274 OETHOPTEEA. 



Hal. Panama, Volcan de Chiriqui 2500 feet (Champion). 



This species resembles 0. conspersus, Sss., from Brazil, but it is smaller and has the 

 apical part of the vertex truncate and convex, not sulcate ; the neuration of the male 

 elytra is also different, the postanal vein being strongly arcuate and its branch not 

 falling on the inner end of the speculum, but joining the vena diagonalis before this 

 angle ; and the speculum is very elongate and ovate. The neuration of the tympanum 

 (" vena stridulans et v. obliquse supplementares ") resembles that of 0. conspersus, and 

 these two species form, on this account, a particular group. 



[5. Orocharis amusus, sp. n. (Tab. XIII. fig. 28.) 



§ . Maximus, fulvo-testaceus. Verticis rostrum primo articulo antennarum aequilatum, orbiculo minuto glabro, 

 piano, oeellum imitante notatum. Ocelli grandes, in lineam transversalem exserti, vitrei, haud callosi ; 

 laterales orbiculares ; intermedins minor, transversus. Palpi maxillares articulo ultimo dilatato, 

 compresso, triangulari, basi baud gracili. Pronotum postice obtusangulatum. Elytra elongata, vena 

 humerali extus fusco-limbata ; vena mediastina 5-ramosa. Alse longe caudatae. Tibiae posticae 

 spinis 6 : 5. Ovipositor modice acutus, valvis apicalibus subtus irregulariter lobato-crenatis. 



5 . Long. corp. 1*5 ; elytr. 22*5 ; femor. post. 15-5 ; ovipos. 15-16 millim. 



Figure. — Fig. 28. the terminal joints of the maxillary palpus, § . 



Hah. Bkazil, Pernambuco (Mus. Genavense). 

 . A species of the size of 0. canotus, remarkable by the form of its maxillary palpi.] 



6. Orocharis tibialis, sp. n. (Tab. XIII. fig. 25.) 



O. gryllodce simillimus at paulo major ; gracilis, fulvo-testaceus ; elytris sparse in canthis brunneo-punctatis. 

 Caput vertice planato vel subexcavato ; ocellis majusculis ; antico in medio rostro exserto, angusto, 

 transverso. Palporum ultimus articulus (fig. 25) gracilis, apice infundibuliformis. Elytra elongata, 

 abdomen superantia. Ala3 longiuscule caudatae. Pedes antici subtiliter brunneo-irrorati. Tibiae 

 anticae ad basin leviter dilatatae, utrinque tympano magno, elliptico, membranaceo, in medio linea 

 subopaca notato. Femora postica gracilia, longiuscula, quarta parte apicali gracili. Tibiae posticae ad 

 spinas fusco-punctatae. Cerci fusco-punctati. 



$ . Elytri vena mediastina 8-9-ramosa. Ovipositor femoris longitudine, apice acutissimus. Lamina supra- 

 analis basi transversa, in medio par allele producta. 



Var. Ovipositor femori postico paulo longior. 



cJ . Elytri vena mediastina ramis 13-14 sigmoidalibus instructa. Tympanum normale, illo P. gryllodce 

 (Tab. XIII. fig. 22) conforme ; speculo aeque longo ac lato, postice paulo obtusiore. Vena stridulans 

 arcuata. Vence transversa (v) transversales. Area apicalis elongata, dense in longitudinem pliculata. 

 Lamina infra-genitalis apice sulcata. 



$ . Long. corp. 14-5; elytr. 19 ; femor. post. 11*8 ; ovipos. 11 millim. 



2 . Long. corp. 16 ; elytr. 18 ; femor. post. 12 ; ovipos. 13 millim. 



3 . Long. corp. 14*8; elytr. 19'5 ; femor. post. 11 "4 millim. 



Figuee. — Fig. 25, tbe terminal joints of the maxillary palpus, c? • 



Hal. Mexico, Teapa in Tabasco (H. H. Smith) ; Panama, Bugaba (Champion). 



Belongs to the group of 0. antillarum and 0. dominguensis, its hind femora being 

 attenuated at the end ; but it is of smaller size than these species, and the speculum 



