50 [August, 



3. Nana, King. 



4. Pusilla, Klug. 



5. Suhcana, Zadtlach, Beschr., p. 34. 



Black, sliining, knees slightly, aud posterior tibise, white ; anterior tibise white in 

 front, black behind ; apex of posterior tibise and all the tarsi deep fuscous. Head 

 covered with a grey pile ; clypcus slightly emarginated at apex ; antennse as long as 

 the abdomen, a little attenuate at apex, the joints distinctly separated from each 

 other and slightly produced at the apex beneath, the third joint a little longer than 

 fourth, the last thinner and longer than eighth. Wings clear hyaline, marginal 

 nervure interstitiate. Tegulse black. Sheath of saws largely projecting. Cenchri 

 large, clear white. 



The (J has the antennoe nearly as long as tlie abdomen and lialf the thorax, the 

 joints more distinctly separated tlian in the $ , and the tibiae more or less suffused 

 with fuscous. 



From J3. pusilla this species is readily distinguished by its much larger size, 

 stouter form, longer and stouter antennae, the joints being more sharply divided, 

 more obscui*e colour of the legs, black tarsi, and genei'ally more deeply coloured 

 costa and stigma. From cinereipes it is known by its longer but less oblong body, 

 lighter coloured tibiae, clearer wings, interstitiate marginal nervure, and more pro- 

 jecting terebra. From the more or less similarly coloured species of Monophadnus 

 it is easily known by not having a medial cell in posterior wings. AUernipes may 

 be known from it by having the antennae not much longer than the thorax. 



Length 3 lines ; alar exp. 6 lines. 



In some males the tibiae are nearly quite black. 



Commonly distributed, appearing in May among herbage. 



6. Glnereijjes, Klug. 



7. Fuliginosa, Schr. 



8. Ephijjpium, Pz. According to Thomson, thia is a form of 

 B. cefhiops, Klug and Hartig, nee Tab., with part of the thorax blood- 

 red. It is possible that this is the case, but I have not yet been 

 able to find a British specimen of the black variety. Nothing definite 

 is known regarding its early history. Apart from the red colour ou 

 the thorax (in the type), ephippium is easily known from fuliginosa 

 by its smaller size, shorter antenna?, much longer third sub-marginal 

 cellule, and distinct pentagonal area ; from cinereipes by its narrower, 

 more rounded body, distinct pentgonal area and punctured scutellum, 



9. Fuscipennis, Fall. = luteiventris, Kl. 



10. Melanocephala, Fab. 



11. Bipuncfata, Kl. 



12. Lineolata, Kl. 



13. AIchemillcF, Cameron. I believe it will be found that this 

 apparently common species passes current for uncfa, Klug, which, 

 however, it cannot be, since the true vncta in the J (the only sex 



