194 INSECTA. 
Both sexes are winged, and the wings, are longer than the abdomen, 
adapted for flight, oval or linear, but not narrowed towards the extre- 
mity or subulate. Such are those which compose the 
Nemorrera, Lat. Ohv., 
Where the superior wings are distant, almost oval, and very finely 
reticulated; the inferior ones are very long and linear; no simple eyes. 
The abdomen is nearly similar in form in both sexes. They ap- 
pear to have six palpi, and hitherto seem to have been only observed 
in the most southern parts of Europe, in Africa, and in the adjacent 
countries of Asia *. 
Birracus, Lat., 
Where the four wings are equal and laid horizontally on the body. 
They are furnished with simple eyes; the abdomen is almost similar 
in both sexes, and the legs are very long ; the tarsi are terminated by 
a single hook, and are destitute of pellets f. 
Panorpa, Lat. 
The wings and simple eyes as in the preceding genus ; but the ab- 
domen of the males is terminated by an articulated tail, almost like 
that of the Scorpions, with a forceps at the extremity ; that of the fe- 
males end in a point. The legs of both sexes are of a moderate 
length, with two hooks and a pellet at the extremity of the tarsi. 
P. communis. L.; De Geer, Insect., II, xxiv, 34. From se- 
ven to eight lines in length; black; rostrum and extremity of 
the abdomen russet ; wings spotted with black. On hedges and 
in woods f. 
In others, the first segment of the thorax is large, and seems alone 
to form that part, the two following ones being covered by the wings 
in the males. The wings are subulate, recurved at the extremity, 
shorter than the abdomen, and wanting in the females where that part 
of the body is terminated by an acinaciform ovipositor. 
Boreus, Lat. 
The only species of this genus known is the 
B. hiemalis; Panorpa hiemalis, L.; Gryllus proboscideus, 
Panz., Faun. Insect. Germ., XXII, 18. It is found in winter, 
under moss, in the north of Europe and in the Alps §. 
2. The Myrmeveonipss, which also have five joints in the tarsi, 
but their head is not prolonged anteriorly in the form of a rostrum or 
snout; their antenne gradually enlarge or have a globuliform termi- 
nation. 
* Lat., Gen. Crust. et Insect., III, p. 186; Oliv., Encye. Méthod., article Né- 
moptere. Doctor Leach calls it Monopteryx; he has figured two species, lusitanica 
and africana, in his Zoological Miscellany, Ixxxv. 
+ Lat., Gen. Crust. et Insect. 
t For the other species, see Lat., Oliv., Ib., article Panorpe, and Leach, Zool. 
Miscell., xciv. 
§ Oliv., Ib., article, Ib. 
