614 INSECTA. 



very nnlliant. [They arc called Japan-Moths.] A. Dc Cccrel/a, ReaumtircUa, &c. [The former figured in the 

 plate nf .Moths in the Eiifomo/u;/i.-i/\i- Tat Book.'] 



The tenth and last section of the Nocturnal Leiiidoptera, that of tlic Pterophorites, has great 

 alihiity with the preceding in the narrow form and Icni^th of the body and ^vings, Imt differs in having 

 thc^ \\ings slitthrough their whole length, like branches, or bearded fingers, like feathers. Their wings 

 tlins imitate those of birds. Linnaeus united them in his division of Phala^na Jluciia. De Geer naroed 

 them P/iahpihC'-7^ijj/'l'.e. 



AVe form them, with Fabriciiisand GeottVoy, into the suh;,a.'ni.is PltTuphoriix, the caterpillars of which have sixteen 

 feet, ami feed on leaves and flowers, and do not form a case. The palpi are recurved from the base, and not longer 

 thari tlir head ; the chrysalides are naked, setose, or tubercular. P. pcnfadacfj/liu-, Linn., the White Plumed 

 Jloth. A very common species. 



Oi-HCo'tcs, Latr., has the palpi advanced, loni^-^er than the head, and the clirysalis is inclosed in a silken cocoon, 

 P. /icuulach/lia; Linn., Lc. 



THE ELEVENTH ORDER OF INSECTS,- 



THE RHinrXERA,- 



Prcvidiisly cstabli-ilicil by Mr. Kirl)y iimler tlic name of Sirepsiptern (or Twisted Win^s), 

 [and winch lias been fully in-oved by recent oljservatioiis to have been correctly named, and 

 that Latreille's name, Rbipiptera, ought no longer to be applied to it], is composed of some 

 very singular insects, anomalous both in their structure and habits. 



At the sides of the anterior extremity of the thorax, near the neck, and at the outer Ijase of 

 the two fore-legs [but in reality originating u|iiiii the very short and eoUar-like mesothora.x], 

 .are attached a pair of small, crustaceons, moveable organs, like small elytra, bent backwards, 

 narrow, elongated, cluljbed, and curved at the tip, and terminating at the origin of the ivings. 

 [LatreiUe then contends that these pre-lialancers arc not rein-esentatives of the elytra, but of 

 the pieces termed jj^er^offe, observed at the base uf the « ings of the Lcpidoptcra ; but it 

 has been proved that they are the real representatives of ehtra.] The wings of the Rbipiptera 

 are large, membranous, divided 1)y longitudinal nervines, and folding lengthwise, like a fan. 

 The mouth is com]iosed of four pieces, of «liicli two are short, and a.ppear like a jiair of two- 

 jointed ]ialpi ; and the other two are inserted near the inner liasc of tlie preceding, in the form 

 of small linear plates, pointed, and crossing each other at the tip, like the mandililes of many 

 insects; they more nearly resemljle the lancets of the nnnitb of some Diptera than true man- 

 dibles. According to Savigny, the mouth is composed of a lalu'iini, two mandibles, two maxiUie, 

 each supporting a pair of small exarticulate palpi, and of a lower lip without palpi.] The head 

 is further furnished with a pair of large hemispherical eyes, somewhat pedunculated ; two 

 antenna;, aiiproxiinating at the liase on a cominon elevation, nearly filiform, short, and com- 

 posed of three joints, the two first lieing very short and the third very long, divided from its 

 base into two long compressed In-ancbes, nbicli are applied against each other. The ocelli 

 are wanting. The thorax [su]iposcd by Latredle to )iear] in its form and divisions much 

 resemblance to that of many Cicada', Psi/llri, and Clirijsix. [is now show n to Ijc quite anomalous 

 in its structure, consisting of a ring-like jiro- and mcso-thorax, and an immense metathorax] ; 

 the abdomen is subeyUndric, 8- or D-jointed, and terminated by appendages analogous to 

 those of the aljove-mentioiied Heraiptera. The legs, six in number, are nearly meinbranons, 

 compressed, of nearly cipial si/.c, and terminated by filiform tarsi composed of four meni- 

 Ijranous joints, vcsiciilose at their tips, the last being rather larger than the others, without 

 terminal ungues. Tlic fcnir fore-legs are close together, but the two others are placeil far 



