an outgrowth or process changing the general shape of a body part, particularly the appendages; often used in describing the male pedipalp.

a hardened plate (sclerite) covering the upper (dorsal) portion of the cephalothorax.

belonging to or attached to the head; directed toward the head.

one of the two main body parts (tagmata), located towards the anterior end, composed of the head (cephalic region or caput) and the thorax (thoracic region), the two regions being separated by the cervical groove; covered by the carapace and bearing the eyes, legs, pedipalps and mouthpart.

the pincer-like first pair of appendages of adult spiders at the front of the carapace, made up of basal portion, the paturon, and the fang; sometimes called the jaw.

having longitudinal ridges.

a small spiny outgrowth ("wart") on the endites and labium of Mygalomorphae.

the end part of the tarsus of the pedipalp in a mature male, usually hollowed out and bearing the palpal bulb.

palpal bulb.

a transverse slit towards the front (anterior) of underside of the abdomen; the front pair of book lungs open at the edge of this furrow as do the genital openings (gonopores).

the abdomen or opisthosoma which is covered with two hard cuticular plates, called the epigastric plates, which help protect the book lungs of a spider.

a hardened plate on the underside of the female abdomen in which the copulatory openings are located; only fully developed in mature females of entelegyne spiders.

the final hinged part of the chelicera, normally folded down into a groove in the basal part of the chelicera; used to seize prey; venom is injected via an opening near the tip of the fang.

(also called thoracic furrow or dorsal groove), a depression or pit in the center of the carapace of a spider marking an inward projection of the exoskeleton to which stomach muscles are attached[

smooth, hairless and without punctures or structures.

the genital opening; located in the epigastric furrow; the opening of the duct from the uterus in females and from the testes in males.

consisting of dissimilar or diverse constituents; of different kinds; not homogenous.

having the same genetic structure; made up of the same kind.

relating to, or situated in the region of the humerus or shoulder.

(also called bulbus, palpal organ, genital bulb) the copulatory organ of the male spider, carried on the modified last segment of the pedipalp, used to transfer sperm to the female.[

next to; nearby; at the side of the cymbium; an outgrowth of the cymbium on the male pedipalp.

pertaining to the knee joint or cap; a segment of the leg between the femur (meropodite) and tibia (carpopodite).

the second pair of appendages in the cephalothorax used to hold down and crush prey; corresponding to the mandibles in Mandibulata.

the side of the cheliceral furrow facing backward (towards the posterior end of the spider); particularly used for describing teeth.

an elongated process or appendage of some epigyne.

a brush of hairs (setae); called a claw tuft when on the end of the foot (tarsus), where it improves adhesion.

a hardened (sclerotized) plate on the abdomen of some spiders.

slightly less than round.

palpal bulb.

the main hardened part of the palpal bulb.

a slender hair-like structure of variable length on the legs and pedipalps, arising from a special socket; used to detect air movements, including sounds.

cut off squarely at tip.

pertaining to the ungues or claws.

the anterior corner of the wing.

a hard lump or swelling of the cuticle; in particular, such a swelling at the base of the wing articulating with the thorax by means of an axillary.

first leg segment, between body and trochanter.

the anterior hardened or chitinous wings of beetles, serving as coverings to the hind wings.

notched.

the deflexed or inflexed portions of the elytra, immediately beneath the edge.

an antenna that is thread-like and of uniform thickness.

the antenna consists of a scape, [1] [2] six-segmented funicle, and club; the funicle is that part of the clavola between the club and the ring-joints.

the shoulder; in Coleoptera, the basal exterior angle of the elytra.

in Coleoptera, the inflexed edge of the pronotum ([1] [2] pronotal hypomera).

not punctate or marked with punctures.

the upper lip; the anterior structure below the clypeus covering the base of the mandible and forms the roof of the mouth.

the sclerite between the mesothoracic legs.

the underside of the metathorax.

