OF WASHINGTON. 187 



River, although I saw a few on the desert mesa, between the river 

 and the railroad station at Tacna. 



Mr. Howard said that the orange color shown in this way was 

 plainly a warning color, indicating the nauseous character of the 

 insect, to which Mr. Schwarz replied that he had seen seventeen 

 Meloid beetles taken from a single bird stomach, which was sub 

 mitted to him some time since by Dr. Merriam. Mr. Ashmead 

 considered that the red markings might, in reality, be protective 

 in connection with the character of the surroundings. 



- Mr. Schwarz exhibited and remarked upon two species of 

 Coleoptera recently discovered by Mr. H. G. Hubbard in the 

 southwestern portion of the United States, and which represent 

 two genera new to our fauna. The first is Cylidrella moll is 

 Sharp, an extremely slender form of the family Trogositidae (allied 

 to Nemosoma) which was bred at Washington, D. C.,from apiece 

 of solid wood of Parkinsonia torreyana and which was infested 

 by an undescribed Scolytid (Hylocorus parkinsonice Schwarz, 

 MS.). There can be no doubt that the Cylidrella is parasitic on 

 this Scolytid. Several specimens were bred from the Parkinsonia 

 wood which was cut out by Mr. Hubbard from a tree in the Indian 

 reservation at Yuma, Arizona, and although not one of the speci 

 mens agrees in coloration with the unique type described by Dr. 

 Sharp from Guatemala, there is very little doubt about the specific 

 identity. The second species is a Latheticus (family Tenebrion- 

 idae, tribe Ulomini), undoubtedly distinct from the only known spe 

 cies of this genus, L. or y zee Waterhouse, which has been found in 

 rice brought to England from India. This new species was found 

 by Mr. Hubbard under burned bark of the Mesquite (Prosopis 

 juliflora} at Indio in the Colorado desert of southeastern Califor 

 nia. The occurrence of a second species of this genus at a locality 

 so remote from the original habitat of the type species is certainly 

 remarkable. 



In discussion, Mr. Ashmead asked as to our previous knowledge 

 of the habits of Cylidrella. Mr. Schwarz replied that the Biolo- 

 gia Centrali Americana, in which the genus was described, is not 

 exceeded by any other work in the paucity of statements regarding 

 habits of the insects. He considered the name " Biologia " a 



