404 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. lo. 



PANDELETEIUS CINEREUS Horn. 



Dallas, Texas, March 6, 1908, on Prunus, Jones and Hood; March 

 6, 1909, breeding in twigs of Phoradendron Jlavescens on Hicoria alba, 

 Pierce and Tucker; April 13, 1910, on Quercus, Pierce and Pinkus; 

 April, 25, 1907, F. C. Pratt; May 12, 1907, E. A. Schwarz; Handley, 

 Texas, on Physostegia, April 27, 1905, W. D. Pierce; Devils River, 

 Texas, May 2-5, Schwarz, Pratt, and Bishopp. The writer can not 

 find any structural differences between the specimens from these 

 two widely separated localities. 



PANDELETEIUS ROBUSTUS Schaeffer. 



This is by far the most robust sjiecies seen by the writer, and also 

 the darkest in color. The nine specimens at hand vary from 3.5 mm. 

 to 5 mm. in length and also vary greatly in robustness. They are 

 from the Chisos Mountains, Brewster County, Texas, June 10-12, 

 1908, Mitchell and Cushman. 



Mr. Champion refers in the Biologia to specunens identified by 

 the writer as rohustus and having a six-jointed funicle. The speci- 

 mens actually identified by the writer have never left the United 

 States National Museum and are, as stated above, dejpressus. There 

 are several unidentified species in the collection related to dejpressus, 

 which the writer has not had time to stud}'. It is quite possible that 

 some of this unstudied material, being from the same localities as 

 detei-mined material, w^ere selected and sent to Mr. Champion, pur- 

 porting to be determined b}^ the writer. In the Washington series 

 there are still some specimens with six-jointed funicle awaiting study, 

 and from the identical localities from Avhicn the species wdth seven- 

 jointed funicle were taken. 



3?S^VIL.LIDIIJSr^5i:, iie-wr sublainily. 

 Bradujderinx Pascoe, 1870. 



Table of tribes of Pmllidiinaz. 



I. Elytra wider than prothorax at base; humeri angulate, often prominent. 



1. Claws free. 



a'. Corbels of posterior tibiee open or very feebly cavernous. 



bK Rostrum smooth, often medially carinate Alceidini, new tribe. 



62. Rostrum very rough or tricarinate above Prypnini, new tribe. 



a^. Corbels of posteiior tibiae cavernous Cyphini Horn (1876). 



2. Claws connate Polydrusini, new tribe. 



II. Elytra not wider than prothorax, emarginate or truncate at base; humeri absent 



or rounded, wings absent or rudimentary. 



3. The three intermediate segments of the abdomen equal, separated from each 



other and from the first by straight sutures Blosyrini, new tribe. 



4. Abdominal segments unequal, separated from the first by an arcuate or angulate 



suture. 

 a}. Head and prothorax normal. 



¥. Third jcjint of all the tarsi wider than the second and deeply bilobed. 

 c'. Tibite normal, not dilated at tip. 



