ON THE GENUS HYMENOTES, 495 



the posterior tarsi are 3-jointed, the basal joint having, on 

 the under side, the appearance of being composed of three 

 joints, (fig. 67, 5 c). 



The Rev. F. W. Hope has communicated to me a singular 

 Indian species belonging to the family Locustidce, having the 

 pronotum elevated into a large and compressed leaf, but which 

 belongs to the section containing the locust, the tarsi having 

 a large pulvillus between the ungues, but the prosternum 

 has no point. It is very nearly allied to the Indian species 

 described by Serville under the name of Chorotypus fenes- 

 trate, but differs in several particulars. It may be thus 

 characterized. 



Phyllochoreia. Corpus valde compressum. Fades (fig. 67, 6 a) plana 

 verticalis, parte infera latiori, lateribus angulatis, supra oculos rotundato- 

 elevata. Oculi magni laterales. Antenna (fig. 67, 6 b) breves gracillimae 

 14-articulatae, artieulis discretis, 2 basalibus crassis, terminalibus paullo 

 crassioribus. Prothorax in folium compressissimum ultra dimidium abdo- 

 minis extensum elevatus, antice supra caput truncatus, postice acutus et ex 

 apice ad basin pedum intermediorum oblique truncatus. Alee ultra api- 

 cem pronoti extensae. Prosternum inerme. Pedes 4 antici simplices, tar- 

 sis 3-articulatis, articulo lmo subtiis sub-triarticulato ; pulvillo magno inter 

 ungues, (fig. 67, 6 c). Pedes 2 postici detereti. 



Species 1. — Phyllochoreia unicolor. Tota pallide luteo-fusca, pronoto 

 brunnescenti, linea teUuissima nigra utrinque inter oculos et mandibu- 

 las ducta. 



Corp. long. lin. 13. Habitat in India orientali. D. Whithill. In 

 Musaeo D. Hope. (Fig. 67, 6). 



In addition to the preceding insects there are several others 

 belonging to the family of the locusts (Locustida, Leach, 

 Acridi, Latr.) which have the pronotum elevated into leaf- 

 like appendages over the back, but in none is this structure 

 so conspicuous as in those figured above. Such are the ge- 

 nera Monachidium of Serville, so named from the cowl-like 

 appearance of this appendage, and composed of Brasilian 

 species ; Teratodes of Brulle, formed for the reception of the 

 Indian Gryllus monticollis of Gray, figured in the English 

 translation of the ' Animal Kingdom, ' pi. 64, (but previously 

 described by Thunberg under another name), and to which 

 Serville also unites the Gryllus scutatus of Stoll ; and Derico- 

 rys of Serville, the type of which is an Egyptian species. — 

 In the neighbouring family Gryllidce, (including the grass- 

 hoppers with long antenna), the genus Hyper liomala has the 

 hind part of the pronotum extended backwards entirely over 

 the wings and body, but depressed, with a longitudinal su- 

 ture, exactly like a pair of elytra. 



