314 August Schlotterer. 



Species satis rohnsta, suhnitida, capite et thomcis dorso i)«;-«»? ^n*"" 

 cfatis, hoc antice et postice transf>er$e striolato. Caput ralde coiirexnm, trans- 

 rerse rotundatum. OcelU inter oculos inserti. Mandibulae magnae rufae extus 

 et apicibus nigris, dente vaUdo suhbasali, alteris duohus ante apicem acutum 

 et falcatum. Thorax brevis, metanoto decUri. Pedes 4 antici satis graciles 

 2 postici crassi, tibiis mediocriter clavatis, tarsorum articulis duobus basaJibus 

 extus in spinam acutam productis. Alae luteo parum tinctae, stigmate magno 

 nigro. 



30. Gasterupfion subtile Thoins. 



roentis suhtiUs Thouis., Opusc. Ent., Fase. IX, p. 847, 9 18S3 



9. Nigrum, suhopacum, mesonoto omnium sid)tilissime coriaceo, costa 

 occipiti^ tenui ?iaud laminato-reflexa. Terebra corporis longitudine, valviilis 

 apice niveo. 31andibulae haud ferrugineae. Abdomen Q segmento 6:0ventraU 

 ad medium tisque fisso. 



Praecedenti (G. Thomson i) magnitudine, statura, colore terebraque fe- 

 minae simillimus, capite haud subtilissime transversim strigoso, occipitis costa 

 tenui, mesonoto subtilissime coriaceo, haud rugoso- striata facillime distin- 

 guendum. 



Hab. Karrland. 



37. Gasteruption tarsatorium Cress. 



Foemis tarsatorins Cress., Proc. Ent. Soe. Phil., V. III, p. 132, 9 ISW 



Female. Black, subopaque; face, cheeks aud tlie thorax bave a more or 

 less distinct silvery-sericeous appearauce iu ceitaiu lights; maudibles, except 

 base and apex, yellowisb ferrugiuous: antennae blackisb-piceous above and rufo- 

 piceous beneatb, sometimes tbe basal Joint beueatb is rufous; neck long; thorax 

 roughly and conüuently pnuctured. somewbat transversely rugose above; tegulae 

 and tubercles mostly pale nifous, sometimes piceoiis; wings hyaline and beauti- 

 t'iiUy ividescent; the two anterior pairs of legs are pale rufous, base and tips 

 of their tibiae, and the base of their tarsi whitish, their femora sometimes ob- 

 fuscated; the anterior and intermediate coxae are piceous, the anterior pair 

 sometimes rufous, posterior pair always black and rugose; posterior legs black, 

 their trochanters rufous. their tibiae and tarsi near the base white, the latter 

 sometimes reduced to a dot or subobsolet; abdomen long and slender, tip of 

 the secoud and third segments on each side brradly rufous, sometimes the tip 

 of the fourth segment is obscurely so; iu two specimens the rufous coloring is 

 indistinct on the second and third segments; ovipositor about as long as the 

 body; fulvous, valves black, tiped with white. 



Hab. Massachusetts. 



38. Gasiei'upfion thoracicum Gue'r. 



Focmts Vwradcttm Guer., Iconogr. K. Ass. Ins., p. 437, o^ 1828(1839)— ISU 



Noir. Une longue ligne fauve et longitudinale de cliaque cüte du corselet. 

 n'atteiguant pas le bord auterieur. Pattes uoires, avec le dessous des cuisses, 



