new (jenera and species of TentliredinidcB. 89 



truncated ; eyes large, reaching to near the base of the 

 mandil)les. 



The genus described here possesses certain characters 

 which separate it from the allied genera of Tenthredo and 

 MacropliT/d. It has the four submarginal cellules and the 

 middle cellules in the posterior wings as in Tenthredo, but 

 has the lanceolate cellule of Empltytus, i. e., having an 

 oblique cross nervure. In the form of the antennas also it 

 does not differ very much from Tenthredo, hut the clypeus 

 is truncated at the apex and much smaller than in that 

 genus. Macropliija ISturmii, Klug, is stated to have an 

 oblique cross nervure in the lanceolate cellule, thereby 

 differing from the other species in the genus, but in the 

 present genus the coxa3 are smaller and the posterior 

 calcaria much shorter, than in AIacro])ht/a, Avhile it is 

 further distinguished from it by the form of the cljpeus. 

 The claws are bifid. 



Tenthredo incerta. Cam., must be referred to this 

 genus, but I know not if Macrophya Sturmii belongs to 

 it, not having a specimen of that species to examine. 



Siobla Mooreana, sp. n. 



$. Black, pilose, half shining, punctured; four apical 

 joints of antennre, clypeus, labrum, palpi, pronotum, 

 scutellum, postscutellum, a thin line across the apex of 

 metanotum, a round point below the tegulas (which are 

 black), two narrow bands at the base of abdomen, base of 

 coxfE, trochanters, base of femora, four anterior femora at 

 apex, four anterior tibiaa and tarsi, basal half of posterior 

 tibias and base of tarsal joints, with the calcaria, Avhite. 

 INIandibles black. Pleuras opaque, punctured, with a fine 

 pile ; front projecting, emarginated. Scutellum raised, 

 smooth, shining. Antennre pilose at base ; second submar- 

 ginal cellule slightly angled in the middle, Avhere it receives 

 the first recurrent nervure. The abdomen is smooth and 

 sinning, and l:)ears shallow punctures. 



Length 4,^ lines; alar. exp. 12 lines. 



Hab. — W. Yunan (Dr. Anderson). 



S. Mooreana is easily known from S. incerta by the 

 absence of red coloration on the thorax, the white on the 

 head and apex of antennas, &c. 



TRANS. ENT. SOC. 1877. — rATtT 11. '>UNE.) II 



