ORDER—-ANOPLURA. 
Famity—LIOTHEID. 
Genus—ANCISTRONA. 
Corpus valde depressum: caput fere semicirculare, margine postico valde emarginato ; subtus pone mentum 
processu magno corneo bipartito, utrinque cornu latum profunde incisum, sub prosternum reflexum formante 
(fig. 4a, caput infra visum ; 40, processus pars lateralis lateraliter visa); antennz obsolete? (haud discernende, 
in orbitu suborbitali abscondite ?). Mentum magnum, parte antica (labium ?) paullo dilatata, setis 4 longis retro 
extensis instructum ; palpi labiales haud discernendi; labrum parvum transversum ; mandibule valid cornee 
subtrigone apice bifido (fig. 4c) ; maxille lobo elongato ovali terminate, palpis maxillaribus brevibus 4-articu- 
latis (fig. 4.¢); prothorax semicircularis, capitis magnitudine, medio lateribusque sulcatis, his longe setosis, setis 
retro porrectis; metathorax abdomine continuus; abdomen e segmentis 10 constans; pedes breves, femoribus, 
presertim anticis, dilatatis. 
The remarkable corneous apparatus on the under side of the head occurs in no other species of the order 
hitherto described. 
There is a curious organ with a horny central rib, fureate at its extremity, within the mouth, represented 
in fig. 4e. 
Spectres 1—ANCISTRONA PROCELLARL#. 
Puatt XXXVII, Fic. 4. 
Piceo-nigra, nitida, levissima: ecapite castaneo, angulis posticis rotundatis, retro porrectis et longe setosis, 
foveis duabus rotundatis prope marginem anticum, maculis duabus pallidis prope basin capitis ; thorace castaneo 
suturis piceis; margine laterali segmentorum ultimorum abdominalium pallide castaneo. 
Long. corp. lin. 2%. 
Habitat in Procellariam Capensem (DD. Rob. Brown et W. Baird). In Mus. Britann. et Hopeiano 
Oxoniz (olim nostr.) 
Famity—POLYCTENID. 
Insecta parasitica, anomala, affinitatem cum Hemipteris exhibentia. 
Caput magnum depressum, antice subtrigonum rotundatum, divisione magna lunata inermi (clypeo ?) antice 
instructum ; angulis posticis prominentibus ; subtus antice (sed pone clypeum) antennis 4-articulatis lateraliter 
et retro extensis, basi ad basin impressionis profunde reniformis lateralis (cujus margines sunt valde serrate—an 
trabeculis Docophori, ete. analoga?) affixis; proboscis cylindrica fere capitis longitudine 3-articulata, intus setis 
armata ut in Hemipteris ; prothorax magnus; meso- et metathorax transversi ; mesonoto appendiculis duabus 
elytriformibus brevibus subquadratis aut postice rotundatis instructo, sutura recta coalitis; abdomen distincte 
multi-(8- 9-)annulatum, setosum, in uno sexu (fcemina?) appendice longo tenui curvato corneo canaliculato ; 
pedes antici breves crassi, postici 4 elongati setis longis; tarsi 8-articulati, articulo basali in pedibus 4-posticis 
ad basin subtus lobo membranaceo basali predito; ungues 2 validi acutissimi curvati. 
In the year 1863, Signor H. Giglioli forwarded to me specimens mounted in Canada balsam of two insects 
of different sexes which he had taken at Amoy, China, upon a bat of the Genus Molossus. From the fact of 
their being uniques, and from being rendered very transparent by the manner in which they were preserved, 
