THE CANADIAN ENTOMOLOGIST. 21 



A. Schwarz and H. S. Barber to portions of New Mexico and Arizona in 

 the summer of lyoi, while coUecling at the base of a hill at Flagstaff, 

 Arizona, Mr. Barber obtained in his sweeping net a single specimen of 

 the cockroach-like genus Aenigmatias. This specimen agrees closely 

 with Dr. Meinert's original description and figures of his Aenigmatias 

 biattoides*, except that it has only six instead of seven body-segments, 

 not counting the genitalia. Thinking that perhaps an error had been 

 made by the engraver, and that the description had been made conform- 

 able to the engraved figure, I addressed a letter on the subject to Dr. 

 Meinert, who, under date of November 18, 1902, writes me that, in 

 company with his assistant, Mr. Boving, he again examined the unique 

 specimen and found that his published figures and descriptions are 

 correct, and that the specimen really has seven distinct body-segments. 

 In the genus Phora the male has normally six abdominal segments, while 

 in the females of the various species the number ranges from four to six, 

 according to the species. Dr. Meinert does not state the sex of his 

 specimen, but the figures apparently indicate a male, although Prof. Mik 

 has expressed the opinion that they probably represent the female, and 

 that the winged Platyphora Lubbocki, Verrall, may be the male of the 

 same species. The Arizona specimen also appears to be a male, and in 

 addition to the fewer number of segments in the abdomen, possesses 

 several minor differences, which indicate that it is specifically distinct 

 from the Danish species. 



Of its habits nothing is known beyond the fact that it occurred on 

 low vegetation in a locality where no ant-nests could be found, although 

 search was made for them. No stones nor rocks occurred in the 

 immediate vicinity, the nearest approach being the small pieces of lava 

 scattered about, but these were too small to conceal an ant-nest. 



The new form may be characterized as follows : 

 Aenigmatias Sc/iwarzii, new species. 



Dark yellow, the posterior part of the body-segments brown, most 

 extended on the apical part of the abdomen, where it covers the genitalia 

 and the greater portion of the last two segments ; upper side of body 

 opaque, distinctly whitish pruinose, and with a short, sparse, yellowish- 

 white pubescence, a row of short black bristles along the hind margin of 

 each abdominal segment and a few shorter ones scattered over the last 

 two segments ; first thoracic segment (which comprises the prothorax and 



'Entomolngiske Meddelelser 11., page 213, plate IV,, tigs, i to 6. 



