ART. 16 NEW ICHNEUMON-FLIES MUESEBECK 7 



men about as long as thorax, not broad, a little compressed apically ; 

 chitinized plate of first tergite broadening gradually posteriorly, 

 mostly smooth on basal half, delicately rugulose apically; second 

 tergite much shorter than third, more than twice as broad as long, 

 very finely rugulose, opaque laterally, shining medially; following 

 tergites smooth and polished; hypopygium attaining apex of abdo- 

 men; ovipositor sheaths barely exserted. Black; tegulae black; all 

 coxae and basal segment of trochanters black ; apical segment of all 

 trochanters mostly yellowish: remainder of anterior legs yellow, ex- 

 cept the femora at base beneaih blackish; middle femora j'ellowish 

 on outer side, mostly blackish within and below ; middle tibiae and 

 tarsi yellow ; posterior legs with femora black, their tibiae yellowish, 

 black on apical fourth or third, their tarsi black; wings hyaline, 

 stigma and veins brown. 



Male. — Like the female in the essential characters. 



Type. — U.S.N.M. No. 42874, from Bernardston, Mass. 



Host. — CingUia catenaria Drury. 



Cocoons. — White, or yellowish white, apparently gregarious, but 

 loose and not inclosed in a mass of silk. 



Eight females and two males reared August 26, 1929, by J. V. 

 Schaffner. jr.. under Gipsy Moth Laboratory No. 12418 R7. 



PAROLIGONEURUS, new genus 



This is a genus of Microgasterinae and is very closely related to 

 Oligoneurns Szepligeti. the genotype and only described species of 

 which is from Brazil. It strikingly resembles Oligoneurus in the 

 unusual wing venation, the broad head, the widely separated an- 

 tennae, and the small posterior coxae and short tibial spurs, but 

 diifers especially in having bare ej^es and antennae with fewer seg- 

 ments. 



Head transverse, though not strongly so, a little broader than 

 thorax, immargined behind; eyes practically bare; antennae 18-seg- 

 mented, inserted unusually high on face and widely separated at 

 base; frons short, only slightly descending anteriorly; notauli want- 

 ing; prepectus immargined; posterior coxae small; spurs of posterior 

 tibiae very short; radial cell open, radius represented only by a 

 short spur; both intercubiti wanting, all cubital cells therefore con- 

 fluent; cubitus and basal vein separated at base, arising indeiDend- 

 ently from parastigma; first brachial cell open; nervulus inter- 

 stitial with basal vein; abdomen short, the chitinized plates of the 

 first and second tergites similar to those of some species of Apanteles. 



Genotype. — Par oligoneurus johnsoni. new species. 



