274 THE entomologist's record. 



1. Mediastinal area and elytra gradually narrowed 

 towards the apex, prolonged along the costal 

 margin, and not dilated with a lobe at the base, 

 so that the costal margin is straight 



2. Valves of ovipositor armed with a strong 

 tooth on the outer side, pointing in the 



same direction as the points of the valves Stenobothrus, Fischer 



{sensu stricto). 

 2.2. Valves of ovipositor with no lateral tooth Omocestus, Bolivar. 



1.1. Mediastinal area of elytra rapidly narrowing towards 

 the apex, generally not exceeding half the length 

 of the elytra, broadened near the base so as to 

 form a lobe or dilation, so that the costal margin 

 is not straight, but convex near the base. . 



2. Lateral carina3 of pronotum bent in at an 

 angle or curved in the prozona, diverg- 

 ing posteriorly . . . . . . . . Stacroderus, Bolivar. 



2.2. Lateral carinse of pronotum straight and 

 parallel, or only very slightly curved in 

 the prozona . . . . . . . . Chorthippus, Fieber. 



The genus Stenobothriis in the strict sense is only represented in 

 Britain by *S'. lineatm, Panzer. The broad and regular fenestration of 

 the discoidal area is characteristic of this and the allied species, and 

 the tooth in the valves of the ovipositor is easy to perceive. Other 

 members of the genus are S. cram pea, Ocsk., a short- winged Austrian 

 species; S. nuiromaculatus, H.-Schaff. ; S.Jischeri, Eversm. [ = )iigro- 

 f/eniculatus, Br.); S. stif/iimticns, Ramb., occurring in the Mediterranean 

 countries ; the three latter are difficult to distinguish from each other 

 and froiu S. lineatus. Other species are — S. festicus, Bolivar, probably 

 identical with <S'. amoenus, Bris., from Algeria; S. r/ra)miiici(s, Caz., and 

 S. bolirari, Br. ; these three latter appear to be peculiar to the Iberian 

 Peninsula. The genus Oiiioccsttis, Bolivar, is represented in Britain by 

 two species, 0. viridnlKs, L., and O. riifipea, Zett., others are 0. liaemorr- 

 hoidalis, Charp., from South Central Europe, 0. raymondi, Yersin, from 

 South of France, Spain, and Algeria ; O. petyieits, Bris., from South of 

 France and Pyrenees ; O.vnuHtiadmus, Bol., and 0. uhagoni, BoL, from 

 Spain; O.lncasi, Bris., from Algeria; CKantif/ai, BoL, from Catalonia. 



The third genus, Staamderus, BoL, comprises the third and fourth 

 groups of Brunner's arrangement. Our only British species is the 

 universal S. hicolor, Charp., but the allied S. bi(/i(tttdns, L., may be 

 discovered yet. A clearly defined group is formed by S. morio, Fabr., 

 and S. apricarius, L., in which the ulnar veins of the elytra are only 

 separate at the base and united in the rest by their length. Other 

 members of the genus are S. ininiatm, L., of the mountains of central 

 and eastern Europe ; S. hinotatns, Charp., from southern France and 

 Spain ; S'. sanlcyi. Krauss, which occurs along the coast of France and 

 Spain, from the Basses- Alpes to Barcelona. S. cazurroi, BoL, from the 

 Asturias ; S. pulhta, Phil., from eastern Europe ; 5. npicalis, H.-Sch., 

 from France and Spain ; S. vai/ans, Fieb., common in central and 

 southern Europe. This latter has occurred in the Channel Islands, 

 and might be discovered in our southern counties. 



The last genus is Chorthippus, Fieber, which was fused with Stenu- 

 bothrm by Brunner and other authors. Our two remaining British 

 species C. elegans, Charp., and C. parallelus, Zett., are representatives 

 of this, as also C. lonyicornn, Latr., from northern France and 

 Belgium, which is probably often confused with C. parallelm, and 



