PARAlSITICA — <'HAL('II>II)yK. 66 



spurs being umi.sually devc'l()|K'<l ; the tarsi altli()u<rh generally •> 

 jointed, have sometimes only 8 or 4 joints. The abdomen is of varied 

 shape, both in the ditterent species and in the sexes of" the same spe- 

 cies; sometimes it is petiolate, but I'sually sessile or sul)sessile, or 

 rather connected to the thorax by a very short narrowed portion of 

 its base; the ovipositor is generally concealed, although occasionally 

 it is exserted and longer than the body. 



Mr. L. O. Howard, who has made the studv of this interesting 

 family a specialty, lias published a " Synopsis" of the subfamilies and 

 genera in the Entoiint/of/irK Aintrlcutiit for l^<^<(j, from which the fol- 

 lowing tables are copied almost verbatim. 



The family is divisible into two JSections, as follows: 



Tarsi .Vjoiiited ; anterior tihiii- iiniiod with a large eurved spur ; aiiteiinie usually 

 many jointed MACHOCKNTKI. 



Tarsi usually 4-jointed, rarely li-jointed ; very rarely lieteroniemus ; anterior 

 tiliiie with a delicate, short, straight spur; antennse usually with few joints. 



MI('R(>('I:NTKI. 



Table of Subfamilies. 



Section .MAfliOCKNTKI. 



Posterior femora much swollen 2. 



Posterior femora not greatly enlarged .'',. 



2. — Anterior wings folded ; ovipositor curved over dorsum of the ahdomen. 



Leucospidinse . 

 Anterior wings not folded; ovipositor not curved over dorsum of the ah- 

 domen Chalcidinse. 



.'i. — Thorax strongly developed, much arched and deeply punctate 1. 



Thora.x not greatly developed .">. 



4. — Stiguial vein not developed ; second ahdominal segment inclosing the rest. 



Eucharinse. 



Stigmal vein developed ; ahdominal segments plainly seen Perilampinse. 



r>. — Collar large ; antennje many jointed; parapsidal sutures of mesothorax com 



pktu (». 



Collar small, frequently not visihle in the middle; anteume usually with 



few joints 7. 



ti.— Body not metallic: sides of scutellum almost straight Eurytominse. 



Body metallic; sides of scutellum both curved Toryminse. 



".— Mesosternal i)leura not discernible; middle legs long, saltatorial, with very 



long tibial spur H. 



Mesosternal pleura usually well marked; middle legs not saltatorial; first 



tarsal joint not swollen and incrassate }>. 



8. — Marginal vein long; occipital margin of vertex rounded ; antennie 13-jointed. 



Eupelminse. 



Marginal vein usually very short ; antennie generally 11-jointeil ; occijiital 



margin of vertex usually acute ; parapsidal sutures of me.sothorax 



obliterated Sncyrtinse. 



TR.\.NS. AMKR. ENT. .'iOC. (9) SUPPL. VOL. 1887. 



