3S0 



TXSECTA. 



T. Incifiigns nnd JJncicoUi.'^ inlialiit the south of FraiiCL\ livinp; in the interior of trees. Tlie exotic species have 

 Iieen liut imperfectly characteriseii, Linnreus havins; confounded several under the name of T.fatnle. 



£m6m,Latr., comprises several insects allied to Temies, biitwith the head larji;er tlian the thorax ; tarsi S-jointed ; 

 Avinijs scarcely extending' beyond tlie alidomen. [See my monograph on tliis exotic genus, published in Tranaac- 

 iions of the Liniia-'in >Soi:icfi/ of London.] 



The other Termitines have the tarsi 2-jointed ; tlie labial palpi indistinct, or very short ; the antenncC 

 about 10-joiuted ; the first segment of tiie thorax very small, and the hind wings smaller than the fore 

 ones. They form the genus 



Psocus, Latr. (Tt'rmc.s-, Ilemcrobius, Fabr.), 

 These are insects with a short, soft, and gibbose body ; the head large ; the antennae setaceous ; wings roof-like, 

 and but slightly veined. They are very active, and live on the bark of trees. We generally find in 

 books of collections of plants, the P. puhalorhis, of a whitish colour, and which has been believed 

 to produce tin- blight noise tike the ticking of a cloek, often heard in hoaaes, whence its specific 

 name. 



C". Tlic Pcrliihs, which have three joints in the tarsi, the manilibles ahuost always 

 membranous and small, with the hind wings broader than tlic fore wings, and folded 

 at the inner edge. They consist of the genns 



Tkula, Geoir., — 

 In which the body is eh^ngate, narrow, and flattened ; the head rather large; anteniire setaceous ; 

 pro thorax neaily square ; the wings shutting horizontally on tlie bod\ ; ami the alulonien generally 

 terminated by twoset03. Their larvffi are aquatic, and are stated [by Latreille, but erroneously,] to reside in cases 

 which they bear about with them. [They arc naked, and resemble the imago, bnt are wingless.] 

 Pcrta b)L-<niil.itii, Linn. {Phnjganea), is a rather common species, found on the margin of rivers. 

 Ncmoura. Lutr., dilTersfrom Peria in its corneous mandibles, and in the abdomen not being terminated by setK. 

 [See the nionogiaidi of this group, publisbc<l by Mr. Newman in the M'Kjazine of Xnlnral Ills/oiy.] 



Fil; 



TIIE THIRD FAMILY OF TIIE NEUROPTERA,— 

 Ti-ih: Plicipennes, Latr., — 

 Are destitntc of mandibles, and their hind wings are generally broader than the superior, and folded 

 throughout thrir whole length. They comprise the genus 



Phryg.\nea, Linn. 



They have at the first sight the appearance of small PhahTemc, and De Gecr observed tliat the internal 

 structure of their larvae lias trrcat resemblance to that of caterpillars. In the bvstems of Kirliy and 

 Leach, they form tlie order Trichoptera, wliich is connected ^^ith the Le|)idoptera by means of tlie 

 Tineas. But as we naturally jiass from the Plieipennes to the Perlides, we. slundd be compelled to ter- 

 minate the Neuroptera -with Libelbila ami E))benicra, of which the structni'e and iiabit^ grcaily ditfer 

 from those of the Ilymenoptcra, which succeeds them in this system. The Libclluhe ami utlicr adjacent 

 Neuroptera, appear to us nearest allied to tlie Ortboptera. 



The head of the Pbcipennes is small, \\U\i two long setaceous and porrectcd antennrc ; the eyes arc 

 round and prominent; two ocelli, }daced in tlie forehead; a conical or bent laiu-ura ; four palpi, the 

 maxillary pair being often very long, filiform, or nearly setaceous, 5-jointed, and tlie lalfial 3-jointed ; 

 the maxdhe and lower bp m.embraouus and united ; the body is generally very hairy, and forms with 

 the wings an elongated triangle, as in many Xuctu;c. or P\ralides ; tlie prothorax. is small ; the wings are 

 simply vcmed, silken, or hirsute in many, and always roof-like. The legs are long, furnisbeil wit.h 

 small spines, with live joints to all the tarsi. These insects chiefly tly in tlic evening or night, often 

 entering our houses, attracted by the liglit, and being extremely active in all their mnvemcnts. TSicy 

 emit a disagreeable smell when touched. The smaller species fly in troops over water. Many females 

 carry their eggs united into a pacquet at the posterior extremity of the abdomen. Their larv;\; [which 

 are the well-known bait of the angler, called Caddiee, or Cad-bait,] reside, like tlic larvte of some moths, 

 in cases generally cyUndrical, covered with various substances they collect in the water, such as bits of 

 straw, leaves, sticks, sand, and even small shells, often symmetrically arranged, and which they at!ix to 

 tlieir cases by silken threads, spun from internal reservoirs similar to those of caterpillars ; the interior 

 uf this habitation forms a tube, which the larva bears about with it, protruding the anterior part 

 of its body when it creeps forward, never quitting it uf its own accord, and immediately re-entering it if 

 forced out of it. 



