314 



August Sc h letterer. 



Speeles satis röbusta, suhnitida, capite et thoracis dorso parum pun- 

 ctatis, hoc antice et postice transverse striolato. Caput valde convexuw, trans- 

 verse 7'otundatum. Ocelli inter oculos inserti. Mandibulae magnae rufae extus 

 et apicihus nigris, dente valido subhasali, alteris duohus ante apicem acutum 

 et falcatum. Thorax hrevis, metanoto declivi. Pedes 4 antici satis graciles 

 2 postici crassi, tibiis mediocriter clavatis, tarsorum articuUs duobus basalibus 

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

 nigro. 



36. Gasteruption subtile Thoms. 



Foenus subtilis Thoms., Opusc. Eut., Fase. IX, p. 847, $ 1883 



Q. Nigrum, subopacum, mesonoto omnium subtilissime coriaceo, costa 

 occipitis tenui haud laminato-reflexa. Terebra corporis longitudine, valvulis 

 apice niveo. Mandibulae haud ferrugineae. Abdomen Q segmento 6 : ventrali 

 ad medium usque fisso. 



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

 minae simillimus, capite haud subtilissime transversim strigoso, occipitis costa 

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

 guendum. 



Hab. Narrland. 



37. Gasteruption tarsatorium Cress. 



Foenus tarsaforius Cress., Proc. Ent. Soc, Phil., V. III, p. 132, 9 1864 



Female. Black, subopaque; face, cheeks and the thorax have a more or 

 less distinct silvery-sericeous appearance in ceitain lights; mandibles, except 

 base and apex, yellowish ferruginous ; antennae blackish-piceous above und rufo- 

 piceous beneath, sometiraes the basal Joint beneath is rufous; neck long; thorax 

 roughly and confluently punctured, somewhat transversely rugose above; tegulae 

 and tubercles mostly pale rufous, sometimes piceous; wings hyaline and beauti- 

 fully iridescent; 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 second and third segments on each side brradly rufous, sometimes the tip 

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

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

 body; fulvous, valves black, tiped with white. 



Hab. Massachusetts. 



38. Gasteruption thoracicum Guör. 



Foenus thoracicum Guer., Icouogr. R. Ass. Ins., p. 437, cT 1828 (1839)— 1844 



Noir. Une longue ligne fauve et longitudinale de chaque cöte du corselet, 

 u'atteignant pas le bord anterieur. Pattes noires, avec le dessous des cuisses, 



