464 Mr. WzsrTwoobp on some new Species of Athyreus, 
Hab. In Insulá Hayti, Indie occidentalis. DD. Tweedy et Hearne. In Muss. Soc. Ent. 
Londin. et Hope. 
Punctatissimus et setosus. Caput mediocre, vertice parüm concavo, cariná tenuissimá trans- 
versá e clypeo separato. Clypeus transversus, brevis, angulis anticis rotundatis, medio 
in angulum parvum producto. Mandibulz extüs sinuate. Pronotum maximum, lateri- 
bus angularibus, angulis posticis obtusis, anticé valdé declive, tuberculo parvo conico 
elevato in medio juxta marginem anticum ; carine due oblique curvatze feré ad mar- 
ginem posticum extensze, spatio interjecto levi concavo linea profundiori media ad scu- 
tellum ducta, lined alterá breviori obliquá utrinque angulis humeralibus elytrorum 
oppositá ; impressione rotundatá juxta angulos laterales pronoti. Elytra brevia, semi- 
circularia, tenuissimé punctata striisque impressis praesertim ad basin instructis $ 
humeris elevatis striâque suturali magis distinctá. Tibiæ anticæ extùs 7-dentate. 
Fig. 14a. Caput et pronotum a latere visa. 
From the very incomplete manner in which the Count De Castelnau de- 
scribed many of the insects in M. Gory's collection, I have thought it useful 
to add figures of the head and thorax of the three following species described 
by him, from the type specimens now in Mr. Hope's collection. 
 ATHYREUS EXCAVATUS, Laporte, An. Art. ii. p. 103 (Juvencus, Dg.). Cayenne. 
Tas. XXII. fig. 9. Caput et pronotum supra visa. 
ATHYREUS BICOLOR, Laporte, An. Art. ii. p.103. New Grenada. 
Tas. XXII. fig. 10. Caput et pronotum supra visa. 
ATHYREUS 6-DENTATUS, Laporte, An. Art. ii. p.103. Paraguay.. 
Tas. XXII. fig. 11. Caput et pronotum supra visa. 
Oss. Athyreus recticornis, Guérin, Iconogr. du Régne An. Ins. p. 83, from 
Swan River (Mus. Gory), is identical with Bolboceras hastifer, Bainbridge. 
_. Oss. The insect placed in M. Gory’s collection, with the label of Athyreus 
porcatus, De Laporte, Anim. Artic. t. ii. p. 103. no. 6, (Athyreus Senegalensis, 
Dejean,) is a new species of Bolboceras, from Senegal. 
Species added subsequent to the reading of the Paper. 
12. ArüYREUS FOsSULATUS (Tan. XXII. fig. 15); piceo-niger minutissime granulatus, 
capitis disco plano margine antico in cornu acutum super clypeum porrecto angulis 
lateralibus acutis, pronoto fossulá medià profunda lzvi lateribusque granulatis ;. parte 
fossulatá carinis duabus elevatis angustis glabris posticé parum incurvis marginatá ; 
