"/» lii<ht-( hiii'.x ////III, iio/iferii. 425 



\LII. — (hi Iu(ift-('/iinrsr /li/iiifttojtlfrfi rol/rctetl //I/ I>. \'il(iH$ 

 tie Su/i'a::(i. — I. Hy Houlam) E. Tiknkk, I'.Z.S., I'.K.S. 



Family Siricidae. 



Tremex smithi, Cam. 

 Tmnex smithi, Chih. Trails. Knt. Soc. Loiulun, ji. 470 (^1870). $ cJ. 



One female, taken at Vienfr Vai, Haut Mekonj^, on 

 June 10, 1918, differs from the typical form in the total 

 alisenee ot yellow abdominal markin<jjs, in the more distinct 

 l)lne {^loss on the whole insect, and in the almost dear 

 hyaline base of the winj^s, exteiidiuf; on the fore win{^ to 

 the basal nervure and ncrvulus. I do not know whether 

 these distinctions are merely individual or wheiher they 

 iiitlicatea local race. The antenna: are 22-joiMted. 



Tremex Jfavicoil is, Cum . 

 Tremex ftnvicoUit, Cam. MiMii. Mauchester Lit. & Pliil. Sue. xliii. 



One female, taken at ^^ien Poukha, liaut Mekonjr, on- 

 May 11, lyiH, diflcrs Irom the description in having the 

 scuttihim covered with long fulvous hairs, and inhuxing 

 the tilth and sixth tcrgites broadly yellow at the base and 

 clothed with long fulvous pubescence towards the ai)ex. 

 The antennie are ;:il-jointed. 



Xiphy drill mc Ian opus, Cam. 



Xiphu'trin tt.cliniojuis, Cnni. Juurn. Straits \h: K. .■\-5. Soc. .\.\xi.v. 

 p. IKJ (UKi.-{). 



Hah. Nam Lot, llaiit Mekong; May 2, I'.HS. 1 J. 

 Described from Jjornco. 



Family Evaniidae. 



Vristaulacus tuberculiccjis, sp. n. 



!^ . Fcrru^iiiea ; capito fusco-lirru<;iiR'o ; aiitt-tiiiis inaiidil»ulisque 

 iiigiis; alis tlavis, Teiiis ifrnigijieis ; ccllula cultitali primu 

 iiiactda iiuigpa suh eti^niate, (cilida Irachiali sccuiida stri^a 

 uhlitpia hamuli, ncrvuluquu macula oblungu veiiaiu basak'iu 



