122 [Nor ember, 



group from the next (dep/'essus). to wLicli it has a general resemblance 

 in coloration. 



7. Pamphilivs rs-ANiTus, Till. (pi. vi, £. Q, vol. ii, $ ). 



The group of depeessus. 



Head and thorax black, spotted with yellow marks ; rarely entirely black ; 

 abdomen black at base and generally at apex, fulyons in the centre, rarely fulvous 

 at apex ; legs sti-aw-yellow, the tarsi with a reddish tint. Antennae 19 — 23 jointed, 

 the 3rd joint as long as, rarely shorter than, two following united ; scape black 

 above, yellow beneath ; basal half of flageUum reddish, the apical black above j 

 wings hyaline ; stigma yellow, or partly fuscous. 



The species agree closely in form and coloration ; the only 

 differences being that some have fewer or no marks on the head, 

 and in one the abdomen becomes for the greater part fulvous, while 

 the stigma may be yellow, fuscous, or blact. Structurally, the an- 

 tennae differ in one or two species having the 3rd joint shorter than 

 the following two united, and thus approach the group of inanitus ; 

 but as these differ from the latter in some respects, and agree with 

 depressus in other characters, they are most naturally placed in the 

 present Section. Zaddach forms a separate group for Jiortorum, but 

 I have not done so, as it merely dift'ers from depressus in the head 

 having the yellow marks obsolete, or much reduced, and in the stigma 

 being blackish ; and arhustorum, moreover, forms a connecting link in 

 this respect. 



1 (2) Third joint of antennae not much longer than 4th arhustorum. 



2 (1) Third joint of antennae double the length of 4th. 



3 (6) Stigma fuscous or black, pleura immaculate. 



4 (5) A longish curved mark on each side of vertex ; abdomen fulvous in middle 



only, stigma fuscous cingulatus. 



5 (4) A small mark on vertex touching the eyes; abdomen with segments 3 — 5 



entirely fulvous ; stigma blackish kortorum. 



6 (3) Stigma yellowish ; pleura marked with yellow. 



7 (8) Third joint of antennae not much, if more, than double the length of 4th ; 



flagellum reddish-yellow latifrons. 



8 (7) Third joint of antennae nearly treble the length of 4th. 



9 (10) Front rugosely punctured, no mark over antennae ; abdomen mostly violet- 



black pallipes. 



10 (9) Front not rugosely punctured, two marks over antennae ; abdomen broadly 

 fulvous depressus. 



8. PAiTPHiLirs AEBUSTOErM, Fab. (pi. vi, f. 7, vol. ii, ? ). 

 = stramineipes, Htg. 



The short 3rd joint of the antennae easily separates this species 

 from the rest of the group. 



