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VII. Description of a new British Species of Ichneumon. 

 By Thomas Desvignes, Esq. 



[Read November 7tli, 1853.] 



Ichneumon paludator. 



$ Abdomine nigro ; $ apice albo ; femoribus tibiisque rufis. $ 

 & $. 

 $ Orbitis oculorum infra antennas distinctius aut obsoletius, et 



apice scutelli albis. 

 $ Lineola infra scutellum, annulo antennarum albis. Scutellum 

 album. 



Longitude 7 — 7h lin. 



Caput maris orbitis oculorum infra antennas albis aut albidis. 

 Palpis ^ et ? nigris, apice ferrugineis. Clypeum iiirtis 

 ferrugineis. Antennae $ corporis dimidii longitudinis, por- 

 rectEe, nigrae, subtus fusco-ferrugineae, ? involutae ; 1 — 6 

 apice articulorum dilute ferrugineis, 7 — 12 albis (basi 7o), et 

 sequentibus nigris. Met;itliorax areola supero media, equi 

 solen formce. Scutellum foeminae totum, in mare apice solo 

 interdum tenuissime, album. Alae fumato-liyalinae, radio et 

 squamula ferrugineis ; stigmata flavo-ferruginea ; areola sub- 

 quinque angulari. Pedes, praesertim foeminae, crassiusculi, 

 rufi ; coxis et trochanteribus, necnon tarsis et tibiis posticis 

 maris, nigris, his summo basi rufo-ferrugineis ; tarsis mediis 

 fuscis, basi fulvis ; foeminae tibiis posticis apice summo et ar- 

 ticulo 5o tarsorum mediorum superne fuscis, liujus basi rufa. 

 Abdomen maris elongatum, thorace paullo angustius, ni- 

 grum ; segmento lo apice in medio aciculato, 2o fovete pro- 

 fundiu spatio interjacente fere usque ad medium segment! 

 aciculato ; foeminae latior quam mare, segmento 6 marline 7 

 fere toto albis, lateralibus satis nigris, apice acuto ; aculeus 

 brevis, exsertus. 



This species, which is closely allied to Ickn. saturatorius of Gra- 

 venhorst, inhabits the larva or pupa of Nonagria Typlice, and 

 for many specimens I am indebted to Mr. Samuel Stevens, who 

 bred them from Nonagria paludicola, and also to 'Mr. Edwin 

 Shepherd. These larvae were taken in Hammersmith marshes. 



