no HYMENOPTERA ACULEATA. 



the median before the bifurcation of the 

 latter. 



(4) 3. Tubercles of protliorax black, ventral basal 

 angle of second abJomiuil segment nearly 

 a right angle, its apex scarcely rounded . spikosus. 



(3) 4. Tubercles yellow, ventral basal angle of 

 second abdominal segment more obtuse, 

 the apex somewhat rounded . . . interruptcs. 



(2) 5. Posterior and median nervares of hind 

 wings united by a short perpendicular 

 nervure teimaculatus. 



(1) 6. Second segment of abdomen, viewed side- 

 ways, not much deeper than the first, its 

 base rounded, abdomen brown at the base dimidiatus. 



N. spinoSUS, 'Fah. — Black, a band oa the pronotum, 

 often absent in the $ , a band at the apex of the first three 

 abdominal segments, often 'more or less interrupted es- 

 pecially in the ? , yellow ; tubercles black, wings slightly 

 clouded ; legs in the $ with the extreme apex of the 

 femora^ base and apex of the tibice, and the tarsi red ; legs 

 in the ? red with the femora more or less black at the 

 base ; head and mesonotum dull, very rugosely and closely 

 punctured, clothed with brownish hairs, which are longer 

 and denser in the $, postscutellum clathrate or longi- 

 tudinally rugose, propodeum hairy at the sides, largely 

 and sulcately rugose, basal area ill-defined, on each side of 

 the propodeum is a strong angular spine ; abdomen some- 

 what shining, basal segment very largely punctured, closely 

 in the $ , remotely in the ? , the remaining segments finely, 

 remotely and superficially so, apical segment in the ^ 

 bidentate, in the ? closely punctured, second ventral 

 segment very largely punctured and sharply angulated at 

 the base, basal segment above, and all the segments be- 

 neath clothed with fine grey pubescence ; tibiie hairy. 



L. 10-12 mm. 



Widely distributed, and common in many localities. 



N. interruptus, Fab. — Very like spinosus but more 

 compact in form and shorter, antennae shorter, those 

 of the c? with the penultimate joint incrassated, and the 

 apical pint as long as the two preceding together, tegul^ 



