138 MANDIBULATA. HYMENOI'TERA. 



with the tip of the middle femora rustyj the tibiae white in the middle 

 without; wings hyaline^ iridescent; stigma yellowish or fuscous, costa 

 fuscous, scales yellowish or black; cellule 5-angular. 

 Found, but rarely, near London, in June. 



Sp. 31. pumilus. Niger, antennis ferrugineis, apice et articulo \-mo nigris, 

 femoribus tibiisque anticis subtus stramineis, segmentis intermediis plerumque 

 margine summo castaneis. (Long. corp. 2 — 2| lin.; Exp. Alar. 4| — 5 lin.) 



Ic. pumilus. Gravenhorst, i. 152. — Steph. Nomen. 2d edit. col. 132. 



Black : mouth ferruginous, palpi paler ; antennae filiform, involuted, dull 

 ferruginous, paler beneath, and brownish towards the tip, the basal joint 

 black; abdomen oblong, black, sometimes with the extreme margins of the 

 segments chestnut ; legs moderate, brown-black, anterior sometimes red, or 

 dull yellow, coxae black, the convex portion of the femora for the most part 

 dusky or black ; middle generally with the tarsi, the inner edge of the tibiae, 

 and the tip of the femora ochreous ; posterior with the tarsi, and the tip of 

 the femora, in general, rusty or red ; tibiae black, with the base more or 

 less bay ; wings with the stigma black or pitchy, the costa and scales 

 brown, the latter sometimes yellow. 

 Common throughout the metropolitan district, in June and July, 



at Daren th, Hertford, &e. and in Salop. 



§ II. Scutellum and abdomen black, the apex of the latter with white dots or 



marks. 



Sp. 32. cessator. A^iger, femoribus tibiisque ryfis, posticis apice nigris. (Long, 

 corp. 6§ lin.; Exp. Alar. 13 lin.) 



Ic. cessator. Midler. — Ic. custodiator. Steph. Catal.3i7. No. 4360. 



Black : metathorax punctured irregularly, with two minute rather acute 

 tubercles ; abdomen silky, acute at the apex, the 3 basal segments punc- 

 tured, the following shining, the 6th and 7th each with a white dorsal 

 spot ; legs bright red, or pale saffron, the coxse and trochanters black ; the 

 apex of the hinder trochanters red, and of their tibiae, as well as the posterior 

 tarsi, black ; wings rather smoky-hyaline, with the stigma ferruginous or 

 brown, the costa and scales black or brown. 

 Very rare : I have the insect from the vicinity of the metropolis, 



captured in June : it occurs also in Norfolk. 



Sp. 33. leucopygus. Niger, femoribus tibiisque rufis, posticis apice nigris, 

 annulo antennarum albo. (Long. corp. 31 — 4 lin.; Exp. Alar. 7 — 7h lin.) 



Ic. leucopygus. Gravenhorst, i. 156. — Steph. Nomen. 2d edit. col. 132. 



Black : antennae with the 9th to 15th joints white, with a brown dot beneath; 

 abdomen with the 1st and 2nd segments edged with reddish, the 6th and 

 7th with the back entirely white ; legs red, coxae and trochanters black ; 

 anterior femora with the convex edge, and the posterior with the apex 

 dusky; the hinder tibise black at the tip, and their tarsi fuscous; wings 



