TENTHBEDO GIBBOSA. 101 



24. TENTHREDO GIBBOSA. 

 PL VIII, fig. 8, ? . 



Tenthredo gibbosa, Fall., Acta, 1808, 64, 26. 



aucuparia, Klug, Berl. Mag., viii, 202, 168; Htg., 



Blattw.,304,16. 



juvenilis, Lep., F. Fr., pi. 6, fig. 5 ; Mon., 99, 279. 



gibbosa, Cam., Fauna, 14, 18. 

 Allantus aucuparite, Ste., 111., vii, 71, 42. 

 Perineum gibbosa, Thorns., Opus., 302, 5. 



solitaria, Thorns., Hym. Scand., i, 268, 8; Andre, 



Species, i, 418 ; Cat., 53,* 18. 



Black, shining; pronotum and tegula3 yellowish-white, the three or 

 four middle segments of the abdomen and legs reddish, coxae, tro- 

 chanters, apex of posterior femora, tibiae and tarsi black. Antennae 

 testaceous on the underside ; labrum and palpi white. Wings hyaline, 

 costa and stigma fuscous, pale at the base; the tr. radial neryure is 

 received near the middle of the cellule, or a very little beyond it ; the 

 third cubital cellule is longer than the second. 



The 6 has the femora lined above with black. 



Length 3| lines. 



Distinguished from lateralis by the absence of the 

 white lateral band on the abdomen, by the legs being 

 black at the base, the eyes not surrounded with white ; 

 the third cubital cellule distinctly longer than the 

 second, and by the tr. radial nervure being received 

 near the middle of the cellule. With the <? it is only 

 the femora that are lined with black above and the 

 pleurae and breast are not white. 



This species is equally common with lateralis, and 

 makes its appearance about the same time. It is found 

 in Braemar, Clydesdale, Berwickshire, Worcester, 

 Devonshire, the new Forest, Darenth and Coombe 

 Woods, Norwich. 



On the Continent it has been recorded from Scan- 

 dinavia, Germany, Holland, France, Switzerland, Italy, 

 Tyrol, and Hungary. 



