101. TENTHREDO. 303 



Allied to T. pallicornis, from which its black antennae will at once 

 distinguish it. It much resembles Maerojphya (?) nigropicta, Smith, 

 from Japan (ante, p. 269) ; but the legs are differently coloured, the 

 head and thorax are darker above, and there is no black spot in the 

 middle of the pectus. 



Hab. Siberia. 



a. $ . (Type.) Salair. Dr. Finsch. 



91. Tenthredo sibirica. 



Allantus sibiricus, Kriechb. Verh. z.-b. Wien, xix. p. 590 (1869). 

 Tenthredo spectabilis, Mocs. Tijdschr. Ent. xxi. p. 199 (1878). 



Hob. Siberia. 

 a-e. <$ 2 • Siberia. 



92. Tenthredo prospera. 



Tenthredo prospera, JErichs. Middend. Reise, ii. pt. 1, p. 62 (1851). 

 Hah. Siberia. 



93. Tenthredo scita. 



Tenthredo scita, JErichs. Middend. Reise, ii. pt. 1, p. 63 (1851). 

 Hah. Siberia. 



94. Tenthredo adnsta. 



(Plate XI. fig. 8.) 



Tenthredo adusta, Motsch. Bull. Mosc. xxxix. p. 181 (1866). 

 Tenthredo erratica, Smith, Trans. Ent. Soc. Lond. 1874, p. 381. 



Exp. al. 1 poll. 5 lin., long. corp. 8 lin. 



Shining rufo-testaceous ; a spot on the vertex around the ocelli, 

 behind which are two deep depressions, lined with black, extending 

 quite to the back of the head. Thorax with black spots on the 

 frontal and lateral lobes ; apical half of the abdomen black, both 

 above and below. Pace, a line in front of the four front coxae, and a 

 large lateral spot at the base of the hind coxae testaceous ; pectus 

 wholly black ; four front coxae black at the base. "Wings yellowish 

 hyaline, with piceous nervures ; costa and stigma yellow ; fore 

 wings dusky at the tips. 



Motschulsky only mentions one spot on the thorax; otherwise 

 his description agrees with this species. Smith states that the male 

 has black antennae, except the two basal joints ; but no such speci- 

 men exists in the British Museum, and the remark would probably 

 apply better to the male of T. xanthotarsis. The Siberian specimens 

 of erratica, alluded to by Smith, appear to belong to T. fulva, 

 King. 



Hah. Japan. 



a. 2 • (Type of T. erratica.) Hakodadi. H. Whitely, Esq. 



