388 ORTHOPTERA. 



manclibulaB nigra. Pronotum dense et fortiter punctatum, canthis obsolete perspicuis, postice distinc- 

 tioribus ; lobis lateralibus rotundato-angulatis. Elytra hand longissima, femora tamen valde superantia, 

 sparse fusco-punetulata, elevato-reticulata. Campus tympanalis sinister dense retieulatus, speculo tantum 

 extus membranaceo. Pedes breves. Pemora antica anterius spinis 3 ; intermedia 5 ; postica ntrinque 

 spinosa. Lobi sternales acuti. Segmentum anale utrinque obtuse dentatum, apice deflexum. Cerci 

 teretes, acutangulatim incurvi, apice mucronati. Lamina infra-genitalis apice leviter sinuata. 

 6 . Long. 39 ; pronot. 11; elytr. 41 ; femor. post. 17*5 milliin. 



Pistjbe : — Pig. 17, head and pronotum from above, magnified. 



Hab. Costa Rica, San Jose (Biolley). 



CAULOPSIS, Redt. 

 Caulopsis, Redtenbacher, Monogr. der Conoceph. p. 62 (1891) . 

 Tympanum marium in elytro sinistro coriaceo ; in elytro dextro speculo membranaceo. 



l. Caulopsis cuspidata, Scudd. 



Conocephalus cuspidatus, Scudd. Proc. Bost. Soc. Nat. Hist. xx. p. 88 (1879) ; Boliv. Mem. Soc. 



Zool. Fr. i. p. 149 (1888). 

 Caulopsis cuspidata, Redt. Mondgr. der Conoceph. p. 63. 



Hab. Mexico, Durango or Sinaloa (Forrer). — Guiana ; Venezuela ; Antilles, Cuba. 



Not previously known from Mexico, and its occurrence on tbe western coast was not 

 to be expected. 



CONOCE PHALUS, Thunb. 



Conocephalus, Thunberg, Mem. Acad. St. Petersb. v. p. 218 (1815) ; Serville, Hist. Nat. des Ins. 

 Orthopt. p. 514 (1839); Burmeister, Handb. der Ent. ii. p. 704 (1839) ; L. H. Fischer, Orthopt. 

 Europ. p. 245 (1853) ; Stal, Recens. Orthopt. 2, pp. 99, 108 (1874) ; Redtenbacher, Monogr. 

 der Conoceph. p. 64; Fieber; Rambur; Blanchard; Bolivar; Scudder; Brunner v. Wattenwyl. 



Tympanum marium in elytro sinistro coriaceo ; in elytro dextro speculo membranaceo instructo. 



Synopsis specierum *, secundum Redtenbacher. 



a. Verticis rostrum a fastigio frqntis remotum, breve, apice haud mucronatum, latum, obtusum, 

 subtus basi dentatum vel tuberculatum. 

 b. Femora postica subtus nigro-punctata vel femora 4 antica subtus infuscata. 

 c. Verticis rostrum subtus infuscatum vel nigro-fasciatum. 

 d. Femora subtus haud infuscata. 



e. Verticis rostrum breve sed distincte conicum, a supero antice utrinque oblique 

 truncatum. 

 /. Femora intermedia subtus nigro-punctata. Verticis rostrum vix longius quam 

 latius. 

 g. Statura major. Ovipositor longior. — 1. guttatus, Serv. 

 gg. Statura minor. Ovipositor brevis. — [2. pichinchce, Bol.] 



* Including a few species that are likely to be confounded with those of Central America. 



