316 1CHXEUMOMD.E. 



narrow, subconvex, slightly curved, with an obsolete discul sulcus ; 

 terebra not exserted. Leys slender, red, with the hind femora 

 occasionally infuscate. Wings with the areolet triangular, entire 

 and sessile, with the outer nervure weak, emitting the recurrent 

 nervure beyond its centre ; stigma and tegulae flavescent-red : 

 nervellus strongly postfurcal and intercepted a little above centre. 



Length 10 millim. 



Type in the Breslau Museum.] 



Var. orientalis, nov. 



Differs from the foregoing description in having the head much 

 iiiirrower and more constricted posteriorly, distinctly narrower 

 than the eyes ; in the somewhat stouter antennae, more finely 

 punctate mesonotum, lack of metanotal areae, and in the petio- 

 iated areolet. 



"!NDIA" (Capt. Boys). 



Type in the Oxford Museum. 



The three specimens upon which the new variety is founded 

 are so closely related to the Palaearctic type that I prefer to regard 

 them as a local race, rather than a new species. 



The typical form is abundant throughout nearly the whole of 

 Europe, occurring in damp situations in the spring, and has been 

 bred by Brischke in Prussia from two species of Nematug; in 

 Britain it is of wide distribution and very common. 



226. Perilissus tricolor, sp. n. 



cJ. A dull black species, with somewhat profuse red, and 

 obsolete flavous, coloration. Head as broad as thorax, buccate 

 behind the internally entire eyes, and black, with a large flavous 

 spot at the base of the pilose face, another small one at the base 

 of the hardly discrete clvpeus, and the diseally aciculate mandibles 

 centrally rufescent ; vertex very strongly emarginate, frons 

 densely and evenly punctate ; cheeks not short, nor eyes large. 

 Antennae slender, filiform and black, with apex of scape rufescent 

 and apices of the flagellar joints subnodulose or setiferous. Thorax 

 a little convex, black, with the prothorax and preradical lines 

 obsoletely flavescent ; metathorax dull and closely coriaceous, red, 

 with only the base of the metanotum to the very strong costula? 

 black ; notauli wanting ; basal area quadrate and indistinct, 

 petiolar area basally complete, very short, entire and strongly 

 transverse; remaining arese wanting; spiracles obliquely linear. 

 Scutellum not margined, small, feebly convex, distinctly punctate 

 and flavous ; postscutellurn concolorous. Abdomen fusiform, with 

 basal segment narrow, parallel-sided, and the second strongly 

 dilated throughout ; black, with the third and fourth segments 

 entirely, the second and fifth apically, red, the first obsoletely 

 flavous at apex and a large anal spot flavous ; ventral valvula* 

 large. Legs slender, elongate and red, with the anterior coxae and 

 trochanters flavous and black ; tarsi, posterior tibiae and trot-banters, 



