EUOOELA DIAPHANA. 211 



May be known from rap& by the shorter antennae, 

 which are also thicker, with the club more dis- 

 tinctly abrupt; the third joint not one-half longer 

 than the fourth, the sixth not longer than the seventh, 

 the wings shorter and clear hyaline, the abdomen 

 longer, being longer than the head and thorax united. 



Cambuslang, on the Clyde. 



18. EUOOELA NIGBIOORNIS. 

 PI. X, fig. 9. 



Trybliographa nigricornis, Cam., Trans. Ent. Soc., 1883, p. 369. 



Black ; extreme apex of coxae and trochanters, knees broadly, tibiae 

 and tarsi, testaceous; the latter two infuscated towards the apex. 

 Antennas not much shorter than the abdomen and thorax united ; the 

 third and fourth joints equal in length ; fifth a very little shorter ; sixth 

 to twelfth moniliform, longer than broad, striated, thicker than the 

 basal joints ; last joint not much thinner, but longer than the penulti- 

 mate. Thorax covered with a scattered pale pubescence ; scutellum 

 rugose, its cup almost oval ; sides of median segment covered with long 

 griseous hair. Abdomen a little longer than the head and thorax 

 united, somewhat compressed ; the hair-fringe dense, griseous. Wings 

 hyaline, slightly yellowish at the base ; cubital nervure continued to the 

 end of the wing ; tegulae dull black. The legs are covered with longish, 

 stiff-looking, closely-set hair of a white glistening colour. 



The cj has the antennae nearly one-half longer than the body ; the 

 third joint is a little shorter and thinner than the fourth, which is 

 swollen, and is shorter than the fifth. 



Length 4 mm. 



Comes nearest to E. diaphana, but sufficiently dis- 

 tinguished from it by its longer and entirely black 

 antennae, by the third joint not being much longer 

 than the fourth, and by the cubitus being traced. 



Clydesdale, Ayrshire. 



19. EUCOELA DIAPHANA. 



PI. X, fig. 7. 



Cothonaspis diaphanus, Htg., Germ. Zeits., iii, 356. 



Black, shining ; flagellum for the most part fuscous ; the trochanters, 

 the apex of femora largely, the tibiae and tarsi, piceous-red; wings 

 hyaline, the nervures testaceous. Antennae longer than the head and 



