EUCOELA RAP^l. 209 



Synopsis of Species. 



1 (6) Cubitus complete or nearly so. 



2 (5) Antennal flagellum reddish ; legs for the greater part reddish. 



3 (4) Wings smoky tinted, the third joint of antennae fully one-half 



longer than the fourth, the club sub-abrupt, the sixth 

 joint distinctly longer than the seventh, and thinner 

 than it. Rapse. 



4 (3) Wings hyaline, the third joint not one-half longer than the 



fourth, the club abrupt ; the sixth joint equal in length and 

 thickness to the seventh. Crassicornis. 



5 (2) Antennas deep black ; the legs for the greater part black. 



Nigricornis. 



6 (1) Cubitus obsolete. 



7 (8) The third joint nearly one-half longer than the fourth, the 



fifth equal in length to the fourth ; nervures fuscous. 



Diaphana. 



8 (7) The third and fourth joints sub-equal, the fifth longer than 



the fourth ; nervures clear yellow. Testaceipes. 



16. EUCOELA 

 PL X, fig. 5 ? , 6 cf . 



Eucoela rapce, Westwood, Mag. Nat. Hist., viii, 178, fig. 17. 

 Cothonaspis scutellaris, Htg., Germ. Zeit., ii, 200; 1. c., iii, 356. 

 Figites foveator, Dbm., Sk. Hym. Fn., 30 ? 



Black, shining; the flagellum, the base of coxae, trochanters, more or less 

 : the femora, the tibiae, and tarsi, piceous-red ; wings hyaline, with a 

 rellowish-sruoky tinge ; the nervures testaceous or fuscous. Antennae 

 hree-fourths of the length of the body, stout, the third joint scarcely one- 

 lalf longer than the fourth, the fifth a little longer than the fourth, the 

 ast eight forming a clearly defined club, the sixth joint longer than 

 the seventh and almost thinner than it. Scutellum behind, and to a 

 less extent laterally, strongly rugose ; the cup almost oval ; the f oveae 

 large, wider than long. Abdomen lenticular, somewhat longer than 

 the head and thorax united ; the hair-fringe large, dull, griseous. First 

 abscissa of the radius more than half the length of the second ; the 

 third nearly as long as the first and second united, curved. Cubitus 

 complete. 



The <$ has the antennae longer than the body ; the third joint is a 

 little longer than the fourth, and not much thinner than it. 

 Length 2f 4 mm. 



The colour of the flagellum varies from fuscous to 

 bright piceous-red ; usually it is much darker coloured 

 in the $ . The amount of black on the femora varies 

 considerably ; sometimes the four anterior are without 

 black. The wings vary also in the intensity of the 



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