145 



the antenna? are more slender (tln-ee-fifths the length of the whole 

 body); the elytra are more narrowed, and are separately rounded 

 at the apex, and the ventral segments are different, the basal 

 three being compressed into a keel down the middle, and the 

 fourth triangularly depressed in the middle. 



The head in the insect which I take to be cyanipennis, Pasc, 

 is nearly twice as long as its width across the base ; the labrum 

 is quite as long as wide, is depressed down the middle, and bears 

 a few strong setiferous punctures. I do not hnd any distinct 

 separation between the hinder part of the head and anything 

 that can bo called a clypeus. The middle of a straight line 

 drawn from the front of the labrum to the hind margin of the 

 head would fall decidedly in front of the base of the antennse. 

 The antenna? are broken in the female example before me ; joint 

 1 is unusually long (equal to the basal joint of the front tarsi, 

 and much more than half as long as the distance from eye to 

 eye) ; 2, half as long as 1 ; 3 and 4 successively increasing 

 in length ; but even 4 distinctly shorter than 1. The pro- 

 thorax is scarcely longer than the head, is a little (to the eye it 

 looks a good deal) longer than its greatest width, and is at its 

 front margin rather more than a third the width of its base. The 

 elytra are scarcely punctulate, but appear shagreened with line 

 vermiculate rugulosity somewhat as in Z. rnstica. 



Z. rustica, sp. nov. Rufa ; antennis, palpis, mandibulis, femori- 

 bus apice, tibiis, tarsis, capite toto, metasterno (episternis 

 exceptis), et abdominis segmentis primis 3, nigris ; elytris 

 cceruleis, crebre subtilius punctulatis, capite antice producto 

 gradatim angustato ; prothorace fortius crebrius punctulato, 

 antice sat fortiter angustato. Long., 4^ 1. ; lat., 1|^ 1. 



The antenna; scarcely exceed the length of half the body ; joint 

 1 is short (less than half as long as the distance from eye to 

 eye), 2 scarcely half as long as 1, 3 slightly shorter than 

 1, 4 slightly shorter than 3. The head is very slightly 

 longer than its width across the eyes, with its hind margin con- 

 vex hindward ; it is gradually narrowed forward so as to be 

 rather pointed in front, its width across the base of the mandibles 

 is little less than half its width across the eyes ; its whole sur- 

 face, including the labrum, is evenly, strongly, and rather closely 

 punctulate, except that the puncturation becomes liner and 

 feebler near the hind margin ; the labrum is rather strongly 

 transverse, is clothed with long hairs, and bears a deejD central 

 fovea, much abbreviated in front. The prothorax is of the same 

 length as the head, slightly longer than its greatest width, its 

 front margin about half as wide as its base, its sides somewhat 

 evenly rounded (scarcely perceptibly sinuate both in front of, 



