232 mocia'UHXcs or riii'. smiosm, mvsfjm. v..i,.x.\i. 



Ono, CriiiJilc n'sinid from a (JcAuyplastcx^ \\\Mn\ \\ lofiiiniinouH trcM', col 

 loci (Ml at (Jiiiiyinns, Mexican, Hcptcnibor 131, 1S«H, by Prof. (1. II. Tyler 

 'J\)\vns(Mi(i. 



Tiipe.-No. r.021, II.8.N.M. 



TETRACNEMOIDEA, now qonus. 



Frmalc. — A Hinall, I'utlicr slonl-boHicd form, with lli<' nlxloincii com 

 prcsscil I'rom Mic Hides; cpisloma plainly ciiriiial.c; (\vcs\v«',ll soparalcd; 

 ocelli lovmii)^ an ohtiiHC anfjflcd triaiijjlc; thorax willi llic axillae not. 

 (lillcrcnliatcd by a suliirc; Kcul.cllnm ronndcd at tip; win^s with a 

 IMMU'liform marginal vein, post Miaij^inal and sli^nial very Hlioit; 

 antennae inseitcd neai- month, Mcap(4 slender, cyliiidri(;al, lla^ollum 

 about twice as lonj; as scai)e. club slightly enlarj^'cil, oval; ])e<licol 

 t\vic(^ as lonj;- as Innicle Joint, tirst fnnicle joint slij^htly lonjit'i' than 

 wid(!, others increasing;' sonu'what in width, l)nt reniainin}; snbe»iual in 

 length. 



Male. — This is one of the forms with branched antennae, and resem- 

 bles tln^ lemale ex<'(^pt in this r(\s|)ec,l : .Joints 1 to 4 of tlu' funicle each 

 bears a. ratluM- lonj;', hairy branch ; joints 5 and (! without branch; Joints 

 ] t(» 1 siilxMpial in huij^th, I rather shoiter than others; JointHless than 

 half as \o\\[f as 1, (i a little longer; club as loii}; as 5 and (» logetluM'. 



TETRACNEMOIDEA AUSTRALIAENSIS, new species. 



Female. — Ijcufjth, 0.07 mm.; ex])anse, U.lf) mm.; <;r(Mitcst wi<lth of 

 forewiuf;, ()..">!> mm. (lenera! color black, with sli^jfht fj;reeuish, metallic- 

 rellections on thorax; antennae dark brown; le{;s honey yellow, hind 

 femoia bi'(>wnish above; winj;s hyaline. Head and thorax rather 

 d(^licat(^ly reticulate, faintly liistious; ])leura. ami abdomen smooth, 

 shining'. 



Mate. — lv.eseMd>*l(\s femah^ Cixcept in <;«MM>.ric and sexual characters 

 and the foIlowin«;-: llin<i h^jis brown throughout, middle tibiae some- 

 times slifjhtly darkened. 



Described from (en lenniles, foui- males, leared at Sidney, Australia, 

 March, 1S!»L', IVom a Pa<'tj/I<>i>iiis on I'illsponim, by Mr. A. Ivoebele. 



7'^//>r.— No. 5022, II.S.N.M. 



I^AKAPSILOPHRYS, now c)onus. 



lv»'send)les I'silo/>hn/s in tlu' i)eculiar antennae, but didera mainly in 

 s<'nlpture, in the possession of a faint marginal cilia to the tbrewin}»s, 

 and in the (^xtiiunely lonj;' ovipositor. Also comes closer to Tineojfltae- 

 toiiiiN, dilf(Miu<; principally in aintenna(^ and venation. 



Female. — Body lonjf, lather slender; abdonu'U as 1(mi<>' as head and 

 thorax together; antennae long, slender, inserted Just above month 

 border; scape reaching ab()Vt^ vertex, shMuler, (rylimliical; pedicel thiee 

 times as long as thick; lirst fnnicle Joint longeithan pedici'l, remaining 

 Joints decr(>asiiig slightly in h^ngth to sixth, which is only about twice 



