2g2 BRITISH ICHNEUMONS. [Aritranis. 



I. elegans, Desv} 



Cty/'/iis elei^aiis, Desv. Cat. 57, (J 9 ; cf- Bridg. Entom. 1880, p. 52 ^/ Trans. Ent. 

 Soc. 1881, p. 153. Hyg^iocrypitis Dreivseni, Thorns. O. E. v. 514, <5 9 ; cf. lib. cit. 

 xxi. 2376. 



Head immaculate ; clypeu.s truncate and labruin free. Antennae of $ 

 dull testaceous beneath ; of ? with scape black, five basal flagellar joints 

 red, and the three following white. Thorax and scutellum immaculate ; 

 metanotum dull, apophyses acute ; $ with lateral costae elevated. Abdo- 

 men elongate, pyriform ; the three very dull and closely punctate basal, 

 and base of the fourth, segments red, with the apex of the third infuscate ; 

 sixth and seventh with white fasciae ; post-petiole a little broader than the 

 petiole, which is basally toothed on either side and its lateral margins 

 elevated ; the second twice broader at apex than at base ; terebra one- 

 fourth the length of the abdomen, $ with valvulae prominent. Legs 

 red, with the anterior onychii ferrugineous ; $ with all, ? with front, 

 coxae and trochanters, apices of hind femora, tibiae and tarsi black ; 

 central joints of hind tarsi white. Wings somewhat clouded ; radix 

 testaceous, stigma nigrescent. Length, 12 mm. 



[I have followed Bridgman in considering Desvignes' species as synony- 

 mous with that of Thomson, in spite of what the latter says to the contrary, 

 since the points of distinction are not aj)parent in the two descriptions, 

 except that Thomson gives one to understand that the $ of his species 

 alone has the tarsi white. Desvignes says C. elegans is closely allied to 

 C. amoe?ii/s, Grav., but is much larger, and differs in the hind tarsi and 

 terebra. 



The single $ type of C. elegans in the British Museum may be further 

 characterized as having : — Tlie head and palpi entirely black, the face 

 with griseous pubescence. Antennae setaceous and black, becoming only 

 slightly ferrugineous basally beneath. Thorax and scutellum black ; meta- 

 thorax scabrous with very distinct areae, the basal area narrow, areola 

 sub-quadrate, petiolar area only one-third high and, unlike the lateral 

 areae, not discreted ; spiracles large and shortly oval. Legs red, with 

 apices of hind tibiae and extreme apices of their femora, black ; hind tarsi 

 black with joints three and four (except apex of latter) white. Wings 

 somewhat narrow with the areolet sub-quadrate — as in A. carnifex — and 

 the costa brunneous ; hind wing with nervellus post-furcal and intercepted 

 very slightly above its centre. I did not examine the clypeus.] 



From A. carnifex, Drewseni may be known by the dull and black 

 metathorax, closely punctate basal segments and elevated petiole; the $ 

 terebra is shorter, the stigma nigrescent, with the areola and whole meta- 

 thorax longer ; and the ^ by the colour of its legs and its elevated lateral 

 costae. 



This species was described from specimens in Curtis' and Desvignes' 



1 Cryptus ni/iceps, Desv. Cat. 55, ? . 



Desvignes' inadequate description of this species is as follows : — Head black ; frontal orbits, 

 mouth except apices of mandibles, and the face except lateral marks, fulvous. Antennae tiliform, 

 rather longer than half the body ; centrally white-banded, testaceous beneath. Thorax immaculate ; 

 metathorax nearly smooth. Abdomen red with two apical segments infuscate and anus white ; post- 

 petiole canaliculate ; terebra two-thirds the length of the abdomen. Legs red with all the trochanters 

 and posterior coxae basally infuscate; anterior femora infuscate above; tarsi dull red. Wings sub- 

 fasciated centrally below the stigma; tegulae piceous. Length, 4A lines. 



Only a pin-hole adorns the proper position of this "species"" in the British Museum, and the 

 type appears to be lost. The coloration appears similar to that of C. elegans, Desv. 



