210 MB. B. M'LACHLAN ON NEW-ZEALAND TBIOHOPTERA. 



&enus PsiLOCHOBEMA, WZacTilan. 



PSILOCHOREMA CONFUSUM, n. Sp. 



Fuscum : antennse flavae, intlistincte fusco-annulatse, articulo basali 

 aureo-hirsuto : alae anticae pallide fuscae, flavo nigroque lanuginoso- 

 pubescentes; fascia transversa ante apieem signaturisque nonnullis pal- 

 lidis, inconspicuis j maris venis venulisque valde irregularibus ; postioa; 

 fuliginoso-subhyalinse : pedes pallide flavi ; tibiis tarsisque anterioribus 

 intermediisque extus fuscescentibus : abdomen fuscum, infra segmentis 

 flavido-marginatis ; maris appendicibus inferioribus elongatis, sub- 

 graeilibus, decussatis, torquatis ; feminae segmento penultimo ven- 

 trali penicillo instructo. 



Long. Corp. 2'" ; exp. alar. 7"'< 



Head — antenncs yellow, very indistinctly annulated with fuscous ; basal 

 joint with golden-yellow hairs ; vertex testaceous, fuscous, thickly 

 clothed with golden-yellow hairs ; palpi fuscous ; ocelli yellow. 



Thorax — prothorax indistinct, clothed with golden-yellow hairs ; meso- 

 and metathorax fuscous (the hairy clothing is rubbed off in my 

 examples). 



Wings— anterior wings pale-brown, with pale-yellow woolly clothing, 

 mixed with black, especially on the cubitus ; an indistinct, whitish, 

 wavy transverse fascia before the apex, and some markings on the 

 disk (this pale fascia and markings are not caused by the clothing of 

 the wings, but are pale spaces in the membrane itself) ; fringes pale 

 golden-brown ; pterostigma elongate, darker ; neuration extremely 

 irregular and aberrant in the 3 in both pairs of wings, regular in the 

 ? (I despair of being able to draw up an intelligible description of 

 the veining of the wings of the S , and refer the reader to the figures 

 on Plate II. fig. 10 ; the discoidal cell is there represented as closed 

 by a dotted line ; there is little doubt that the veinlet closing this 

 cell is really present, but I have not been able to see it very clearly ; 

 it is certainly very fine) : posterior wings smoky-grey, subhyaline, 

 iridescent ; fringes grey. 



Legs pale-yellow ; anterior and intermediate tibiae and tarsi, especially in 

 the $ , somewhat fuscescent externally. 



Abdomen fuscous; the apical margin of each ventral segment broadly 

 dingy-yellowish ; appendices yellow. In the <? is a short straight 

 lobe from under the middle of the apical margin of the last dorsal 

 segment ; app. sup. apparently wanting ; app. inf. very long and 

 slender, bent in the middle almost at right angles, the apical portion 

 being directed outwards ; at the base of these appendices, viewed from 

 beneath, are two valve-like lower sheaths, placed close together. In 

 the ? the last dorsal segment is produced in the middle into a broad 

 obtuse lobe ; the penultimate ventral segment bears a tuft of hairs 



