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CICINDELA.— ODONTOCHEILA. 



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51. Cicindela unicolor. 



Cicindela unicolor (Dej.), Chevrolat, Col. Mex. ii. no. 177 (1835) \ 



Hah. Mexico, near the capital (Salle) l . 



* 



A doubtful species ; not in the Salle collection. C. unicolor, Dej., is a well-known 



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variety of C. scutellaris, Say, common in the Atlantic States of North America. 



ODONTOCHEILA. 



Odontocheila, Castelnau, Silberm. Rev. Ent. ii. p. 34 (1834) ; Lacordaire, Gen. Col. i. p. 22 ; 



Chaudoir, Bull. Mosc. I860, iv. p. 269. 

 Cicindela (l re div.), Dej. Spec. Gen. Col. i. p. 21. 



About seventy species of this genus have been described, all Tropical-American, with 

 the exception of a species from Java and Sumatra and another from the Philippines, 

 which agree in form and markings as well as structure with the Tropical- American 

 forms. Baron Chaudoir, however, united the Euryodce of Tropical Africa and India 



with the genus, from which they appear to differ sufficiently in form of body, style of 



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marking, and some minor points of structure to be regarded as generically distinct. 

 Odontocheila differs from the true Cicindelce by no one constant structural character, but 

 by the combination of three characters, not found in conjunction in any species of the 

 typical genus ; these are : — 1, the greatly elongated and toothed labrum ; 2, the existence 

 of a long spine-like bristle at the end of the palpiform lobe of the maxillse; and 3, the 

 grooved tarsi. Of these the second appears the most constant differential character, the 



terminal bristle being either absent or present only as a short slender hair in Cicindela; 

 grooved tarsi are present in many species of the section of Cicindela named Thopeutica 

 by some authors ; and the long-spined labrum is a chief feature of the section Calochroa. 

 I therefore propose to revert to the extension of the genus indicated by Lacordaire, and 

 to include in Odontocheila all those Cicindelce of similar elongate form of body and por- 

 rected labrum which exhibit this peculiarity of armature of the palpiform lobe, although 



of tarsal g 



this will brin 



genus such species as C 



Dej., C. punctum, Klug, and the following new species from Central America. 



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§ 1. Tarsis simplicibus. 



1. Odontocheila leptalis. (Tab. I. fig. 23.) 



. Gracillima, viridi- vel cupreo-senea, sublsevis ; capite post oculos valde angustato, oculis maxime extantibus,, 



vertice late concavo, subtiliter longitudinaliter, collo transversim, strigosis ; labro flavo, basi fusco. elongato, 

 longitudinaliter convexo, margine antico ( £ ) valde producto, dente mediano valido, alteris utrinque tribus 

 parvis, obtusis, ( $ ) margine baud producto, edentato ; thoraee elongato cylindrico, antice et postiee argute 

 constricto, dorso subtiliter sparsim strigoso; elytris subcylindricis, apiee eonjunctim rotundatis, dorso 

 subsparsim, antice magis, postiee minus profunde punctatis ; corpore subtus glabro, impunctato ; antennis, 

 palpis pedibusque (gracillimis) fulvis,. 

 Long. 3f-4 lin. tf $ . 



Hal. Mexico, Cerro de Plumas (Hoge), Juquila (JBoucard, coll. Salle). 













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