NEMATUS APPENDICULATUS. 67 



112 ; Cat., 15,* 43 ; Cam., Fauna, 33, 

 20 ; Brischke, Schr. Ges. Konig., 

 xxiv, 134, pi. 7, f. 9 (lar.). 

 Nematus cathoraticus, Foer, Verb. Ver. Rheinl., xi, 325 t vi, 



f. 36. 

 Peleteri, Andre, Species, i, 111; Cat., 15,* 37. 



Smooth, shining, covered with a silky pubescence, the vertex finely 

 punctured, black ; labrum testaceous ; tegulse and basal edge of prono- 

 tum white. Legs white, with a yellowish tinge, the coxae black at the 

 extreme base ; femora with a reddish tinge, suffused in the middle with 

 fuscous ; apex of posterior tibise and the apical joints of the tarsi black. 

 Antennae a little shorter than the body, black, the apical joints brownish 

 beneath, moderately stout ; the third joint a little longer than the 

 fourth ; apex of clypeus truncate. Abdomen longer than the head and 

 thorax, broad, stout, keeled above, the apex bluntly rounded; cerci 

 short, the saw scarcely projecting. Wings subhy aline, iridescent ; the 

 costa and stigma obscure testaceous ; the transverse cubital nervure 

 absent ; the second recurrent nervure is received considerably in front of 

 the second transverse cubital; the third cubital cellule is small, very 

 slightly widened at the apex; in the second cellule is a distinct horny 

 point. 



The <$ (teste Thomson) has the antennae a little thickened at the 

 base, slightly attenuate at the apex, fuscous-testaceous, the posterior 

 femora nearly all black, and the posterior tarsi fuscous. 



Length 3 3 lines. 



There are two well-distinguished forms of this 

 insect. One like that described above : the other has 

 the body more shining, not so pubescent, the extreme 

 apex of the clypeus of the same colour as the labrum, 

 the antennae quite black ; the first transverse cubital 

 nervure is well denned ; the pronotum is rather broadly 

 edged with white along its whole length. A specimen 

 from Sutherlandshire has the antennas (apparently) 

 longer than usual ; the extreme base of the pronotum 

 only is white, while the posterior femora are black and 

 the four anterior at the base, the general coloration 

 of the legs being also darker, the posterior tarsi being 

 all black; the first transverse cubital nervure is dis- 

 tinct. In a few specimens the legs are of an almost 

 uniform colour, and more rarely the mouth parts are 

 fuscous, or even black. Most of the specimens that I 

 have examined have the antennae black ; it is very rare 

 to find examples with the first transverse cubital ner- 

 vure entirely obliterated, and even rarer is it to find 

 specimens without any white on the pronotum. 



