STUDIES IN THE AMERICAN BUPRESTID.E 177 



published characters. It is stated by LeConte that the anterior tibiae 

 of the male are serrate within; in the type of macilenta the anterior 

 tibiai are almost straight, with the inner margin very finely spiculo- 

 serrate throughout the length; the middle tibiae are longer, feebly 

 arcuate and also finely and closely but less evidently spiculose through- 

 out the length. The hind coxae are rapidly dilated inwardly as usual. 

 Mr. Chas. Schaeffer has lately (Journ. N. Y. Ent. Soc, 1904, p. 

 205) described a Cinyra prosternalis from Texas, and, still more 

 recently, Cinyra purpurascens, from Lower California (Bull. Br. Inst., 

 I, p. 127, 1905). Without being able to decide upon the proper sys- 

 tematic position of these species, it may be safely stated that neither 

 of them can be assigned to Spectralia, the first differing in its feebly and 

 apparently more broadly sinuate epistoma, obsolescent thoracic sul- 

 cus and very different elytral sculpture, and the latter because of its 

 very short elytra, absence of thoracic sulcus, shorter hind tarsi, dif- 

 ferently sculptured abdomen and many other important characters. 

 The antennae in neither of these species is so described as to afford 

 a clue as to whether they belong in this vicinity, or are more closely 

 allied to Anataxis or Nanularia. It is probable that they are not 

 properly assignable to Cinyra, even in its broadest sense. 



Trachykele Mars. 



The species of this genus recently formed the subject of a review 

 by Mr. H. C. Fall (Ent. News, 1906, p. 160), in which the characters 

 of the four known species were given in considerable detail, but no 

 mention was made of the generic characters, nor was any opinion 

 advanced as to the relationships of the genus or its proper position 

 in the family. The separation of the meso- and metasterna by a cleft- 

 like suture, is apparently quite unusual in this family and present only 

 in Nanularia, Cinyra and Trachykele, of those genera discussed in the 

 present paper, but, because of my insuflScient knowledge of exotic 

 types, I am unable to put forward any useful suggestions as to the 

 relative significance of this character in a general analysis of the family. 

 In any event, however, it clearly isolates these three genera from 

 those above them in the table given at the beginning of this paper, and 

 there seems to be, besides, a pronounced tendency in them toward 

 a more mobile connection between the first and second abdominal 

 segments, this feature being especially pronounced in Trachykele, 



