NEMATUS FULVIPES. 57 



Nematus Irevls, Htg., Blattw., 205, 39; Evers., Bull. Mosc., 

 xx, 15, 7 ; Br. and Zad., Schr. Ges. 

 Konig., xxiv, 135, 113. 



aphantoneurus, Foer., Verb. Yer. Rhein., xi, 323, pi. vi, 



f. 35 (wing) ; Br. and Zad., Schr. 

 Ges. Konig., xxiv, 134. 



fulvipes, Thorns., Opus., 617, 7 ; Hym., Scand., i, 90, 



11 ; Br. and Zad., Schr. Ges. Konig., 

 xvi, pi. 6, f. 18 (lar.) ; Andre, Species, 

 i, 111 ; Cat., 15* 36 ; Cam., Fauna, 

 33, 18. 



alnivoriis, Cam., E. M. M., xi, 107 ; Fauna, 33, 17 ; 



Andre, Species, i, 122 ; Cat., 15,* 45. 



Antennae a little shorter than the body, black, the third joint slightly 

 longer than the fourth, the remaining joints becoming gradually 

 shorter. Head entirely black, shining, vertex minutely punctured ; 

 mandibles piceous. Thorax and abdomen entirely shining black; 

 tegulae greyish-white ; the sheath projecting, hairy. Wings scarcely 

 hyaline, having a faint smoky hue in the centre, the nervures fuscous ; 

 costa and stigma obscure testaceous. Legs reddish-yellow, the apical 

 joints of the four anterior, and almost the whole of the posterior tarsi, 

 as well as the apices of the posterior tibise, black. 



The ^ I have never seen. According to Thomson it has the antennae 

 strongly compressed at the base, attenuate at the apex, the femora 

 black, the anterior knees palish at the apex, and the posterior tarsi 

 and the apex of tibiae blackish-fuscous. 



Length If 2| lines. 



Ab. a. Tibise white. 



b. Coxae black at the base. 



c. Coxge and base of femora black (rufipes, Lep.).* 



d. Labrum white (brevis, Htg.). 



e. Tegulae black. 



Fulvipes agrees with compressicornis in its body-form 

 and general coloration. It is distinguished from it by 

 its much smaller size, black mouth, much thinner and 

 longer antennae, the joints being also not produced 

 beneath, and the tarsi are much paler, while the red 

 tinge on the legs is much deeper. The 3 has the 

 femora black. 



It is possible that there are more than one species 

 included in the above description. The commonest 

 form in this country (that which I described under the 

 name of alnivorus in the belief that it was the species 

 which Hartig described under that name in the Stett. 



* Zaddach named for me a specimen with the legs entirely red 

 Rufipes. 



