206 



THE AMERICAN 



A METHODICAL TABLE OP THE CRICKETS. 



Dear Sir: I send you a Tableau Methodique 

 of the Crickets iGryllidm), which I have made 

 up from "Wallier's Catalogue of this family— a 

 work just issued, and which embraces not only 

 the specimens in the British Museum, but all 

 the species described up to the time of its issue. 

 I have also added a list of the North American 

 species of this family, not included in Mr. Scud- 

 der's Catalogue. C. Thomas. 



Wasuisgton, D I' , March 14, 1870. 



Order, ORTHOPTERA. 

 Sect. 2, Saltatoria. 

 a. — Vorw uiii^s horizoutal in repose. (iuVLLliiJi. 



aa.— Fori' wiii^s ilefli-xeJ iu reiJOse. 

 /..— Aiitt'iiiKB long, sftaceous; tarsi 



4-juintid. LocrsTiD.i:. 



hh. — Aiitenn;u rilifonii, generally rathi'r 



short. AcRii)ii),K. 



FaM. 1— GUYLLIl)^. 

 Gnjtlides, Latr.; tf/'yKjVwt, Macleay ; AcheiiJa; Leaeli; 

 (rn/Uoiiea, Burni. ; Achetina, Newin. 

 ^.— Fore legs I'ossorial. 



b. Hind tarsi of tlie usual form. 



c. Tarsi 3-jointed. 



il. Fore tibia hexadac-tvlate . Gnjllotalpa, Lutt. 



dd. Fore tibia diciaftylatc Scapteriscus, Scudd. 



cc. Tarsi 2-1 oin ted Cylindrodes, Gruy . 



bb. Hind taivi Hat. ,li-itate. 



c. Four aiiiciioi- tai-i ::-J..iuted. *'fridacti/lus. Oliv. 

 oc. Four ;iiii. ih.i- t:ir-i J-jointcd. *A'/iipij/teryx,!!lewui. 

 AA.—Vovi' hu- iiMt In-. , rial. 

 b. Head . MM,(al(Mi. *Myrmecophila, Latr. 



bb. Hu:M |iroi„i,i,.„i. 



g. For,. »i„.-„.il xrryluug 



li. Froth. .i-a\ 11..I \ ri\- narrow 



i. Hindlr--Muul...ri,„,d«_Tati.-k-n-lli. 



j. Hind tiliiiL- witli stout approximate spines. 



k. Tarsi 4-joiuted. Acheia, Fabr. 



Ml. Tarsi 3-jointed. 



1. First joint of the hind tarsi setulose. 



3rachytrypes, Serv. 

 ftlic- Ifiud tarsi smoolli. 



U. Fir 



'-tinillu^, Linn. 

 Plattji-yphus. Haan . 

 *Mlguplistee, Serv. 



na. Hea.l ,„i„.mI in iVonl 

 mm. Hca.l rid-vd l.riu.-r 

 n. Hindtar-i 11, .1 -, rralrd. 



0. Fore \vin,y» riyularl\ retieulated. * Tafa,luca, Walk. 

 1)0. Fore wings u-regularly reticulated. 



p. Hind tibia; not serrated. Casnidma. Walk. 



pp. Hind tibia; serrated. Nessn, Walk. 



.ij . Hind tibiie with slender, widc-apart spurs. 

 *. Fore wings generally abbreviated. 



1. Legs not very hairy. 



m. Spines of the hind tibioe not very long. 



*Bemahiui. Serw 

 n.m. niiidtilii:r Willi \ erv long.spiues. Argizala,^^ •aW'. . 

 II. !,■-'- ^^r^ haiiv. *napithua, Uhler. 



in. Fur 

 H. Fort 

 0. Prot 

 p. Hea. 

 11. Foro 



,_ with \.iii> iM.y.iii.l the ivinpanum ir- 

 regular. *On,charls, Uhler. 

 '. Fore wings with xciiis bevond the tympanum 

 regular. Itara, Walk. 



pp. Head prominent between the eyes. 



