NEUROPTERA. 201 
obscure; superior extremity of the antenne, tibize, and tarsi, pale- 
russet. 
Such has 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. flavicolle, Fab. This species only differs from the lucifu- 
gum in the colour of its thorax. It is very injurious to the 
Olive, particularly in Spain. 
Linnzeus has placed the larve 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. Linnzeus confounds several under the name of 
Termes fatale *. 
In the remaining Termetine the tarsi are biarticulated, and the 
labial palpi indistinct and very short. The antennee 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. Fad.—Termes, Hemerosius, 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 antennz setaceous, and the maxillary palpi salient. Their 
wings 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 pulsatorium, L.; Schoeff., 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 +. 
5. The Peruipegs, 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., III, p. 203, and the Nouv. Dict. d’Hist. Nat., 
article Termés. 
Certain Insects from the Southern countries of Europe and of Africa, analogous to 
the Termites, but in which the head is wider than the thorax; where the tarsi are 
triarticulated, the wings hardly extend beyond the abdomen, or are wanting ; where 
the legs are compressed, and the two anterior tibiz 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. Anim., under the name of Emsra ; it is figured in the great 
work on Egypt. 
+See Lat., Gen. Crust. et Insect., III, p. 207; Fab., Supp., Entom. Syst., and 
the Monograph of this genus in the Hust. 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—pulsatorius. 
VOL, IV Le 
