i')A HILLKTIN Jfi, I MTi;i) STATKs NATInNAL MI'SKIM. 



Superorder I.— CHILOGNATHA. 



Tliis division is <livisihie into the following oidiMs: 



«. ( oiMilatnry ornaiiH of iiiiili' fornicil liy a tranHt'oriiiiition <if mu' or hoth pairs of 

 \v>^H of seventh se;;iiieiit ; aliineiifiirv trait stiaiulit ; traeliea- Hiiii|il«'. 

 h. Maiidilties and Kiiatlnxliilariuiii rtidiiiKiitary ; labriiiii Niiiuatt>; nioiitli parts 



more or lest* Hiietatorial L'oi,uiio«iNATii.\ • -I. 



hh. N[aii(iilil<>s aii<l uiiathoi'liilariiiiii not rndinientarv ; lahrtini tridentati>; month 



parts not smtatorial Mi.i.Ml\Tll<iM<)Kl'll.\. — II. 



ita. (opnlatory oijrans of inah* formed by ae< e^sory pairs (»f h's^s, sitnated at the ]ioh- 

 terior ]>art of hotly ; hihmm ^innate or nnidentate; ulinitMitary tract bent; 

 triM'liea' branched OxisfoMoKi'UA.— III. 



Ordef I.— COLOBOGNATHA. 



Thi.s onU*r t;ontains the followino- faniily : 



Family I.— POLVZONIID.K. 



.InahiHis of tlir Miih/oiiiilien of l'olff:(>uii<lif. 



a. (iiiatlioi hilariiim re))resontcd by an a<iit»^ trian^^nlar jdate; dorsal plates not .sili- 

 cate; latcrjil carina- not well dev«doited. 

 h, Mody tiliform. ]>ilose; o( elli absent; anal si-ale prcsi'iit; aiitcnn.e -^tronj^ly cla- 



vale; niouth jiarts stronj^ly snctatorial Sii'IKixoi'IIokix.k. — I. 



hi). I)ody wide and depressed, not ])ilose; ocelli pres»'nt; anal scale absent ; anten- 

 na' not 8tron<;ly clavate; month parts less snctatorial. 



I'dl.YZOMIX.K. — II. 



art. (iuathochilarinm well developed, subsiniilar to that of the ./h/k/k ; dorsal plates 



silicate and covere<l with nnnierona short stilf hairs; lateral carina- well 



developed. 



c. Hody tiliform; mentnin roctan<jnlar ; hyjiostoma not well developed; anal 



scale absent; seu;nients not tiibennlatr A\l)i!<t(;XA riiiN i:. — III. 



(■<: Hody wide, depressed; nientnm hamme''-.slia]»ed ; hypostoma well developed; 

 anal scale ]>reseiit; sejnnents tnberonlate Ptatydksmix.k. — 1\'. 



» 



Siibfiiinily F. — SipiionopihhiiNvE, 



Includes tlu' <;cMins Hiithomtphorii Brandt, which is distinj;nished by 

 the chaiacters given tor the subfamily. 



Subfamily 1 1. — PolyzonitNtE. 



Anahjsix of the genera of Polyzonibuv.* 



a. Anterior margin of tirst dorsal plate emarginate, not <<>ncealing the ocelli. 



OCTOGLEXA Wood, 

 nrt. Anterior marjiiu of first dorsal ]>late rounded, advanced forward to the base of 

 the antenna', cimeealing nearly all the ocelli I'oLYZONilMt Brandt. 



* SiphonofiiK T\\-,ix\{\x. Hull. So. Acad. St. Petersb., 1K30. This genus probably 

 belongs to this subfamily. It has two ocelli as in PohizniiiKm. but the antenna' are 

 anb-siniil.ir in form to that of (ieopliiliix. 



\ Vohizonium {^=Phiijiuhix (.ervais, = AWosoHirt Victor, ^^ Pelanerpen Cope, = /'if «- 

 fodenmiis Fanzago, =//jrMrfj'*o»i« Famago, ^^ Hexaglena McNeill. Proc. 1'. .*>. Nat. 

 Mns., S2S, 1887). 



