EUCOELA RUFULA. 197 



Synopsis of Species. 



1 (2) Pro- and meso-thorax more or less red. Rufula. 



2 (1) Pro- and meso-thorax entirely black. 



3 (6) Median segment more or less, and keels, red and densely 



covered with white hairs. 



4 (5) Head and thorax shining, impunctate, scutellum coarsely 



rugose, entirely black ; radial cellule wide, the third abscissa 

 curved. Longicornis. 



5 (4) Head and thorax opaque, alutaceous, scutellum not rugose 



but striated, the sides dentate, piceous-red; radial cellule 

 elongate, the third abscissa almost straight. Marshalli, 



6 (3) Median segment entirely black, not densely haired. 



7 (10) The antennae and legs red. 



8 (9) The antennae distinctly longer than the body, the apical eight 



joints elongate, not thicker than the preceding, the venter 

 black. Gracilicornis. 



9 (8) The antennas not longer than the body, the apical eight joints 



perceptibly thicker than the preceding, the venter broadly 

 red. Mandibularis. 



10 (7) The antennae black, and femora lined with black. 



11 (12) The antennae filiform, longer than the body, the sixth joint 



thicker than fifth,the wings suffused with yellow. Glottiana. 



12 (11) The antennae shorter than the body, stout, the sixth joint not 



thicker than fifth, the apical seventh the thickest, wings clear 

 hyaline. Proximo,. 



I. EUCOELA RUFULA. 

 PL IX, fig. 3. 



Eucoela rufula, Foerster, Yerh. ver. Pruss. Rhein, 1855, 258. 

 Psichacra dalei, Cam., Trans. Ent. Soc., 1879, 115. 



Antennae a little longer than the body, red, the apical four joints 

 fuscous; the first nearly double the length of the second, thickened 

 and semi-truncated at the apex ; the second globular, the third a little 

 longer than the fourth, thin, slightly thickened, and fuscous at the 

 apex ; the following three joints are very little shorter and of the same 

 form and colour; the next three are a little shorter, thicker, and 

 rounded at the apex ; the last four are thicker than the preceding, the 

 last is thicker and longer than the twelfth, but there is scarcely a well- 

 defined club. Head smooth, shining. Thorax smooth, shining, covered 

 with a scattered pile, dull red, the mesonotum obscured with black in 

 the middle, the pleurae and sternum for the greater part black. Cup of 

 scutellum raised, with a projecting rim, the posterior end projecting 

 over the top like a ridge ; scutellum finely rugose, the fovese mode- 

 rately deep ; the rim of the cup pale. Abdomen shorter than the 

 thorax, compressed, acute, the belly testaceous. Legs red. Wings 

 hyaline, the nervures pale testaceous. 



Length 4'5 mm. 



