324 MEMOIRS ON THE COLEOPTERA 



7 Broader, more oblong, deep velvety-black, the elytra wholly pale 

 fulvous-orange; prosternum differing sexually as in the preceding 

 species, the pronotum however similarly minutely, densely punc- 

 tured in both sexes; lateral spine but little behind the middle, 

 stronger and more abruptly formed than in the coquus group but 

 less developed and less triangular than in the annulatum group; 

 elytra much wider than the prothorax in both sexes, only twice as 

 long as wide, parallel, broadly rounded at apex; legs long, the tarsi 

 more dilated than in any of the preceding; abdomen minutely, 

 extremely densely punctate; antennae varicolored in both sexes, 

 slender, black distally. Length (cf, 9) 24.0-27.0 mm.; width 7.4- 

 8.2 mm armatum Lee. 



The remarks of Mr. Charles Schaeffer (Bull. Bk. Inst., I, p. 339) 

 leave me in somewhat dubious frame of mind as to what annulatum 

 Lee., may really be. I had not consulted LeConte's original descrip- 

 tion before publishing the tabular statement of the genus (Ann. 

 N. Y. Acad., VII, 1893, p. 586) and trusted for the identification 

 of the species entirely to the comparison which I had made with 

 the specimens standing under that name in the LeConte cabinet, 

 which so far as can be recalled included the Lower California form 

 which I described as annulatum; this was also the interpretation of 

 annulatum apparently held by Lacordaire (Gen. Col., IX, i, p. 174). 

 It is the largest and most conspicuous species of the genus, but as 

 I now perceive, agrees with the original description of annulatum 

 simply in the very prominent lateral angles of the prothorax placed 

 far behind the middle and in the coloration of the male antennse. 



It seems probable, in this light, that the Fort Wingate female with 

 very prominent but almost perfectly median lateral thoracic angles, 

 which served to represent fulvipenne Say, in my sketch of the genus, 

 principally because of its entirely black antennse, is a different 

 species, more closely allied to annulatum than to fulvipenne, the 

 latter doubtless being the well known pale variety of coquus. Mr. 

 Schaeffer states, with ample series at hand, that the male antennae 

 of annulatum, of which I insert above the original description, are 

 varicolored throughout as described by LeConte, while those 

 of the female are much less so and may be wholly black, truly a 

 rather remarkable circumstance in view of the virtually similar 

 coloration of the male and female antennae of peninsulare, although 

 there is always somewhat more black in the female than the male 

 antennse. Peninsulare is announced as a variety of annulatum by 

 Mr. Schaeffer, but seems to differ greatly in the female antennae; 



