32 Prof. Westwood's further descriptions of 



Typus Sycobia bethyloides, Walker (loc. supra cit.). 

 (PL IV., figs. 1—8). 



Lutea, mandibulis fulvis, abdomine fulvo apice pallide 

 testaceo, alis diaphanis venis pallide testaceis. Long, 

 corp. 1J — 2|- lin. 



Hob. Hindostan. In Ficus Indiea. Calcutta ; Sir 

 Walter Elliott and J. Wood-Mason. In Mus. Britann. 

 et S. S. Saunders. 



My description of this insect is made from the type- 

 specimens described by Walker, still in the British 

 Museum; and by the permission of Dr. Giinther, the 

 chief of the Zoological Department, I have been enabled 

 to make a careful microscopical examination thereof, 

 assisted by several other specimens, received by Sir 

 Sidney S. Saunders from Mr. Wood-Mason, found by 

 him infesting Ficus Indiea at Calcutta. This has 

 enabled me to ascertain that the specimens described by 

 Walker as females, provided with an exserted ovipositor, 

 are in fact males, with the genitalia exserted to a con- 

 siderable length, this peculiarity having been observed 

 in all the specimens which I have examined. 



On comparing my description with that given by 

 Walker of his misnamed female of Sycobia bethyloides, 

 it will be seen that that author overlooked the ocelli, and 

 has described the exserted male genitalia as " oviductus 

 tubiformis, abdominis dimidio aequilongus." 



Walkerella, n. g. 



(Sycobia, "neuter? worker?," Walker, 'Notes on 

 Chalcidise,' p. 61). 



Characteres masculini tantum descripti. Corpus 

 parvum breve apterum. Caput magnum depressum 

 transverse ellipticum, angulis rotundatis ; pronoto latius ; 

 oculis parvis lateralibus, margine antico capitis in medio 

 parum depresso. Ocelli 0. Antennae in medio capitis 

 insertae, basi approximate, articulo lmo maximo dila- 

 tato, basi angustato, 2ndo parvo angusto, 3tio subclavato 

 annuliformi, 5 proximis minutis equalibus, ultimo (nono) 

 prsecedenti paullo majori ovali, et ut videtur exarticulato. 

 Mandibulae elongate, porrectae falcate, basi dilatato et 

 denticulato, apice bifide. Tropin reliqui obsoleti. Pro- 

 notum magnum capite angustius transverso-quadratum ; 

 mesonotum exarticulatum ? ; transversum ; metanotum 



