134 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



Pteronus limbatus Cresson. Larva feeds on willow. Fairfield, 

 I August, 1904 (B. H. W.). 



°P. latifasciata (Cresson). Nematus latifasciatus Cresson. 

 Pteronus latifasciatus Cresson. Larva feeds on birch. 



P. ventralis (Say). Nematus ventralis Say. Pteronus 

 ventralis Say. Howard, Insect Book, PI. xii, Fig. 9. Larva 

 feeds on willow and poplar. PI. i, Fig. 3. Farmington (E. N.) ; 

 Ne^v Haven. 



°P. marlattii (Dyar). Nematus marlattii Dyar. Pteronus 

 tnarlattii Dyar. Larva feeds on alder. 



''P. harringtoni (Marlatt). Pteronus harringtoni Marlatt. 



^P. fylesi (Marlatt). Pteronus fylesi Marlatt. 



°P. tricolor (Marlatt). Pteronus tricolor Marlatt. 



''P. rufocincta (Harrington), Nematus rufocinctns Harring- 

 ton. Pteronus rufocinctus Harrington. 



°P. dyari (Marlatt). Pteronus dyari Marlatt. Larva feeds 

 on alder. 



""P. erythrogastra (Norton). Nematus erythrogaster Norton. 



P. corylus (Cresson). Nematus corylus Cresson. Pteronus 

 corylus Cresson. Pteronus erythrogaster Norton. Howard, 

 Insect Book, PI. xiv, Fig. 32. Larva feeds on Corylus. 



''P. fulvicrus (Provancher). Nematus fulvicrus Provancher. 

 Pteronus fulvicrus Provancher. Nematus salicis Ashmead. 

 Larva feeds on willow. 



P. populi (Marlatt). Pteronus populi Marlatt. Larva feeds 

 on poplar. New Haven, 20 July, 191 1 (A. B. C). 



°P. hudsonii (Dyar). Nematus hudsonii magnus Dyar. 

 Pteronus hudsonii Dyar. Larva feeds on poplar. 



"P. antennata Marlatt. Pteronus antennatus Marlatt. 

 P. ribesi (Scopoli). Nematus ribesi Scopoli. Pteronus 

 ribesi Scopoli. Nematus ventricosus of many authors. 

 Imported or Common Currant Worm. Common throughout 

 the state on wild and cultivated currants and gooseberries. 

 New Haven (A. E. V., W. E. B., H. L. V., B. H. W.). 



•"P. carpini (Marlatt). Pteronus car pint Marlatt. Larva 

 feeds on ironwood. 



