CETONIIN^ 285 



name is proposed. The original description of the type by LeConte 

 is as follows: 



Black, shining; prothorax sparsely and finely punctured, margined at the 

 sides with white pubescence; elytra vaguely and not at all densely 

 punctate, briefly but acutely prolonged at apex, each with two white 

 spots transversely placed a little behind the middle; metasternum 

 laterally and its episterna clothed with cretaceous pubescence; 

 mesosternal epimera with a cretaceous spot; pygidium rugosely 

 punctate, nigro-pubescent and with two large cretaceous spots. The 

 epistoma is strongly margined, truncate in front, parallel at the sides, 

 the head sparsely but coarsely punctured, with elevated sides and, 

 between the eyes, there is a medial elevation which extends forward 

 to the line of antennal insertion. The median lobe of the prothorax 

 is rounded and the scutellum is slightly exposed though very narrow. 

 The ventral segments have each a lateral white spot near the elytral 

 margin and the anterior tibiae are armed with a feeble tooth at 

 one-third from the apical angle. Length 22.5 mm. Arizona. 



cretacea Lee. 



This species may not be so rare as local, both in time of appearance 

 and in geographic habitat. Mr. Schaeffer informs me that he saw 

 it in considerable number at one place in southern Arizona, but 

 could only secure a few specimens because of its remarkable activity. 

 The species of Pseudomorpha are rare in collections for similar 

 reasons. 



Cotinis Burm. 



While the general contour of the body in Cotinis is somewhat as 

 in Gymnetis and the general habitus in certain forms, called Latemnis 

 by Thomson, even closer, the structure of the head and clypeus 

 and general scheme of ornamentation are altogether different. 

 The middle of the clypeal margin is here prolonged upward in an 

 extremely variable small corniform process in both sexes and there 

 is a prominent longitudinal cephalic ridge, generally with free 

 anterior end. Allorhina is similar in almost every way to Cotinis, 

 except that this clypeal process occurs in the male alone. The 

 hind coxal plate is acutely angulate and posteriorly prominent in 

 Cotinis, but in certain species this angle becomes obtuse, constituting 

 Balsameda Thomson, which is probably a distinct genus, though 

 united with Cotinis by Bates. The suture between the head and 

 clypeus frequently becomes distinct toward the sides, especially 

 in lebasi and some others, but it is never obvious in Gymnetis; the 

 surface of the head and clypeus at each side of the medial prominence 



