NEUROPTERA. 201 



obscure; superior extremity of the antennae, tibia, and tarsi, pale- 

 russet. 



Such lias been its excessive multiplication in the work-shops 

 and store-houses of the navy-yard at Rochefort, where it does 

 much injury, that it is impossible to destroy it. 



T. JlavicoUe, Fab. This species only differs from the lucifu- 

 prum in the colour of its thorax. It is very injurious to the 

 Olive, particularly in Spain. 



Linnaeus has placed the larv£e of this genus Termes, among 

 the Aptera, and the winged individuals with the Hemerobii. 



The species foreign to Europe have been but very imperfectly 

 characterized. Linnaeus confounds several under the name of 

 Termes fatale *. 



In the remaining Termetinae the tarsi are biarticulated, and the 

 labial palpi indistinct and very short. The antennae consist of about 

 ten joints, the first segment of the trunk is very small, and the inferior 

 wings are smaller than the others. 



They form the genus 



Psocus, Lat. Fab. — Termes, Hemerobius, Lin., 



And are very small Insects, with a short and extremely soft body that 

 is frequently inflated, or as if hump-backed. Their head is large, 

 their antennae setaceous, and the maxillary palpi salient. Their 

 Avings are tectiform and but slightly reticulated or simply veined. 

 They are extremely active, and live under the bark of trees, in 

 wood, &c. 



The following species is commonly found in books and collections 

 of Insects and plants. 



P. pulsatorius; Termes pulsaiorium, L. ; Schceff., Elem. 

 Entom., cxxvi, 1, 2. Usually apterous ; yellowish white; eyes 

 and some small spots on the abdomen, russet. It was thought 

 to produce that faint noise resembling the tick of a watch, fre- 

 quently heard in our houses, and of which we have spoken 

 while on the genus Anobium — thence the origin of its specific 

 name f. 

 5. The Perlides, in which the tarsi are triarticulated and the man- 

 dibles almost always partly membranous and small. The inferior 

 wings are wider than the others, and doubled at their inner margin. 



* .See Lat., Gen. Crust, et Insect., Ill, p. 203, and the Nouv, Diet. d'Hist. Nat., 

 article Termes. 



Certain Insects from the Southern countries of Europe and of Africa, analogous to 

 the Termites, but in which the head is wider thun the thorax ; where the tarsi arc 

 triarticulated, the wings hanlly extend beyond the abdomen, or are wanting ; where 

 the legs are compressed, and the two anterior tibise are the widest ; where the simple 

 eyes are wanting, and the thorax is elongated, form the genus I have indicated in 

 my Fam. Nat. du Reg. Anira., under the name of Embia ; it is figured in the great 

 work on Egypt. 



fSee Lat., Gen. Crust, et Insect., Ill, p. 207; Fab., Supp., Entom. Syst., and 

 the Monograph of this genus in the Illust. Icon, des Insect., dec. I, of Coquebert. 

 In the fourth volume of the Magasin der Entomologie of M. Germar, we find some 

 anatomical observations on the common species — puUutoi-iits. 



VOL. IV P 