Aadasumma. Walk. 

 00. Prothora.x much broader than the head. 



Loheda. Walk . 

 ,,„. Fore Willi- of the male verv broad. 

 (-. I.. .-n..i -.!> -Irn.1,'1-. ' E>„ '^1,1, 1,1. \im-n\. 



":',. V ■ n.iiTMW.-riulVoiit. ' /:•.,;./„,. Walk. 



/,,.. \-... Mill, I, iKirn.wcrin j L^rn^ia. Walk. 



I '( ..Sutetuniu, Walk. 



aderopterus. Ua 



ii. Mind 

 ;. P'ore 

 -k. Eves 1 

 I. Seeon. 



J\Hh. 



II. Second joint of the hind tarsi hardlv appari iil. 



m. Wings complete. *j'latyj,i,-i,/l>i.<. Urulli. 



mm. 'WinKs none. 



« . Spine.s'of the hind tibia- very short L.o au,l,i. Walk. 



nil. .'Spini's of the hind tibia' long. *Zaora.\\Mi.. 



H\ Evi's very prominent. 



1 LcL's >tout. Orhega, Walk. 



//. J-.-g> siciidi.r. Nuitra. Walk. 



i'lh.' Pro'tli'n'r.aVve'ry l..n- and narrow 



/. Head eloni;atrd. -(ELanthus. rirvy. 



ii. Headnoi .■l.>ngat.-d, 'Laiirepa, Walk. 



gg. Fore wings extremely long. 



h. Body stout^ Tarmga, Walk. 



hh. Body \ery slender. Nocera. Walk. 



if. Third joint of the maxillary palpi 



directly truncated. Ti igonidium, Ramb. 



ec. Four anterior le.irs very long. 

 /. Hind femora not abruptly attenuated. 



Luzara. Walk. 

 //. Hind femora abruptly attenuated 



beyontl the middle. * Phalaiigopsis, Si'rv. 



dd. Hind tibia; without lateral spines. 

 e. Prothorax produced hindward. * Cycloptilum. Scud. 

 ee. Prothorax not produced hindward. 

 /. Bodv stout. OriuHus., iixU'Y. 



ff. Body \ cry slender XaJra, Walk. 



cc. l<\ice very Hat. Platyblemmus, Scrv. 



a list of species of guvllid^ not includku in 

 soudder's catalogue of okthopteka. 



Gryllus septentriorMlis , Walk. pg. 18. Mexico, St. Dom. 

 •' .luHdus, " 18. Vera Cruz. 



" determinatm, '.' Ii). .Taniaii-a. 



•' Hmilaris, " 20. St Domingo. 



" anguftulus, " 21. Jamaica. 



'• coniingem, "' 21. Jamaica. 



" signaiipes, " 22. W. coast Am. 



f Scudd., Pro. Bost. ] 

 Mogoplistea oceidentalisA Sac. Nat. Hist. > Lower Cal. 



{.Walk. p. 52. J 

 Tafalisca lurida. Walk. p. .")3. St. Domingo. 



Nemohius mexieanus , '• 7>~. Ojaco, Mex. 



I Scudd., Pro. Sost. ] 

 " circumcinctus.i Soc. Nat. Mist. > Mc.vico. 

 1 Walk. p. 57. ) 



Hapithua yuadratus. Scudd., Cent. Dec. Gryll. Texas . 

 Orocharis signutus. Walk. p. 61. Mexico. 



•' ecitulus, " 62. Honduras. 



fuaiformia, "63. 



Eneoptera insularly, Walk. p. 66. Jamaica. 



Phyilopalpua latiptnnis, " 68. " 



*' nigrovariua. *' TO. Mexico. 



LebusaaUnuicornia, " 75. St. Domingo. 



Platydaetylua eimilia, " 78. " 



Ziiora cinctipea , " 89. Jamaica. 



(Ecanihua nigricomia , " 93. IlUnois. 



Me 



" form^aits, 

 Laurie valida, 



i»4. 



