27 



i'lciiruiii. — The ('i>im('r;i and ('iiislcriia arc rall:ci' lar;^c, w liilf tlir coxa' 

 and troclianliiics arc sliorlcr and l)n)adcr tlian in the Xorlu'ida: 



Xi/Sintirlir (^^ijgirna near li)ii'ia>ra\ pi 7, liiij. 17, 17'/). — I'crguin. — Meso- 

 scnliiiu sonicw liat ('(impressed, narmwinif in iVont ; sciilellnni as lon;^ as wide, 

 \vcll-i'(inii(led iiostcrioily ; nielascntnni willi the (wo halves widely se|)ara(e(l 

 \)\ a distance eipial to the width of the scntelliini. 



I'lenrnni. — Epinicra and episterna of (ho niesothorax very Ijroad. 'J'lic 

 nics()-tr()(dian(ines and coxa' unusually short and l)r()ad, (he trocluuitiiies (.'spc;- 

 c'ially niuth swollen. 



^■Eiirriddii- (^■7'!s^i'ri(i .sr/'/ii/u Ilai'ris, jil. 7, liii;. IS, iScr). — Xotwitlistanding 

 (he slenderness of the liody, the thorax is (juite spherical, in some respects 

 much as in y^i/i^nufi, while along (he tcrgum (h(> thorax is rather long and 

 iiarro\\'; the llaidvs ai'c shoi't and liroad. 



Tergum — The tegnla', wliich I have not hi(her(o attempted to descrilie, 

 are very large and hroad. JJemoving tluMU, (he mesoscntum is seen to Ix; 

 remarkahly long and narrow, not much wider (han the scutcllum. The latter 

 is as long as wide, well jminted hehind. The (wo halves ol" (he ine(ascutuni 

 nearly (ouch each other; scutellum very small, in the form of a ilattcued (ri- 

 angle. 



Plcurum. — While the t]anks of (he [jrothorax are rather more slender 

 than usual, more so (han in Xi/ga:iia, those of the two hinder segments, espe- 

 cially the metathorax, are shorter and broader. The epimcral and ep;s(crnal 

 pieces ol" (he two hinder segm(aits are large and broad. The cox;e and tio- 

 cliantines are very short and l)road, particularly the meta-troehantine, where 

 in Zijgfviia and I'tlca it is long and comparatively slender. 



Sj)/iingid(r {l)ci/fj)hila Uiieata, pi. 7. ng. 19, 19r^). — In the thorax of 

 yEgcrid we have a close approxima(ion to (hat oi' Dei/cj'fiila and the Splih/gidtc 

 generally, as well as the I'djnUonidce, as shown in the short, broad, lull Hunks 

 and very long, narrow mesoscntum. 



Tergum. — Mesoscntum long and narrow, slighdy wider (han in yEgeria. 

 Sculum much shorter [)osteriorly (han in yEgcria. The metathorax is v(>ry 

 short, the two halves of the scutum arc small, \vid(dy separa(ed by a dis(ance 

 nearly c(jualing (he \vid(h of (he scu(ellmn. 'i'lie latter is shorter than in any 

 ol (he previous tamilies, forming a sinuous transverse ridge. 



PIcurum. — The epiniera and episterna are short and very broad, while 

 the coxif and trojhantines are verv sliort and broad. The middle Irocliau- 



