1 64 Mr. Cameron on 



EmpJiyUis improbns Cresson is the nearest relative 

 known of this species ; hnprobus may be known from it by 

 having the third, fourth, and fifth joints of the antennae of 

 nearly equal length ; by the abdomen being " about as long as 

 the head and thorax"; in the metatarsus being as long as 

 all the other joints united, &c. E. mexicamis (Cam.) has only 

 the knees and fore-tibiae white. 



CYNIPID^. 



Onychia striolata, sp.nov. 



Nigra; capite et tJioimce sUdolatis^ breviter pilosis ; tibiis 

 tarsisque ante7'ioribiis,piceis ; flagello anteitnariun subtusfiisco; 

 alis nyalinisy nervis pallida testaceis. $ . Long, fere 4 mm. 

 Jlab. Barrackpore, Bengal (G. A. J. Rothney). 

 Antennae longer than the body, of nearly uniform 

 thickness ; the third and fourth joints subequal. Head and 

 thorax opaque, covered with a short whitish pubescence. 

 Head rugosely punctured, striolated on the vertex and behind 

 the eyes ; front slightly depressed, finely rugose ; a straight 

 keel runs down from the direction of each ocellus ; . 

 mandibles piceous. Sides of pronotum coarsely striolated ; 

 the top a little depressed, finely rugose, this central part 

 being distinctly separated from the striolated sides. Meso- 

 notum coarsely rugose ; parapsidal furrows wide, distinct ; 

 the space between the keels at the base crenulated ; 

 mesopleurae shining, impunctated ; excavated in the centre. 

 Scutellum channelled ; keeled down the centre ; the foveae 

 at the base shining, impunctate ; the sides whitish ; the 

 apical part with stout transverse keels ; the apex almost 

 transverse. Central part of metanotum shining, impunctate; 

 separated by stout keels from the reticulated, densely pilose 

 sides. Abdomen shining ; the apical half of the petiole 

 striolated above. The anterior legs shortly and sparsely 

 covered with white hair ; the posterior densely ; the posterior 



