ORTHOPTERA. 295 



also a recognised fact ; one understands, too, that, as the cold weather 

 advances, those individuals (or sAvarms) that fly south will, in most 

 cases, have the greatest chance of living a few days longer, but that 

 any number of the species, either singly or in flocks, that have been 

 bred in Canada or the northern States, ever reach subtropical America, 

 there is, as we have before stated, not an atom of sound evidence to 

 show. We suspect that the northern-bred specimens are killed o£f 

 under exactly parallel climatic conditions to those that kill oft' our 

 autumnal-bred I'l/raitiris canJui, the progeny of a spring irruption into 

 the north tempei'ate parts of Europe, 



ORTHOPTERA. 



Two Cockroaches new to Britain. — The following two species have 

 not, as far as I am aware, been noticed in this country before, and 

 though only casual visitors, I think it well advised to publish some 

 description of them, more particularly as one ^tijhqniiia decorata, Br., 

 is a species with a wide distribution, and may, like 8. oricntalis, L., 

 and its allies of the genus Periplaneta, become acclimatised in Britain. 



Stylopyga decorata, Brunner. — [Syn. : Pm^^ZrtHcfn rfccora^a, Br., "Nouveau 

 systeme cles Blattaires," 18G.5, p. 224.] — "Bather smaller than F. americana, L. 

 Brownish-black, with yellow markings. Head yellow, with three transverse dark 

 bands. Palpi yellowish, with the distal joint darker. Antennro dark brown, longer 

 than the body. Pronotnm brownish-black, with a yellow streak within its anterior 

 and lateral borders, but following- their contour. Posteriorly this streak becomes a 

 series of yellow blotches. The brown central portion of the pronotum is ornamented 

 on each side by an irregular yellow blotch enclosing a black dot. The mesonotum 

 and metanotum and abdominal segments blackish-brown, with clearly margined 

 yellow blotches and dashes and black dots. Elytra lobiform, rounded, dark, with 

 two yellow blotches, the external one being much the larger. Legs long, yellow, 

 with dark markings, and brown spines. Supra-anal plate membranous, yellowish, 

 bilobed. Subgenital lamina rounded, excised at the insertion of the long thin styles. 

 Length of body 2.5mm. Distkiuution : •' Mexico, Venezuela, Buenos A,, res, Zanzibar, 

 Madagascar, Madras" (Brunner). This species might perhaps be confused with 

 immature specimens of P. australasiae, but its ground colour is much darker, its 

 markings more varied and more clearly defined, and its lobiform elytra are entirely 

 separated from the mesonotum. 



The single male specimen from which the above description is taken 

 reached Worksop alive, March 20th, 1902, running out of a box 

 which contained some live birds from South Africa. It was in 

 company with several P. americana and was killed by Mr. J. 

 Houghton, of Worksop, by whom it was given to me, and is now 

 in my collection. Mr. Malcolm P3urr kindly identified it for me. 



Panchlora exoleta, Kluo. — [Syn. : P. exolctii, Klg. Burmeister, 1839, 

 "Handb.," ii., p. -507. Brunner v. Wattenw'yl, " Nouv. syst. des Blattaires," 

 p. 272.] — Size about two-thirds that of P. aiiiirifaiia, h. Colour delicate trans- 

 parent green. Head green. Eyes rich chestnut-brown, enlarged and nearly con- 

 tiguous above. Antennae testaceous. Pronotum green, with a distinct yellow line 

 on each side separating the disc from the lateral margins. These yellow lines are 

 continued anteriorly around the vertex just above the eyes, and posteriorly along 

 the mediastinal nervure of each elytron. P^lytra and wings perfectly developed, 

 hyaline, with green nervures. Abdomen much compressed, yellowish-white, verg- 

 ing into green laterally. Legs pale greenish, spines tipped with brown. Length of 

 body 18mm., of elytron 21mm. Distribution : " Brazil, .Jamaica, Venezuela, 

 Veracruz, Surinam " (Brunner). 



The single female here described reached South Leverton alive, June 4th, 

 1902. It is now in my collection, having been given to me by Rev. A. 

 Thornley,,who received it from a fruit-dealer of Coalville, in Leicester- 



