250 SYNOPSIS OP SPECIES. 



Synopsis of Species. 



1 (18) Thorax black. 



2 (9) Head red. 



3 (4) Radial cellule greatly elongate. Macrophadna. 



4 (3) Radial cellule not greatly elongate. 



5 (6) Collar broadly red. Maculicollis. 



6 (5) Collar entirely black. 



7 (8) Base of abdomen red; antennae thickened towards the apex, 



broadly and darkly inf uscated ; legs reddish-testaceous. 



Basimacula. 



8 (7) Base of abdomen black ; antennae thickened towards the apex ; 



legs yellowish-testaceous. Filicornis. 



9 (2) Head black. 



10 (13) Radial cellule minute, more or less trapezoidal; legs clear 



yellow. 



11 (12) Antennae clear citron -yellow, hardly infuscated towards the 



apex; radial cellule twice longer than broad; the apical 

 abscissa of radius not distinctly curved. Citripes. 



12 (11) Antennas blackish, yellow at the base ; radial cellule not twice 



longer than broad; the apical abscissa of radius roundly 

 and distinctly curved. Trapezoidea. 



13 (10) Radial cellule elongate, much longer than broad; legs and 



antennae not citron-yellow. 



14 (15) Legs and base of antennas clear testaceous-red ; radial cellule 



elongate ; the first abscissa of radius more than twice the 

 length of the second. Ullrichi. 



15 (14) Legs testaceous, with the femora infuscated ; radial cellule not 



elongated; the first abscissa of radius scarcely twice the 

 length of the second. 



16 (17) Legs reddish-testaceous; the femora lined with fuscous; the 



basal abscissa of radius twice the length of the third. 



Perplem. 



17 (16) Legs pale testaceous ; the femora fuscous ; the joints pallid. 



Crassa. 



18 (1) Thorax piceous-red or reddish-testaceous (head reddish or 



castaneous). 



19 (20) Legs and antennae fuscous-testaceous, the femora infuscated ; 



head castaneous ; abdomen broadly rufous. Caledonica. 



20 (19) Legs clear yellow, the femora not infuscated. 



21 (22) Head castaneous ; abdomen black, reddish at the extreme base ; 



radial cellule elongate. Piceomaculata. 



22 (21) Head reddish ; abdomen broadly reddish, black at apex or base. 



23 (24) Length 1| mm. ; abdomen reddish, black at base ; radial cellule 



elongate, narrow ; the apical abscissa of radius not distinctly 

 curved. Testacea. 



24 (23) Length 1 mm.; abdomen black, reddish at the base; radial 



cellule short, wide ; the apical abscissa of radius with a dis- 

 tinct rounded curve. Nigriventris. 



