(4). 

 (3)- 



(2). 



SUB-FAMII.Y 



CRYPTINAE. 



A Table of Tribes. 



Metathorax with distinct longitudinal costae. 



Areola separated from petiolar area by a costa Phvgadeuonides. 



Areola and petiolar area confluent Stilpnides. 



Metathorax with no longitudinal costae Cryptides. 



Phygaileuonidts. Stilpnides. Cryptides. 



Tribe 



PHYGADEUONIDES. 



The characters of the Cryptinae are far less satisfactory than are those 

 of the Ichneumoninae ; and, simple as it appears from the above table, the 

 differentiation of the tribes is by no means easily placed in words, though 

 their various points of dissimilarity are sufficiently apparent to the practised 

 eye. I have already drawn attention to one great source of difficulty in 

 the present sub-family, viz., the inclusion of both winged and apterous 

 forms. It is necessary at the outset to say that many of the Fezo/nachi, 

 and a few of the smaller Phygadeuones, in this condition have no trace 

 of longitudinal nietathoracic costae. That they do not belong to the 

 Cryptides is, however, abundantly demonstrated by their comparatively 

 incrassate antennae and shorter legs. All previous authors have agreed 

 to separate the Phygadenonini from the Ilemitelini by characters of eejual 

 importance with those by which they are divided from the Cryptides, but 

 I quite fail to agree in this separation, — -indeed, if the mass of species 

 found in our latitudes were of less unwieldy proportions, it would be 

 more natural to make no distinction of the kind — for the characters 

 usually indicated as distinctive consist simi)ly of the areolet in the 

 Heniitelini being more or less obsolete externally (a modification not 

 always occurring therein, and occasionally found in the P/iygadeuonini), of 

 the former having the head less cubical (and all descriptions of shapes are 

 exhibited in /Jemite/es), and, which is a poor character, though the best at 

 present discovered, the antennae and legs of Hemitelini are always much 

 more slender. 



From the Cryptides the present tribe may be distinguished by having the 

 metanotum nearly always fully and com|)lelely costate, both longitudinally 

 and transversely, by the petiolar area, which is always well-defined, being 



