small, and arranged in two rows on the front of the head. Their feet have two claws and a bunch of flat hairs. The spinnerets are usually long enough to extend a little behind the abdomen. The figure is a Drassus, and the eyes as seen from in front. - Chiasognathus Grantii
2 Chiasognathus Grantii, under side 3,4 Maxillae with lacinia and palpus 5 Mentumprocesses of labium and palpi, under view 6 Base of anterior femora 7 Mentum, labium, &c. upper view 8 Labium with processes amd palpi, lateral view - Insect Frame 4
- Pharyngeal syringe or salivary pump of Fulgora maculata
Accessory to the salivary apparatus there is on the ventral side of the head, underneath the pharynx, a peculiar organ which the Germans have called the "Wanzenspritze," or syringe. The accompanying figure of the structure in Fulgora maculata shows its relation to the ducts of the salivary glands and to the beak. It is made up of a dilatation forming the body of the pump, in which there is a chitinous piston. Attached to the piston is a strong retractor muscle. The function of the salivary pump is to suck up the saliva from the salivary ducts and to force it out through the beak. - Chiasognathus Grantii, upper view
Chiasognathus Grantii, upper view - Spiderweb
The simple nests and tubes that have been described are made by spiders, most of which spin no other webs. The larger and better known cobwebs for catching insects are made by comparatively few species. On damp mornings in summer the grass-fields are seen to be half covered with flat webs, from an inch or two to a foot in diameter, which are considered by the weatherwise as signs of a fair day. These webs remain on the grass all the time, but only become visible from a distance when the dew settles on them. Figure is a diagram of one of these nests, supposed, for convenience, to be spun between pegs instead of grass. The flat part consists of strong threads from peg to peg, crossed by finer ones, which the spider spins with the long hind-spinnerets - Stages of the Diamond-back Moth
a, Diamond-back Moth (Plutella cruciferarum) b, young caterpillar, dorsal view c, full-grown caterpillar, dorsal view d, side view e, pupa, ventral view. From Journ. Dept. Agric. Ireland, vol. I - Stethaspis suturalis
Stethaspis suturalis - A. Head of a typical Moth
showing proboscis formed by flexible maxillae (g) between the labial palps (p);c, face; e, eye; the structure m has been regarded as the vestige of a mandible. B. Basal part (b) of maxilla removed from head, with vestigial palp (p). Magnified. - Cicindela tuberculata - Larva
- Cicindela tuberculata
- Dryocora howittii
Dryocora howittii - Dryocora howittii - Larva
Dryocora howittii - Larva - Colymbetes rufimanus
- Dorcus punctulatus
Dorcus punctulatus - Pterostichus opulentus - Larva
- Stethaspis suturalis - Larva
Stethaspis suturalis - Larva - Body of an insect
Body of an insect (Hymenoptera), showing the principal divisions A, head B, thorax C, abdomen a, antenna c, compound eyes m, mandible s, simple eyes b, prothorax d, mesothorax k, metathorax 1W, fore-wing 2W, hind-wing n, coxa o, trochanter p, femur r, tibia t, tarsus 1 to 9 segments of the abdomen. - Staphylinus oculatus
Staphylinus oculatus - Oral and digestive system of Deinacrida megacephala
Oral and digestive system of Deinacrida megacephala 1, mandibles 2, maxillæ 3, labrum 4, labium 5, maxillary palpi 6, labial palpi 8, œsophagus 9, crop 10, gizzard 11, pancreas 12, stomach 13, biliary vessels 14, ilium 15, colon 16, anus. - Pterostichus opulentus
- Colymbetes rufimanus - Larva
- Chætosoma scaritides
Chætosoma scaritides - Mouth-parts of Honey Bee
In the Honey Bee nearly all the mouth-parts of the Cockroach are to be made out, though some are small and others extremely produced in length. The mandibles (Mn) are not much altered, and are still used for biting, as well as for kneading wax and other domestic work. The mandibular teeth have proved inconvenient, and are gone. The lacinia of the maxilla (Mx′) forms a broad and flexible blade, used for piercing succulent tissues, but the galea has disappeared, and there is only a vestige of the maxillary palp (Mxp). In the second pair of maxillæ the palp (Lp) is prominent; its base forms a blade, while the tip is still useful as an organ of touch. The paraglossæ (Pa) can be made out, but the laciniæ are fused to form the long, hairy tongue. This ends in a spoon-shaped lobe (not unlike the “finger” of an elephant’s trunk), which is used both for licking and for sucking honey.