IIYMENOPTERA. 



;W 



Those larvae are elongate, nearly cylindric, with a scaly 

 head famished with strong mandibles, and a small eye on 

 each ride ; six feet, of which the two anterior are shortest 

 and thickest, and the other four longer; the body is com- 

 posed of twelve joints, of which the fourth has a conical 

 tubercle on each side in the majority of the species; the 

 terminal segment is furnished with two moveable hooks ; the 

 majority also possess two series of white flexible filaments, 

 which appear to be respiratory organs. When ready to 

 assume the pupa state, they fix their cases to some sub- 

 stance under water, closing each end with an open grating, 

 which, as well as the cases itself, varies in the different 



.„..:.. I; '- 'I*-— Phl7g»IK» K-Tundii.- a. L«rra in ill EM| 



spLLlca, 8 , gmting ; • . Imngo. 



The pupae have in front two hooks, which cross each other like a beak, and with which they make 

 their way through the grating, [immediately before they assume their final form,] when, although pre- 

 viously immoveable, they walk or swim with agility, by means of their four fore-legs, which are free and 

 fringed. The pupae of the larger species crawl up plants out of the water, where they throw off 

 their skin, but the smaller ones merely come to the surface, and are there transformed into winged 

 insects in the same way as Gnats, their old envelope serving them for a boat. 



Some have the hind wings evidently larger than the fore ones, and folded. 



Sericottoma, Latr., has in one of the sexes the maxillary palpi dilatrd into a mask covering the face ; in the 

 other sex they arc filiform, and 5-jointed. 



Phryganea proper, has the mouth alike in both sexes, and the palpi shorter than the head and thorax, and 

 slightly villose. P. grandii, [and a great number of other species, well known to the angler and fly-fisher], 



Myttacida, Latr., has the antenna; exceedingly long, as well as the maxillary palpi, winch are very hairy. (/>. 

 filn.sd, guadri/asciata, &c.) 



The Others have the fore wings narrow, lanceolate, Bubequal, and not folded. 



BydroptUa, Dalm., with short antenna* of equal thickness throughout. 



Psychomyia, Latr., has similar wing.s, but the antenna; are long and setaceous, founded upon a minute, appa- 

 rently ondescribed species. 



[This tribe has recently been thoroughly inv< stigated by M. Pictet, whose memoir forms a thick quarto volume, 

 with many plates. Messrs. Stephens and Curtis have also described many new English species, as well as addi- 

 tional genera. 



Dr. Bormeister has published an entire revision of the order Neoroptera in the last part of his Bandbuek dor 

 Entomologie, in which he has also established many additional genera.] 



THE NINTH ORDER OF INSECTS,— 



THE BYMENOPTERA, I.inna-ns (Pikzata, Fabricius),— 



Also possesses four membranous, naked wings, a mouth furnished with mandibles, maxilla:, ami 

 two lips; lmt the wings (of which the anterior are always the largest) have fewer oervures 

 than those of the Neuroptera, and are only veined [and not net-like]; the females have the 

 abdomen terminated by an ovipositor or a Bting. All possess, in addition to their compound 

 eyes, three minute ocelli; their antennae are of variable form, not onlj differing in the genera, 

 hut also in the sexes <d' the same species ; they are nevertheless filiform or setaceous in the 

 majority ; the maxillae and lower Up are generally narrow , elongated, attached in a deep ca\ ity 

 of the head bj long muscles*; semitubular at the base; often folded back at the extre- 

 mitj ; more fitted for conducting the nutritive fluids than for mastication, and muted in many 

 in the form of a proboscis ; thetonguelel is membranous, and either widened at the tip nr 

 long and filiform, having the pharynx at its base, and often covered bj a sort of sublabrum or 

 epipharynx; two labial and two maxillary palpi; thorax composed of three segments united in 



• II' lire tin p • I I'fcrtftkci of thU Krnrral movement ; in other biting luirctt it ll 



