DESCRIPTION OF 

 THREE NEW SPECIES of THYNNIDAE 



(Hymenoptf.ra) 

 Bv ROWLAND E. TURNER, F.Z.S., F.E.S. 



LESTRICOTHYNNUS EXTRANEUS sp. nov. 



.-: Niger; nian(lil)iilis, clypt-n, liiu-a (ililii|ua utriiKiuc inter antennas, 

 orl)itis oculoruni, proplenris linea antice, niesonoto niacnla quadrata l)0^-tice, 

 scutello macnla nias^na mediana niaciilac|ue ])arva utrinque angiilis basalibus, 

 postscutellii linea trans\ersa, niesupleuris macula suIj alis, tergitis 1-6, 

 sternitis(|ue l-(\. macula trans\ersa utrinque, tcrgito sei)tim(i fascia lata 

 (ihlirpia utrin(|ue, sternitiK|ue jirinid macula apicali tlavis : tegulis brunneo- 

 testaceis : alis bvalinis, \'enis nigris. 



9 Nigra: cajjite prntboracetpie rufis, pedibus pvgidiociue tcstaceis ; ter- 

 gitis 1-4 macula par\a fla\ a utrin(|ue. tergitu secimdci trans\-erse septemcarin- 

 ato, jn-gidio angustissimo. 



Long. : — , 15-17 mm. ; — , 12 mm. 



c' Antennae as lung as the head, thorax and median segment combined, 

 the a])ical juints a little mcire slender than the basal, and very feebly arcuate 

 beneath. C'lypeus strongly con\ex. S])arselv but dee])ly punctured, the a]Mcal 

 margin l.jroadl}- trans\erse. Mead and thorax cUisely ])unctured, the pubes- 

 cence greyish brown on the head and dorsal surface of the thorax, white on 

 the sides of the head and on the jjleurae. Interantennal prominence rather 

 broad; a low frontal carina nit extending to the anterior ocellus. I'ronotum 

 rather strongly narrowed anteriorly, the anterior margin straight. Median 

 segment rounded, rather more finely iiunctured than the thorax, rather closely 

 clothed with long whitish pubescence, which is not dense enough to hide the 

 sculpture. Abdomen rather slender, dee])ly but rather sparsely punctured, 

 the sides almost jiarallel, excejjt at the extremities ; seventh tergite with a 

 few curyed striae at the apex. IIy])opygium elongate triangular, with an 

 acute apical spine, the basal angles produced into a rounded prominence on 

 each side. Sternites more closely punctured and sparsely clothed with white 

 hairs, the black ground colour mingled with ferruginous. Second abscissa 

 of the radius a little longer than the third; second recurrent ner\ure received 

 just beyond one-quarter from the base of the third cubital cell. 



