PAKA8ITICA CHALCIDIDiE. 75 



•2. —Petiole longer tliiiii posterior coxa- ; % pjiljii normal 3. 



I'etioie not longer than posterior eoxa^ : second segment of iiMonien deeply 



emarginate and the tliird very large; % palpi abnormal 4. 



:J. — Head with compresseii cheeks, vertex not very narrow. 



Paraiisides discernihle *MeriSMlu» Walk. 



Parapsides not plainly discernible. 



Abdominal segments 2 and 3 very large ^Sphegignster Spin. 



Abdominal segment 2 very large, the others short, often retracted. 



*rrji»toi»ryiiiiiu>« Fiirst. 

 Head with rounded cheeks, sublenticular, vertex narrow; postpetiole very 



large; collar broad *M.yilfoillopnsi Walk. 



4.— Vertex acute in the middle; parapsides indistinct. ...^Cyrtogaster Walk. 

 Vertex not acute medially ; para])sides plainly discernible. 



*l»oIycystus We.stw. 



.'>. —Parapsides plainly separated ; stignuil club large.. .*Pachycrepis Forst. 



Parapsides not plainly distinguished Paeliyiieiiroil Walk. 



Tribe Dl par ides. 



Petiole .shorter than posterior coxa> ; % anten"'e not verticillate-pilose. 



^Pansteuou Walk. 



Petiole linear, longer than coxa;; postpetiole very large: % antennse with well 



separated joints, spar.sely verticillate v^Dipara W^alk. 



Tribe Pteromdlides. 



Posterior tibife 2-spur.-ed *Diinaclins Thorn. 



Collar ni/t separated; funicle filiform, joint 1 large. 



Marginal vein ihickened, stigmal nearly same length or a little longer; 



body .short Sub"u. *C8er.ocrepiB Thom. 



Marginal vein delicate, longer than stigmal. 



Abdomen with a basal yellow band Subgen. *Dimachus Thom. 



Abdomen without band Subgen. *Hemitrichu8 Thom. 



Collar separated. 



Fii-st funicle joint short. 



Antenna' short, clavate Subgen. *Habritus Thom. 



Antenna' filiform Subgen. *Dinarmus Thom. 



First funicle joint cyliiidriciil ; antenna* filiform. .Subgen. *Picroscytu8 Th. 



Posterior tibia' 1-spurred ....2. 



2.— Anti'unal club subulate 9 • tJi" t^o'iico-acuminate % ; nu'tathorax punctate, no 



fold and no spiracular sulcus Merisus Walk. 



First funicle joint short; rim of the nu'tathonix with large ]iuiictures; 



coxa- all rufous , Suogcn. Boeotomus Filrst. 



First funicle joint as '.uig as the following. 



Abdomen subcylindrical. joint :J short Subgen. Merisus Walk. 



\bdonu'n subovate. dorsum often flattened. .Subgen. *Homoporus Thom. 



^ntennal club not subulate 3. 



:{. -.\!itenna' insi'Vted below the middle of the face; stigmal club .scarcely dis- 

 cernible ; vertex not medially acute ; cheeks round; abdomen not 

 rotund; left mandible .'{-. right 4-dentate; joint 1 of funicle equal 

 to the others in size, rarely abruptly smaller Eutelu!« Walk. 



