662 ON TWO NEW SPECIES OF TRICHOTHRIPS 



and decidedly narrower than in pedicularius. Tube com- 

 paratively longer than in pedicularius, three-quarters the 

 length of the head, about two and one-half times as long as 

 broad at base, tinged with a faint ring of grey at tip. 

 Terminal hairs slender, about as long as tube, and those on 

 ninth segment also slender and about three-quarters the 

 length of tube. Other abdominal bristles moderately strong, 

 curved ; the lateral pair on seventh segment the longest of all. 



Habitat. — Under bark of ash. There are four specimens 

 in my collection, one taken at Lockhaugh in April, 1904, and 

 carded; one in a wood near Winlaton, May, 1908, and two at 

 Gibside, April, 1909. 



Differs from pedicularius in its habitat ; in having the head 

 brown instead of yellow, the basal antennal joints unicolorous 

 with rest of antennae instead of clear yellow ; the considerably 

 longer sense-cones ; the longer head and much shorter 

 prothorax, which is not as long as the head, and is strongly 

 transverse ; the broader pterothorax and narrower abdomen, 

 and the slightly longer tube. 



Trichothrips longisetis sp. nov. 



Trichothrips ccBspilis, Bagnall (nee Uzel). 



$ Length about I'o mm. 



Related to T. ccespitis, Uzel. 



Colour yellowish ; head, ninth abdominal segment and tube 

 uniform dark greyish-brown, and the eighth shaded with 

 grey ; prothorax and pterothorax (excepting near base) and 

 all femora light greyish brown. Prothorax, pterothorax, and 

 abdomen irregularly splashed with reddish-brown hypodermal 

 pigment. Antennae a little more than twice as long as the 

 head, with first and second joints greyish-brown, second with 

 yellowish tinge ; third yellow at base and lightly tinged with 

 grey ; fourth to eighth light greyish-brown, the fourth being 

 slightly lighter than the following joints. Second joint 

 elongate-cyathiform ; third obconical, broader than the others ; 

 fourth to sixth roughly clavate ; seventh long, widened evenly 

 and roundly from base and then slightly narrowed, truncate 