of or relating to the notopleura

a region on the thorax; the notopleuron is a sclerite on the pleuron.[1] [2] [3]

the dorsal or upper part of a segment.

a lateral sclerite of thoracic segment between the tergum and the sternum; [1] [2] [3] the terms pro-, meso- and metapleuron are used respectively for the pleura of the first, second and third thoracic segments.

the upper or dorsal surface of the prothorax.

the fore-breast; the sclerite between the forelegs (prothoracic legs).

snout-like prolongation of the head.

in Coleoptera triangular piece between the elytra.

a subdivision of a sternal plate.

the entire ventral division of any segment; in general usage, the underside of the insect thorax, between the coxal cavities.

marked with parallel, fine impressed lines

not quite spherical.

the posterior part of the gena, behind, before or beneath the eye.

cut off squarely at tip.

the top of the head between the eyes, front, and occiput.

a broad longitudinal stripe.

hook or pincer-like processes terminating the abdomen as the specialized appendages of earwigs; used as clasping organs in copulation.

the leading edge of the wing.

the styli of the ninth segment, when present, generally modified to form clasping organs.

the ninth abdominal sternite of [1] [2] [3] the male insect; the sub genital plate.

in Diptera, a sub hemispherical part cut off by an impressed line from the mesonotum.

a subdivision of a sternal plate.

specifically, and in general usage, the underside of the insect thorax between the coxal cavities.

in Diptera, the ovipositor.

any notable prolongation of the front of the head; specifically, the jointed structure or rostrum covering the maxillae

in Hemiptera the, the thickened or raised spots on the thorax, especially of Pentatomidae.

a male copulatory structure, one of a pair of external anal processes of an insect that are used to grasp a female

the club of an antenna; in Hemiptera, the sharply pointed anal area of the hemelytra, next to the scutellum when [1] [2] [3] [4] folded.

that part of the head below the front, to which the labrum is attached anteriorly.

in general, any structure between the head and thorax; in Hemiptera, the narrow constricted anterior part of the pronotum, generally set off by a groove.

cylindrical, with a flat base, tapering to a point.

in Hemiptera, the elongate middle section of the hemelytra which extends from the base to the membrane below the embolium, if the latter is present; the entire harder part of such a wing as distinguished from the membrane, exclusive of the clavus.

first leg segment, between body and trochanter.

notched; with an obtuse, rounded or quadrate section cut from a margin.

the third segment of the telepodite, usually the principal segment of the leg; stoutest segment of the leg, articulated to the body through the trochanter and coxa bearing [1] [2] the tibia at its distal end.

the unpaired sclerite of the head lying between the arms of the anterior portion of the epicranial suture; it bears the median ocellus.

the combined part of the front and clypeus.

smooth, hairless and without punctures or structures.

spine on the shoulder of the humerus (the lateral angle of the prothorax).

the shoulder, lateral angle of the prothorax.

transparent or partly so; water like in color; glassy.

in Hemiptera, the two lateral lobes of the head, one on each side of the tylus (the distal part of the clypeus).

a minute simple eye in adult insects consisting of a single bead-like lens occurring singly or in small groups.

a lateral sclerite of thoracic segment between the tergum and the sternum; [1] [2] [3] The terms pro-, meso- and metapleuron are used respectively for the pleura of the first, second and third thoracic segments.

the upper or dorsal surface of the prothorax.

one of the lateral parts of the thorax.

the upper piece of the genitalia.

adapted for seizing prey; predacious.

in Hemiptera, the triangular part of the mesothorax.

a subdivision of a sternal plate

slightly less than square.

hair-bearing spots on the underside of the abdomen in many Hemiptera.

a small, rounded projection or protuberance.

a central prominence on the upper front side of the head of some hemipterons; the distal part of the clypeus or anteclypeal region, margined by deep clefts that separate it from the lateral lobes of the head, called the juga.

the top of the head between the eyes, front and occiput.

the wing bearing plate of the dorsum of the mesothorax or metathorax.

one of the small spaces between veins, a small wing cell.

