BY EDWAKD NEWMAN. 



371 



ad orem sitae, apice crassiores, ll-articulataej articulo 3°. elongate, 

 deinde ad 7"". breviores atque extus incrassati, 8"*. ad ultimum 

 crassiores : oculi reniformes haud prominentes : labrum f.rans- 

 versum, antice convexiim ; mandibulae validae, incurvae, apice 

 acutae intus serratae ; maxillaruni lacinia elongata, tenuis, apice 

 acuta, basi constricta ; galea lacini^ longior apice pilis longis 

 instructa; maxipalpi 3-articulati, articulus 1"'. subcylindricus, 

 elongatus, 2"". brevior extus crassior, 3"^ securiforniis ; labium 

 rotundatum, labipalpi breves 2-articulati, ligula in 2 magnos lobos 

 rotundatos divisa : prothorax capite paullo longior antice longe 

 angustior postice paullo latior, antice posticeque truncatus, elytra 

 elongata, postice attenuata, apicibus rotundatis ; pedes elongati 

 heteromeri, unguiculi simplices, pulvinuli ovales. 



Ceph. Lepturides. Testacea, tenuiter tomentosa : oculi nigri 

 capitis vertex, protkoracis latera, metafemorum apices, meso- et 

 metatihiarum apices, tarsique omnes fusca. (Corp. long. '5 

 unc. ; lat. '1125 unc.) 



It inhabits Canada and the United States of North America. 

 A single specimen was taken by Mr. Doubleday, at Trenton 

 Falls. 



Genus. — Macratria, Newman. 



Caput exsertum, porrectum, fere globosum, 

 prothorace vix latius : antennae 11-articu- 

 latae, articuli 1"^. ad 8"™. mediocres, sub- 

 aequales, 9"^ ad 1 1^™. elongati, incrassati : 

 maxipalpi 4-articulati, articulo 1°. brevi, 

 2". magno trigono, 3°. trigone longitudine 

 latiori, 4°. elongate -trigono, latitudine 

 duplo longiori : prothorax linearis, capite 

 fere duplo longior : elytra linearia, capite 

 fer^ tripl6 longiora. 



Macr. linearis. Olivaceum, fere nigrum, hirsutum, os et palpi 

 testacea: antennarum basi testaceo, apice fusco : pedes testacei^ 

 femoribus extus saturatioribus. (Corp. long. "IS unc. ; lat. 

 •025 unc.) 



Inhabits the United States of North America. Mr. Foster 

 twice took it in the neighbourhood of Mount Pleasant, in 

 Ohio. 



NO. IV. VOL. V. 3 C 



