302 MEMOIRS OF THE CARNEGIE MUSEUM 



Thorax icilh a white lunula before the tegulffi, rarely without ; ovipositor strongly exserted, thick and 

 compressed, the sheaths broad ; abdomen rather long, as seen from above conic-ovate. 



Cerchysius Westwood (type Encyrtus subplamts Dalm.). 



33. Frons rather narrow, the eyes large, converging above, the lateral ocelli lying close to the eye margin ; 



abdomen oval or ovate, the ovipositor not exserted ; thorax not closely or deeply punctate ; hind 



wings with the costal cell short and narrow. Sceptrophorus Forster (type S. sceptriger Forst.). 



Frons not narrow, the eyes smaller and only slightly converging above, the lateral ocelli not close to 

 the eye border, distant ; scrobes semicircular ; abdomen oval-rotund, the ovipositor exserted but 

 very slender ; thorax short, closely punctate, or with large, deep punctures ; hind wings with the 



costal cell broad and extending to the booklets Echthroplexis Forster 



(type Cxiwcercua puncticoUis Thorns.). 



34. Head as viewed from the side with the frons not prominent ; antenufB normal or at the most with only 



the scape compressed or dilated ; wings hyaline, rarely fuscous or subfuscous with whitish transveree 

 or hyaline bands, the marginal vein rarely punctiform, but rarely longer than the stigmal vein, the 

 postmarginal vein most frequently developed, rarely wanting or .shorter than the marginal or stigmal 



veins 34 



Head as viewed from the side with the frons prominent, the lace iiiflexcd ; antennsE frequently 

 strongly compressed, dilated ; front wings usually fuscous or with ftiscous rays, the marginal vein 

 somewhat thick, oblong, very rarely much shorter or much longer than the stigmal vein, the post- 

 marginal vein usually wanting ; ovipositor not or scarcely exserted 48 



35. Marginal vein very short, punctiform, rarely longer than thick, the stigmal vein from two and one-half 



to three times longer than the marginal, the postmarginal vein wanting or short, only slightly devel- 

 oped, rarely well developed ; scape slender, or at most subclavate ; body metallic 36 



Marginal vein not short, punctiform, although rarely longer than the stigmal vein, the postmarginal 

 vein most frequently well developed, rarely somewhat shorter than the marginal or stigmal veins 38 



36. Pedicel obconical, much stouter and longer than the first joint of the funicle, sometimes as long as 



joints 1 and 2 united ; frons rather narrow, the eyes as seen from in front somewhat convergent 



above ; club of antennse not especially large, shorter than the funicle 37 



Pedicel short, scarcely longer than thick ; frons moderate, the ocelli about their width from the eye 

 margin ; club of antennse large, the length of the funicle or nearly ; funicle joints short, submonili- 



form, the three or four terminal joints wider than long Coccidencyrtus A.shmead 



(type Encyrtus ensigcr How.). 



37. Lateral ocelli close to or touching the eye margin ; postmarginal vein not or only slightly devel 

 oped. 



Eyes bare ; postmarginal vein not developed. Ooencyrtus Aslnnead 



(type Encyrtuit clifiiocampse Ashm.). 



Eyes pubescent ; postmarginal vein as long as tbe marginal Ageniaspis Dahlbom (part). 



Lateral ocelli not close to the eye margin, from one and a half to twice their width from it ; post- 

 marginal vein somewhat developed Psyllaephagus Ashmead (type Encyrtus pachypnydx How.). 



38. Species not metallic ; head and thoi'ax opaque or subopaque, alutaceous, or closely microscopically 



punctate, or shagrcened and punctate 39 



Species metallic or submetallic 40 



39. Postmarginal vein present. 



First joint of the funicle shorter than the pedicel, all the funicle joints being short; marginal 

 vein punctiform Aphycus i\Iayr (type Encyrltis apwalis Mayr). 



