HYLOTOMA ATRATA. 59 



8. HYLOTOMA ATRATA. 

 PL I, fig. 10, ? ; and PI. IV, fig. 3, Palpus. 



Tenthredo atrata, Forster, Cent., 80 (1771). 



croceipennis, Christ, Naturg., 450. 

 Arge ustulata, Schrank, F. B., ii, 226. 

 Cryptus segmentarius, Pz., F. G., Heft 88, pi. xvii. 

 Hylotoma segmentaria, Klug, Berl. Mag., vi, 291, 9 ; Htg., 

 Blattw., 85, 12 ; Thorns., Hym. Sc., 

 i, 36, 7 ; Ste., 111., vii, 18, 10. 

 # Klugii, Leach, Z. M., iii, 122, 4 ; Ste., 111., vii, 17, 9, 



pi. xxxv, f. 4. 



albicrux, Brulle, Expl. Moree, iii, pt- 2, 395, 879. 

 discus, Costa, Bic., Ent. Parten., 17 and 26, No. 19 ; 



F. N. Hot., 4, pi. Ixi, f. 5. 



atrata, Br. and Zad., Schr. Ges. Konig., vi, 102, 10; 

 Andre, Species, i, 42 ; Cat., 5,* 14 ; 

 Konow, B. E. Z., 1884, 309; Cam., 

 E. M. M., xxii, 85. 

 saliceti, Rudow, S. E. Z., 1871, 383. 



Coppery-black, shining. Knees, tibiae, and tarsi yellowish-white; 

 wings yellowish-hyaline, costa and stigma yellowish-testaceous, a 

 fuscous metallic fascia below the stigma, and the radial cellule is more 

 or lessinfuscated, especially along the cubital nervure. Antennas short, 

 thick, not much more than double the length of the head. Head much 

 swollen behind the eyes. Antennal tubercle broad, its borders not very 

 distinct ; above and below the ocelli is a deep rounded fovea. Clypeus 

 a little incised ; the front is wide, so that the antennae are wide apart ; 

 the face is densely covered with a white silky pubescence. The third 

 cubital cellule is shorter considerably than the second ; the third trans- 

 verse cubital nervure is scarcely curved. The transverse median 

 nervure is received in front of the middle of the cellule. In the pos- 

 terior wings the recurrent nervure is received in the apical sixth of 

 the cellule ; the blotch is very large, broad, extending nearly across the 

 entire segment. In the abdomen, above, the middle segments are 

 marked with transverse, dull, testaceous bands of variable extent. The 

 apex of the abdomen is densely covered with silky white hairs. The 

 fourth joint of maxillary palpus is short, not much longer than the 

 second and about three-fourths of the length of the fifth. The sixth 

 is longer than the fifth and more than twice the length of the fourth. 



The $ has the wings fuscous throughout, but the radial cellule is 

 darker, as in the ? . 



Length 3^ 4^ lines. 



The only record I can find of the larva of this species 

 is a remark by Brischke (Schr. d. Natur. Ges. z. 

 Danzig, vi, pi. i., fig. 10), who suspects that a larva 

 which he found on oak was the larva of this species. 



