IDOLOCOllIDiE. 371 



Head reddish-brown. AntenncB ; 1st joiut yellowish or pale 

 brownish-yellow ; 2nd blackish ; 3rd brownish, base yellowish ; 4th 

 reddish. 



Thorax. — Pronotiim pitchy brown. Scutellum pitchy brown. 

 Elytra brownish-oehreous ; Claims ; inner margin brown-black, base 

 and apex brown ; almost in the middle a narrow, transverse, silver- 

 white band, narrowly margined with dark brown ; Co7^ium ; anterior 

 margin between the bands brown ; before the middle, a broad, trans- 

 verse, silver-white band, widest next the claval suture, extending 

 about equally on both sides the claval band ; margin, especially the 

 posterior one, brown ; at the apex a triangular silver-white patch, 

 its apex not reaching to the posterior inner angle, the interior mar- 

 gin brown ; Cuneus dark brown ; Membrane brownish-black ; between 

 the apex of the cuneus and the inner cell-nerve a triangular whitish 

 patch ; cell-nerves black, apex whitish. Legs brownish-red ; 1st 

 pair palest ; tiUce with fine, somewhat spinose, yellow hairs ; tarsi 

 and claws brown. 



Abdomen very much contracted at the base ; underneath brown- 

 black or black, clothed with fine, short, yellowish hairs. 



Length, 2 lines. 



Neither Pallen nor Dr. Tieber in their works, make any mention 

 of the $ having undeveloped elytra ; indeed Fallen describes both 

 sexes as developed. Dr. Flor, however, points out that Kirschbaum 

 was the first to observe the undeveloped form of the $ , and he 

 himself confirms the latter' s statement. Flor says, " The elytra are 

 only twice the length of the scutellum, so that they but cover the 

 contracted portion of the abdomen ; they are yellowish-brown, with 

 a short silver baud before the rounded apex ; withou.t clavus, cuneus, 

 and membrane ;" and he further observes that, " from its form and 

 swiftness it bears great resemblance to an ant." He accounts for 

 its difficulty of detection from its habit of running on the ground. 



The only examples we have seen were in the collection of the late 

 Mr. Curtis, but we cannot give the locality. Allen Hill, Lang- 

 port, July {Bale). Dr. Mor says "not scarce on dry flat places, 

 upon mountain sorrel overgrown with heather, in June and July." 



