TENTHKEDlNIB/r:. DOLERUS. 8o 



base of the femora black, intermediate and posterior black, vvithi the tibise 

 testaceous; antennae shorter than the abdomen, black; wings somewhat 

 hyaline, rather dusky, with the nervures and stigma fuscescent. 

 Taken in Devonshire, and near Windsor, in June. 



Sp. 12. tristis. Antennis ahdomine brevioribus, capite thoraceque subtilissime 

 punctatis, niger, abdominis medio alarum squamis pedumque anterior um tibiis 

 totis, posticorum apice rufis. (Long. corp. 4| lin.; Exp. Alar. 8| lin.) 



Te. tristis. Panzer. — Dos. tristis. Steph. Catal. 338. No. 3936. 



Black: head and thorax fine'y punctured ; abdomen with the 2nd to the Sth 

 segments testaceous-red ; 4 anterior femora black, their tips, the tibiae and 

 basal joints of the tarsi testaceous; the base of the hinder tibiae also testa- 

 ceous, the rest of the legs and of the tarsi black; wings hyaline, with the 

 nervures black, their scales rufous ; antennae shorter than the abdomen. 

 Apparently rare : taken in June, near Dover, and in Devonshire. 



Sp. 13. dubius. Antennis abdomine brevioribus, capite thoraceque suhtilissime 

 punctatis, niger, abdominis medio pedibusque anterioribus rufis. (Long. corp. 

 5-tlin.; Exp. Alar. 11 lin.) 



Dole, dubius. King. — Dos. dubius. Steph. Nomen. 2d edit. col. 128. 



Black: head and thorax very finely punctured; abdomen with the 2nd to the 

 5th segments, and the base of the 6th, bright testaceous-red ; the remainder 

 black ; the anterior legs at the base, and the 4 hinder ones, entirely red ; 

 the tip of the anterior femora and their tibiae and tarsi red ; wings hyaline, 

 dusky at the apex ; nervures and stigma black; antennae shorter than the 

 abdomen. 

 Found, though rarely, in July, in the vicinity of London. 



Sp. 14. fuscipennis. Niger nitidus, abdominis medio riifo, alis nigricantibus. 



(Long. corp. 4 lin.; Exp. Alar. 7^ lin.) 

 Dos. fuscipennis. Steph. Nomen. 2d edit. Appendix. 

 Head, thorax, legs, and antennae entirely deep glossy black, with a delicate 



whitish pubescence ; abdomen the same, with the 3rd, 4th, and 5th segments 



bright red ; wings somewhat hyaline, blackish, with the nervures and stigma 



deep black. 



Found in the south of Scotland. 



Gentus XXIII.— DOLERUS, Leach. 



AntenncE rather short and stout, 9-jointed, the 2 basal joints short, and some- 

 what more robust ; 3rd and 4th long, and equal in length, 5th and remainder 

 gradually shortening and diminishing in length, the terminal one being a 

 little attenuated at the apex, and about half as long as the 3rd: mandibles 

 4-uentate : head broad : eijes rather prominent : ocelli 3 : wings ample, 

 anterior long, with 2 marginal aroolets, divided by a sttaight ncrvure, the 



