CONTRIBUTIONS TO OUR KNOWLEDGE OF THE BRITISH BRACONID^. 149 



■of antennae subequal in length ; pronotal longitudinal incisures some- 

 Avhat narrow ; femora not spinecl beneath. 



Long, 21 mm. 



Habitat. — Haut Mekong ; Vien Poukha. 



Allied to V. melanopterus, Stal. 



Vilius coiiifacies, sjd. n. 



Head, pronotum, scutellum, connexivum, rostrum, body beneath 

 and legs, reddish-ochraceous ; antennae (excluding basal joint), eyes, 

 hemelytra, metasternum, abdominal segmental spots, viz. two 

 at base, and one each on fourth, fifth and sixth segments, black ; 

 apices of femora, tibiae and tarsi, piceous or black ; basal joint of 

 antennae and an elongate, angulated, lateral, marginal spot to corium 

 pale ochraceous ; antennae with the second joint longest ; anterior 

 femora finely, sparingly spined beneath ; pronotal incisures punctate. 



Long, 14 mm. 



Habitat. — Laos, Vientiane. 



Allied to V. nigriventns, Dist., but differing by the colonr of 

 the basal joint of the antennae, the unspotted connexivum, the 

 dark apices to the femora, etc. 



CONTRIBUTIONS TO OUR KNOWLEDGE OF THE 



BRITISH BRACONIDiE. 



No. 4. — Rhogadid^. 



By G. T. Lyle, F.E.S. 



(Continued from p. 136.) 



Grandis, Giraud. 



I am very pleased to add this fine species to our British list : 

 it has hitherto been recorded from Austria, Hungary and Italy 

 only. At once recognised by the hind tibiae, which are black, with 

 the basal si.xth whitish. I have two males reared from New 

 Forest larvae of Amphipyra pyramidea, March 14th, 1912, and 

 April 4th, 1913 ; both had remained within their cocoons for the 

 previous nine months or so. 



In " Species des Hymenopteres, etc.,"* the length of the 

 insect is given as 7-10 mm. and the expanse as 12-16 mm. : my 

 specimens measure? mm. in length and expand 14 mm. I may 

 mention, however, that other cocoons, no doubt of this species, 

 from which I have failed to rear the parasites are considerably 

 larger than those from which my specimens emerged. 



In constructing its cocoon the parasite larva does not utilise 

 the whole of the skin of the host but only the five central 



* Vol. i of ' Braconidae,' p. 276. 



