208 JOURNAL OF SCIENCE. 
Notwithstanding this, however, there can, as Mr. Walcott 
says, be no longer any reasonable doubt that the affinities of the 
trilobite are with Lzzlus and its allies. This group of animals 
he raises to the rank of a class—the Peecilopoda,—placing it 
between the Crustacea and the Arachnida. He divides this 
class into two sub-classes—(1) JZerostomata, including the two 
orders Xiphosura (Limulus) and Eurypteride ; (2) and Paleode, 
with the single order 77z/odzta. 
In thus making the Pzecilopoda intermediate between the 
Crustacea and the Arachnida, Mr. Walcott adopts the views of 
Professors A. Milne Edwards, Gegenbaur, and E. Verrill; on 
the other hand, however, Professor E. Ray Lankester, in a 
paper, “Limulus an: Arachnid,” published in the “ Quarterly 
Journal of Microscopical Science” for July and October, 1881, 
appears to have conclusively proved that Lzsalus is not a 
Crustacean at all, but an Arachnid, which is best understood 
“as a marine scorpion.” Hence the Xiphosura must be placed 
among the Arachnida and the Eurypterida, and Trilobita must 
of course follow them; so that the trilobites, which, after much 
buffeting to and fro, had settled down quietly as Crustaceans, 
must now leave the resting place they have enjoyed for many 
years, and march over to rank themselves along with the 
Arachnida. , 
NEW ZEALAND MICRO-LEPIDOPTERA.* | 
(ABSTRACT,) 
——_ << —__ 
FAM. ERECHTHIADA, 
Genus LEschatotypa, Meyrick. 
Head rough all over, tufted between eyes; with ocelli; no 
tongue. Antenne shorter than fore-wings, somewhat thickened 
in male, basal joint slightly broader. Maxillary palpi long, 
folded. Labial palpi moderately long, porrected, second joint 
with a few bristles above, and clothed beneath with short pro- 
jecting hairs, especially at apex; terminal joint much shorter — 
than second, bluntly pointed, loosely scaled. Fore-wings elon- 
gate, somewhat dilated, hind-margin very obliquely rounded, 
Hind-wings ovate-lanceolate, rather narrower than fore-wings, 
cilia narrower. Abdomen rather elongate. Legs moderate, 
posterior tibia smoothly scaled, beneath fringed with long hairs. 
Fore-wings with 12 separate veins; 5 branches to hind-margin ; 
sub-costal obsolete towards base ; secondary cell indicated ; 1 
furcate at base. Hind-wings with 8 veins, sub-costal obsolete 
before middle ; 5 and 6 stalked, 6 running to hind-margin. 
This genus differs from all the rest of the family, in 
possessing 12 veins (all separate) in the fore-wings, and is pro- — 
portionately somewhat broader winged. In repose the apex of 
a —<——$ $$ 
* Continued from page 173. 
