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ETJCHKOA.— ABAEIS. 



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species extending to the banks of the Plata. The genus belongs to a group almost 

 entitled to the rank of a subfamily, the labial, and sometimes also the maxillary, palpi 

 being more or less securiform. 







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l. Euchroa dimidiata. (Tab. I v. fig. 11.) 



Euchroa dimidiata, Chaudoir, Bull. Mosc. xliv. 2, p. 279 (1874) \ 



Hab. Mexico, Oaxaca {Salle \ Edge), Parada, Istepec (Salle). 

















2. Euchroa nitidipennis. (Tab. IV. fig. 10.) 















Euchroa nitidipennis, Putzeys, Mem. Soc. Roy. Sci. de Liege, ii. 1846, p. 403 \ 



Hab. Mexico 1 , Orizaba, Jalapa, Maltrato {Salle) , Las Vigas (Hbge). 





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Nearly all the numerous examples taken by Hoge at Las Vigas present a form of 

 thorax slightly different from the Maltrato and Orizaba specimens of Salle, the differ- 

 ence consisting in the stronger arcuation of the sides before and near the middle, by 







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which the posterior narrowing is rendered less gradual. A Jalapa example is inter- 



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mediate in this respect. The size varies greatly, from 4J to 6-J- lines (9-14 millim.). The 





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colour of the thorax in all is violet. Although the convexity of the elytral interstices 

 varies in degree, they are always more or less flattened towards the apex, a character 





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which distinguishes the species from JE. sallcei. 



3. Euchroa flohri. 









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E. nitidipenni valde affinis, sed differt capite et thorace lsete seneo-viridibus elytrisque splendide aurato-cupreis ; 

 capite sicut in E. nitidipenni ; thorace fere quadrato, ante apicem tantum leviter rotundato-dilatato ; elytris 

 proftmde striatis, interstitiis convexis, prope apicem haud angustioribus ; corpore subtus pedibusque cyaneis. 



Long. 5^ lin. <J $ . 



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Hab. Mexico, Quecholac (Flohr). 





In colours similar to E. dimidiata, but in form much more slender and the prosternum 



not margined between the anterior coxae. 



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4. Euchroa sallaei 



Euchroa sallei, Chaudoir, Bull. Mosc. xliv. 2, p. 280 \ 



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Hab. Mexico \ Cordova (Salle). 











ABAEIS. 



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Abaris, Dejean, Sp. Gen. Col. v. p. 780 (1831). 







Abarys, Chaudoir, Bull. Mosc. xlvii. p. 96 (1874). 



















As restricted by Chaudoir, this genus contains six species (two unknown to him 



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A. picipes and A. striolata, Bates), all Tropical American. The claws of the tarsi are 

 finely pectinated. It is not closely allied to any of the preceding genera of the 





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subfamily. 





















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