NEW SPECIES OF POEFICULID^. 527 



9th, when they again become black. Abdomen, forceps, and 

 legs luteous, the terminal joint of the abdomen often blackish, 

 and the tibiae always black. Forceps flattened, triquetral, with 

 a row of tubercles on the upper ridge, and also on the inner 

 ridge, to beyond the middle, where there is a strong triangular 

 tooth ; the tips strongly and suddenly incurved ; in the female 

 these characters are less strongly marked. In the male tbe 

 pygidium is short and rounded ; in the female it is long and 

 narrow, twice as long as broad, with a strong tubercle at each 

 angle, and the centre triangularly pointed. 



Hah. Tejuca, Petropolis, and Constancia {Bev. Hamlet Clark) ; 

 Theresopolis {Fruhstorfer). 



Spaeatta ptgidiata, sp. n. (PL XX. fig. 10; 10 a, pygidium 

 and forceps.) 



Differs very slightly from the last species in colour, except 

 that the terminal segment is less frequently marked with 

 blackish, and the tibiae are more brown than black, and the 

 elytra, &c. have a slight purplish shine. In the male, the 

 pygidium is shorter, broader, and less convex than in S. ClarJcii, 

 and the tubercles on the lower carina of the basal half of the 

 forceps before the tooth are more regularly arranged. In the 

 female, the pygidium is very short and broad (much broader 

 than long), with a much shorter projection in the middle. 



Hah. Eio Janeiro {Fry). 



These species are so closely allied that they can only be 

 separated by the different shape of the pygidium, which is most 

 conspicuous in the female. They are allied to 8. rufina, Stal, 

 and 8. ScJiotfi, Dohrn, and are perhaps confounded with them 

 in collections. ^S*. pygidiata answers so well to Stal's description 

 of 8. rufina, that I should have regarded it as that species, but 

 that Sti.1 does not mention the strong central tooth on the 

 inner edge of the forceps beyond the denticulations. Dohrn's 

 description is shorter than Stal's, but he compares the species 

 with. 8. pelvimetra, Serville, which has the forceps very sharply 

 angulated. He also mentions that the scape of the antennas was 

 black in his specimens; the rest being red. Stal says : " An- 

 tennis articulis subelongatis, flavotestaceis, extus fuscescentibus." 

 The British Museum at present possesses no specimen which I 

 can refer to the true 8. rufina. The male specimen from Gruate- 

 mala, described and figured by De Bormans in the ' Biologia 



