64 [March, 



trochanters, and base of tibiiB whitish ; apex of mandibles brownish ; wings yellow- 

 hyaline ; costa and stigma testaceous; the otlier vensB, except at the base, fuscous 

 or blackish. 



He points out, further, that the species superficially resembles Pteronux niiliaris, 

 but has a duller surface, the stigma much longer and more pointed, the third cubital 

 cell much longer in proportion to the fourth, the clypeus much broader and less 

 acutely emarginate, &c. 



I have seen no other specimens than Mr. Chitty's, but it should certainly be 

 looked for by collectors among their Pteroni of the niiliaris group. 



3. LTGiEONEMATUS PJKDTDUS, KonOW. 



This species was described for the first time so recently as Sep- 

 tember, 1904 (Zeitschr. £. Hym. u. Dipt.), when it was said to be 

 known only from Germany (Ei-fiirt and Ulm). I had, however, already 

 taken it myself in England, durino; a visit to Mr Chitty at Hunting- 

 field, Kent, last Easter ; but as I w^ent abroad soon after the specimen 

 was put aside for future examination, and 1 therefore unfortunately 

 did not send it to Herr Konow till his description was already 

 published. 



Unlike the two insects described above, this is but a small and 

 very ordinary-looking saw-fly, and I had no idea at the time of capture 

 that I had lighted on a good thing. 



The c? is still unknown. I translate here the author's description 

 of the ? . 



9 . Black ; with palpi, labrum, sometimes apex of the clypeus, lateral lobes of 

 pronotum, tegulse, anus widely and feet, yellow ; venter more or less lurid ; meso- 

 pleura sometimes lurid marked ; antennae and apex of saw sheath black ; hind tarsi 

 and extreme apex of tibiae dusky ; wings hyaline, veins dusky, costa and stigma 

 luteous. 



Ovate ; head and mesonotum pretty densely punctured, almost opaque, shortly 

 white-pubescent ; head narrowed behind eyes ; apex of clypeus widely truncate ; 

 antennae little longer than abdomen ; fovea above antennae and frontal area hardly 

 marked ; vertex thrice as broad as long ; third cubital cell in wings dilated towards 

 its apex ; saw sheath more than twice as thick as the cerci ; somewhat narrowed 

 towards the apex, its apex rounded. 



Woking: December 9th, 1901. 



VROSTYLIS INSTRUCTirUS, A NEW SPECIES OF THE FAMILY 

 UEOSTYLID^. 



BY PEOF. O. M. EEUTEE. 



According to Dallas (List Hemipt. Ins. Brit. Mus., i, 1851, p. 313), 

 the curious family Urostylida is divided into three genera— Urosti/lis 

 and Urochela, both provided with ocelli, and Urolabida, having no 

 ocelli. The author finds the distinctive marks of the two former in 

 the structure of the antennae ; referring to Urostylis the species with 



