of the Genus Panorpa, &c. 193 
Genus Merore, Newman. 
Caput breve, sub prothoracem fere occultum ; subtus in rostrum 
longitudine mediocre productum. Antenne inter oculos in- 
serte, basi contigue dimidio corpore vix breviores hirte, 
30-articulate ; articulo 1mo crasso, 2do minori, 3tio minimo, 
4to ad 10m sensim magnitudine crescentibus discretis trans- 
versis ; reliquis 20 sensim decrescentibus apicalibus minutis- 
simis. Ocelli 0. Oculi laterales, reniformes, supra in verticem 
conjuncti. Z'vrophi mediocriter elongati, rostrum formantes. 
Labrum elongatum, apice acutum. Mandibule plane, cornee, 
rectz, apice dentibus duobus acutis curvatis alteroque interno 
obtuso armata. Mazxille e lobis duobus apicalibus conicis 
extus valde ciliatis conniventibus constantes; palpi loborum 
longitudine curvati, ut mihi videtur 5-articulati, articulo basali 
extus setis longis armato, reliquis irregularibus, ultimo, ut 
videtur, biannulato. Labium subquadratum, angulis anticis 
rotundatis, ciliatis; palpi labiales breves, biarticulati. Pro- 
thorax brevis, transversus ; mesothorace angustior ; meso- et 
metathorax equales majores. Ale haud plicatze latissime, 
apice rotundate, subaequales ; venis multis longitudinalibus 
furcatis, venis minutis transversis connexis; costa Jata in 
areas multas divisa. Pedes graciles, subeequales ; tibiis om- 
nibus apice bicalearatis. Tarsi 5-articulati; unguibus inte- 
gris. Abdomen 2 obesum, apice acutum, appendiculis duobus 
minutis biarticulatis divergentibus terminatum. 
This singular genus (of which a single specimen, collected by 
Mr. E. Doubleday at Trenton Falls, in the United States of North 
America, has hitherto only been seen) possesses so much the ap- 
pearance of a Hemerobius, in the short and very broad posteriorly 
rounded wings, that Mr. Newman, who published a description of 
it in the last volume of the Entomojogical Magazine, was unable 
to decide as to the natural family to which it belonged. Having, 
however, through the kindness of that gentleman, had an oppor- 
tunity of examining and dissecting the mouth of this unique indi- 
vidual, I have been enabled to determine that its natural situation 
is in the present family, with the females of which it further agrees 
in the two minute biarticulate appendages at the extremity of the 
body. ‘The want of ocelli, emarginate eyes, dilated antennz, 
simple ungues, broad wings, together with the singular character 
which the anterior pair of those organs exhibit, in the possession 
of a minute semicircular tuberculous appendage near the base of 
VOL, IV. ) 
