NORTH AMERICAN NEUROPTERA. 291 



48. Cordulegaster obliquns (supposition). 



Selys Monogr. Goinphin. p. 349. 



One male nymphae skin by Boll from Dallas, Texas, in MoLachlan's 

 collection. Length 44 mm. 



The only nympha is not in very good condition ; similar to C. annu- 

 latus, but the head partly broken ; the mask narrower ; the abdomen 

 broadest in the middle, longer ; segments 8 and 9 with a short, straight 

 lateral spine ; appendages not full twice as long as 10, tip sharp, very 

 little incurved ; the middle one shorter than the inferiors ; lateral ones 

 as in 0. annulatus. 



As Mr. McLachlan has received from Boll the imago of C. ohliquus 

 from Dallas, and as this species is at present the only one known from 

 Texas, the supposition seems very probable. The description will be 

 more detailed when complete specimens are at hand. 



A Bibliographical and Synonyinica] Catalogue ofthe North 

 American CITSKIPIDJB, with description of new species. 



BY WILLIAM H. ASHMEAD. 



Jacksonville, Florida. 

 (Paper No. 6.) 



My aim in presenting this Catalogue of the North American Cynipidae, 

 is to show our present knowledge of the forms of this interesting hymen- 

 opterous family ; to bring together all the described North American 

 species, and to place them as far as possible in their proper genera, so 

 that they may the more readily be identified. 



The arrangement of the genera of the phytophagous Cynipidoe, is 

 that proposed by Dr. Gustav Mayr, in his " Die Genera der galleiibe- 

 wohnenden Ci/nipiden,^^ with the exception that I have thought it advi- 

 sable to still continue to separate the Psenidae from the Inquilinse. 



The classification of the parasitic Cyuipidae is still very imperfect and 

 will require a thorough revision. 



It is hoped, however, that the list of the described North American 

 forms here given for the first time, will induce students to pay more at. 

 tention to their collection, so that larger and better series may be col- 

 lected and thus enable a more satisfactory classification to be made in the 

 near future. 



In an appendix the new species will be found described. 



