96 [April, 



3. — Platycleis lioEsELir, Hagcubach. 



Locusta Roeselii, Hagenbach, Symb. faun. ins. Helv., i, p. 39, fig. 24. 

 Microptcrijx Roeselii., Stephens, Mandib., vi, p. 18. 

 Platycleis Roeselii, Brunner, Prod, der Eur. Ortb., p. 358. 

 La. hrevipennis, Charp., Hora? Ent., p. 114. 



Decticus {Platycleis) hrevipennis, Fischer, Orth. Eur., p. 274, tab. xiii, 

 figs. 9, Qa — h. 



Head with the frons pale fuscous. Vertex very broad, with a central longitu- 

 dinal pale line, on either side of which is a blackish streak, not continued as far 

 forward as the cross furrows between the vertex and frons ; the two blackish streaks 

 sometimes uniting anteriorly, with a blackisli streak over the eyes. Pronotum with 

 the disc broad, as wide anteriorly as posteriorly, flat, with an obsolete median ridge > 

 side lobes roundly inserted, mottled with fuscous, with the margin sulphureous or 

 greenish, most marked posteriorly and inferiorly, but running also along the an- 

 terior margin. Elytra and wings not so long as the abdomen. Elytra ferruginous, 

 with blackish veins, not acuminate towards the apes, posterior margin not so sinuate 

 as in P. hrachyptera, L. All the femora fusco-ferruginous, with a few darker 

 markings ; posterior femora with a broad black streak near the base on the outer 

 side. Abdomen ferruginous. Anal segment in $ excavated posteriorly, lobes tri- 

 angularly produced. Cerci in <? reaching well beyond the subgenital lamina, with 

 an internal tooth about the junction of the middle and posterior thirds. Subgenital 

 lamina in $ broadly incised ; in ? long, deeply incised, witli long triangular lobes. 

 Ovipositor sharply incurven near the base, not more than half as long again as the 

 pronotum. Length of the body, 14 — 18 mm. 



„ „ ovipositor, V — 8 mm. 



This species is found in Nortliern and Central Europe, and occur? 

 in damp meadows, Mr. E. Saunders took one at Heme Bay in August, 

 1886, and Mr. Wallis Kew has given me specimens from Trusthorpe 

 in Lincolnshire, August, 1888. Stephens says (IMandib., vi, 13) that 

 he had only seen two British specimens, supposed to have been taken 

 near Hampstead. 



viii.— DECTICUS, Serv. 



The peculiar characters of this genus have already been referred 

 to under the last three genera. The species {verrucivorus, L.) may be 

 at once distinguished by its large size from all the other IJritish 

 Locustidce, except Lo. viridissimn, and from this species its spotted 

 elytra afford an easy means of se[)aratiiig it. 



1. — Decticus VEURUciA^orais, Linne. 

 Gryllus {Tettigonia) verruciforus, Linne, Faun. Succ, p. 237 ; Syst, 

 Nat., i, p. 098. 



