Catalogue of British Ichneumonida. 167 



resemble a capital T ; a slight impression above each 

 antenna ; forehead smooth, with only the hair pits. 

 Antennae longer than the insect ; 1st joint of flagellum 

 a little longer than the 2nd and 3rd combined, which are 

 subequal in length, and about three times as long as 

 wide ; head and thorax covered with dirty white pube- 

 scence, longer on the metathorax. Thorax longer than 

 high ; mesothorax trilobed, covered with fine, regularly 

 scattered, punctures ; apex of scutellum pointed ; meta- 

 thorax with distinct areae ; supero-medial area elongate, 

 coffin-shaped ; postero-medial complete, about as wide 

 as long, curved upwards above and below. Claws of 

 tarsi furnished with long close pectinations to the extreme 

 apex. Abdomen longer than the head and thorax, and 

 a little narrower; 1st segment as long or a little longer 

 than the hind coxae and trochanters ; spiracles situated 

 just beyond the middle, between these and the apex, the 

 sides slightly curved inwards ; sides without keels ; the 

 apex one-third wider than across the spiracles, and 

 rather more than twice the width of the petiole ; just 

 before the apex a transverse line of faint aciculations ; 

 2nd segment one-fourth longer than wide, the 3rd rather 

 longer than wide, remainder transverse. Wings, trans- 

 verse ordinary nervure interstitial ; recurrent nervure 

 received one-third from base of areolet ; transverse anal 

 not divided. 



Mouth, face, cheeks, all the orbits, and base of an- 

 tennae, pitchy red ; margin of collar, extreme apex of 

 2nd abdominal segment, back of 3rd, and a spot at the 

 base of 4th, pale pitchy. Legs rufo-testaceous ; hind 

 coxae black ; extreme base and apex of hind tibiae scarcely 

 clouded ; 5th tarsal joint and claws dark ; stigma fus- 

 cous, base pale ; base of wings straw-coloured. Male. 

 Length, 6 mm. 



This species, which appears to me to be undescribed, 

 belongs to the same division of Holmgren's as M. 

 thoracicus, distinguished by the tarsal claws being pecti- 

 nated to the apex. 



One male taken in the neighbourhood of Norwich at 

 the beginning of May. 



