ENTOMOLOGY. 
Mantis. 
Gryllus. - 
Fulgera. 
Cicada. - - - 
NotoneCta. - - 
Nepa. - 
Cimex. 
Macrocephalus. 
Aphis. - - - 
Chenr.es. - - 
Coccus. 
Thrips. 
Mouth armed with jaws: fore-feet fer¬ 
rate, the claw (ingle. 
Mouth armed with jaws : hind-legs 
formed for leaping. 
Snout infleCted : front projecting, in¬ 
flated : antennae capitate. 
Snout infleCted: hind-legs formed for 
leaping. 
Snout infleCted: hind-legsciliate within. 
Snout infleCted: fore-legs cheliform. 
Snout infleCted : legs formed for run¬ 
ning: antennae longer than the thorax. 
Snout infleCted: antennae very fliort. 
Snout infleCted : abdomen two-horned. 
Snout placed in the bread: hind-legs 
formed fof leaping. 
Snout placed in the bread: abdomen 
(in the males) terminating in bridles. 
Snout obfolete : wings incumbent on 
the abdomen, which is reflexile. 
III. Lefidoptera, [from AE7TI?, a fcale, and irl^cv, a 
wing,] are infeCts having four wings, covered with fine 
imbricate fcales refembling pow der or meal ; as in the but¬ 
terfly, moth, &c. This order contains three genera, viz. 
Papilio. - - Antennae thicker towards the tip. 
Sphinx. - - Antennae thicker in the middle. 
Phaltena. - - Antennae thicker towards the bafe. 
IV. Neuroftera, [from vendor, a nerve, and tCIe^ov, a 
wing.] Thefe have four membranous transparent naked 
wings, generally reticulate, or like net-work. This order 
contains the following genera : 
Libellula. - - Tail forked : mouth with many jaws : 
wings expanded. 
Ephemera. - - Tail with two or three bridles: mouth 
without teeth : wings ereCt. 
Myrmeleon. - Tail forked: mouth two-toothed: wings 
deflected. 
Phryganea. - Tail Ample : mouth without teeth : 
wings defleCted. 
Hemerobius. - Tail Ample: mouth two-toothed: wings 
defleCted. 
Panorpa. - - Tail chelate : mouth with an extended 
fnout: wings incumbent. 
Raphidia. - - Tail ending in a Angle thread : mouth 
two-toothed : wings defleCted. 
V. Hymenoftera, [from v/xcv, a membrane, and 
Yflsgov, awing,] comprehend infeCts with four membra¬ 
nous wings, and a tail. This order contains the follow¬ 
ing genera: 
Cynips. - - - Sting fpiral. 
Tenthredo. - Sting ferrate, two-valved. 
Sirex. - - - Sting ferrate, projecting from a fpine 
under the abdomen. 
Ichneumon. - Sting exferted, triple. 
Sphex. - - - Sting pungent: wings fmooth : tongue 
fiat, dilated, nearly entire at the end. 
Ammophila. - Sting pungent: wings fmooth : tongue 
infleCted, bifid, 
Scolia. - - - Tongue infleCted, trifid: lip membra¬ 
naceous at the end. 
Thynnus. - - Tongue very fliort, involute: lip trifid. 
Leucopfis. - Lip longer than the jaw, notched: an¬ 
tennae clavate. 
Tiphia. - - Lip fliort, horny, three-toothed. 
Chalcis. - - Antennae fliort, cylindrical, fufiform. 
Chryfis. - - Sting pungent : abdomen arched be¬ 
neath. 
Vefpa. ... Sting pungent: upper wings folded. 
Apis. - - - Sting pungent: tongue infleCted. 
Formica. - - Sting obfolete : neuters without wings. 
Mutilla. - - Sting pungent: neuters without wings. 
VI. Diptera, [from Sw, two, and srUgov, a wing,] 
comprehend all fuch infeCts as have only two wings, and 
VoL-VI. No. 395. 
833 
This order contains the following 
poifcrs or balancers. 
genera: 
With probofcis and fucker. 
Diopfis. - - Head two-horned : eyes terminal. 
Tipula. - - Sucker without a (heath : feelers two, 
projecting, filiform. 
Mufca. - - Sucker without a (heath, furniflied with 
bridles. 
Tabanus. - - Sucker with'a fingle-valved (heath, fur- 
nifhed with bridles. 
Empis. - - Probofcis infleCted. 
Conops. - - Probofcis projecting, geniculate. 
With fucker , but no probofcis. 
Oeflrus. - - Sucker retraCted within the perforated 
lips. 
Afilus. - - - Sucker draight, two-valved, gibbous 
at the bale. 
Stomoxys. - Sucker with a fingle-valved convolute 
' flieath, geniculate at the bafe. 
Culex. - - Sheath exferted, one-valved, flexile, 
with five bridles. 
Bombylus. - Sucker very long, draight, fetaceous, 
two-valved. 
Hippobofca. - Sucker fliort, cylindrical, draight, two- 
valved. 
VII. Aptera, [from «, without, and ttIs^os, awing,] 
infeCts having no wings. This order contains the follow¬ 
ing genera: 
Legs fix: head difiinEl from the thorax. 
Lepifma. - - Tail ending in fetaceous bridles. 
Podura. - - Tail forked, infleCted, elaflic. 
Termes. - - Mouth with two jaws : lip horny, four- 
cleft. 
Pedictilus. - Mouth armed with an exfertile fling. 
Pulex. - - Snout infleCted, armed with a ding: 
feet formed for leaping. 
Legs eight to fourteen : head and thorax united. 
A cams. 
legs eight: feelers com- 
Hydrachna. 
Aranea. 
Plialangium. 
Scorpio. 
Cancer. - 
Monoculus. 
Onifcus. 
Eyes two 
prefled. 
Eyes two to eight: legs eight: abdo- 
. men with textorial papillae. 
Eyes eight: legs eight: abdomen with 
textorial papillae: feelers clubbed. 
Eyes four : legs eight: feelers chelate. 
Eyes eight: legs eight: feelers chelate. 
Eyes two : legs ten : the firfi pair che¬ 
late. 
Eyes two: legs twelve: ten of them 
chelate. 
Eyes two: legs fourteen. 
Legs numerous: head difiinEl from the thorax. 
Scolopendra. - Body linear. 
Julus. - - - Body fubcylindrical. 
The annexed engraving. Entomology Plate I. is calcu¬ 
lated to exhibit at one view the condruCtion of the feven 
orders of the Insecta of Linnaeus. Fig 1, a Coleop¬ 
terous infeCt ; the Bupredis gigantea. Fig. 2, the fe¬ 
male of the fame. Fig. 3, an Hemipterous infeCt ; the 
Blatta Americana. Fig. 4, the female of the fame. Un¬ 
der the female at a , is (hewn the egg of the blatta, with a 
young larva, b , juft quickened, and emerging from it. 
Fig. 5, a LEriDOPTEROUs infeCt ; the Phalsena colfus, 
or goat moth. Fig. 6, another Lepidopterous infeCt; 
the Papilio vanillae, or butterfly with fpiral probofcis. 
Fig. 7, a bunch of eggs belonging to the goat-moth. Fig. 
8, an unimpregnated egg, magnified; and Fig. 9, two 
fecundated eggs, alfo magnified, belonging to the butter¬ 
fly. Fig. 10, a Neuropterous infeCt; the Libellula 
Carolina, or male dragon-fly of Carolina: Fig. ii, the 
female of the fame. Fig. 12, an Hymenofterous in¬ 
feCt ; the Apis mufcorum, or mofly humming bee. 
10 C Fig. t 3s> 
