368 Mr. G. J. Arrow on the 



decumbent scales, and having the last joint of the maxillarj 

 palpus greatly enlarged and channelled along almost its 

 entire length. Congeneric with this is a species doubtfully 

 referred to Trihostethes by Philippi as T. virens, and said 

 to be allied to " Amhlyterus variabilis " ; but what insect he 

 spoke of by this name I am unable to discover. The common 

 Chilian Aulacopalpus viridis of Burmeister is an insect of 

 entirely different appearance, which may be distinguished by 

 the name of Hylamorpha. Its chief generic characteristics 

 are the dense clothing of scaly hairs upon the abdomen, the 

 undivided claws, and the transverse clypeus. It has been 

 characterized in detail by Burmeister. //. viridis, Burm., is 

 the only species of this genus at present described, for ^w/aco- 

 paJpus angustus, Philippi, must be transferred to the genus 

 BrachysternuSj with which it agrees in all essential points, 

 having only a superficial likeness to H. elegans. 



The following are two new species oi Hylamorpha : — 



Hylamorpjha rujimana^ sp. n. 



H. eleganti aiRnis, supra prasina, tota punctato-rugosa ; abdomine 

 nigro, albido-setoso, ore, antennis, pectore, pedibus anticis, ali- 

 orum tarsisque rufo-castaneis ; tibiis posticis viridi-aureis ; clypeo 

 subquadrato, brunneo-marginato, margine parum reflexo ; pro- 

 thorace valde transverse, medio profunde sulcato. 



Long. 15 mm. 



Ilab. Chili. 



This insect is rather less elongated than H. eleyans, ^urm., 

 the margin of the clypeus is less reflexed, and the anterior 

 legs are without a trace of green. 



Hylamorpha cylindrica, sp. n. 



Olivacea ; capite, prothorace, tibiisque anticis prasinis, prothoracis 

 lateribus aureis, corpora subtus tarsisque castaneis, pectore fulvo- 

 piloso ; abdomine pilis albo-luteis obtecto ; capite magno, clypei 

 margine brunneo, reflexo ; prothorace cum capite punctato-rugoso, 

 lateribus regulariter arcuatis baud angulatis, margine postico vix 

 lobato ; elytris rugose punctato-striatis, crebre piliferis. 



JiOng, 18 mm. 



Hob. Chili. 



H. cylindrica is rather less flattened above than the other 

 two species. The elytra are not truncated behind and are 

 somewhat densely clothed with setifi. The rounded sides of 

 the thorax and the large head are also distinctive. 