a blister, or blister-like structure.

wrinkled; with alternate ridges and channels.

the anterior margin of a wing.

the fifth longitudinal vein from the anterior edge of an insect's wing.

the middle area of the wing.

in Hymenoptera, 1st media2, media3 and media4.

the antenna consists of a scape, [1] [2] six-segmented funicle, and club; the funicle is that part of the clavola

the lateral surface of the mesothorax.

the scutum or dorsal plate of the middle thoracic segment.

longitudinal furrows convergent posteriorly in the anterior part of the mesonotum.

the hinder part of the epicranium between the vert ex and the neck.

in Hymenoptera, the first abdominal segment when it forms a part of the alitrunk (that part of the thorax to which the wings are attached) termed epinotum in ants; median segment.

running backward; in Hymenoptera the median crossvein from the point of branching to the junction.

a hardened body part.

in Hymenoptera the smaller part of the alinotum set off by the transcuta suture; the posterior division of the notum.

furnished or covered with setae or stiff hairs.

a dense, often discolored part of the costal margin of the wing, usually at the end of the radius.

a sclerotized plate forming the tergum of a segment; a dorsal sclerite.

the socket in which the antenna of an insect articulates.

the sclerotized terminal portion of the male genital tract that is inserted into the female during insemination. Its shape is often important in separating closely related species.

the anterior corner of the wing.

the part of the antenna, distal to the pedicel, composed of one or more segments, called flagellomeres

the spine, simple in males, compound in females, arising from the base of the hind wings in many Lepidoptera, projecting beneath the forewing, whose function is to unite the wings in flight.

in the genitalia of male Lepidoptera, one of a pair of clasping organs developed as appendages of the ninth abdominal sternite; [1] [2] [3] specialized growths of stiff hairs or bristles.

a sucker; applied to that portion of the mouth of a sucking insect through which liquid food is drawn (nectar in Lepidoptera).

the juxta is an organ in the males of most Lepidoptera that supports the aedeagus, the organ used for reproduction; the juxta is located between the two valvae.

the one- to four-jointed sensory appendages of the insect labium, shorter than the maxillary palpi and commonly three-segmented.

simple eye above each compound eye.

tubular feeding and sucking organ.

in Lepidoptera, the loop into which the frenulum of the male is fitted.

adapted for seizing prey; predacious.

a crossvein between the radius and cubitus near the base of the wing.

in dragonflies a basal quadrangular cell, in the wing venation, which is delimited by veins MA (anterior side), MP (posterior side), MAb (distal side) and the arculus (basal side).

the prominent cell, usually opaque and colored, near the tip of each wing of the Odonata, on the anterior margin; also, more loosely, called stigma.

a subdivision of a sternal plate.

spines that connect by a joint; jointed or segmented.

a keel-like elevation (or ridge) not necessarily high or acute, on the body-wall of an insect.

an appendage, (generally paired) of the tenth abdominal segment, usually slender, filamentous and segmented.

the modified, hardened forewing of Coleoptera) and some of the Hemiptera.

the extreme point or front of the vertex.[1] [2] [3]

formed for or with the habit of digging or burrowing.

slanting.

in the thorax of pterygote insects the subcoxal sclerotization above, before and behind the coxa; [1] [2] the lateral region of any segment of the insect body, commonly the thoracic segments.

the spaces or areas formed by three transverse impressions on the pronotum.[1] [2]

one of the lateral parts of the thorax.

of or belonging to the prosternum.

the basal joint in geniculate antennae.

specifically, and in general usage, the underside of the insect thorax between the coxal cavities.

veinlets connected with stridulation (making creaking sounds).

slightly less than square.

a furrow or groove.

a covering; the hardened leathery or horny forewing in Orthoptera.

small veins in the insect wing; In Orthoptera, the minute transverse ribs or ridges between the longitudinal veins.

the top of the head between the eyes, front and occiput

fan shaped; with long thin processes lying flat on each other like the folds of a fan.