58 



hinc fere ad apicem costam tertiam fere attinet) ante apicem 



sat abrupte truncata, prothoracis basi sat fortiter bisinuata 



(sicut certo adspectu anguli postici nonnihil retrorsum 



directi videntur). Long., 5-| 1.; lat., 1|- 1. 



Apart from the characters noted above the description of 



C. cucullata is an accurate description of this insect, and therefore 



need not be repeated. The markings of the elytra are identical 



in all the specimens that I have seen. The difference in the form 



of the base of the prothorax furnishes a satisfactory structural 



character. 



S. Australia ; Adelaide District. 



C. rostratus, sp. no v. Elongatus ; minus convexus ; minus 

 nitidus ; supra pubescens ; niger, prothoracis lateribus et 

 elytris totis aurantiaco-rufis ; capite minus porrecto, antice 

 rostro manifesto (hoc quam longiori sat latiori) instructo,. 

 inter oculos longitudinaliter minus profunde canaliculato ; 

 prothorace transversim subquadrato, longitudinaliter canali- 

 culato (antice subtiliter, postice profunde), transversim 

 carina obtusa (hac in medio minus perspicua) sinuatim 

 antrorsum ex angulis posticis arcuata instructo, disco postice 

 tuberculis obtusis 2 munitis, lateribus sinuatim subrectis, 

 basi leviter bisinuata, angulis anticis fere nullis posticis fere 

 rectis ; elytris striatis, interstitiis angustis leviter convexis 

 (alternis quam cetera vix magis detinitis) ; antennis quam 

 corporis dimidium vix longioribus, modice compressis, 

 articulis 3 C 4° que longitudine sat sequalibus. 

 Maris segmento ventrali septimo profunde emarginato. 

 Ferninre segmento ventrali septimo profunde fere ad basin 

 triangulariter impresso et ad apicem emarginato. Long., 41.; 

 lat., 14 1. (vix). 

 The comparatively slight exsertion of the head in this species 

 together with the presence of a distinct rostrum and the scarcely 

 noticeable dilatation of the front femora in the male renders this 

 species very distinct from any other Australian Calochromus 

 known to me. All these characters, however, seem to be present 

 in some of the species from other countries described in Mr. 

 Waterhouse's monograph of the genus (Cist. Ent., II.), the essen- 

 tial character of Calochromus among the Lycides being there 

 regarded as the "absence from the elytra of distinct carina 

 separated by rows of punctures " together with the presence of 

 seven ventral segments. In the species before me an excessively 

 short basal ventral segment is certainly present in the male ; in 

 the female I am not so sure of there being seven segments but 

 probably there is an extremely short basal one which would be 

 discernible if the hind body were broken off. The sculpture of 

 the prothorax also differs from that of any other Australian 



