The Derinato^dcra. 295 



The body itself is bald, except the last abdominal segment 

 of the male, which is covered with thick yellowish 

 pubescence. The tibiae and tarsi are pubescent and the 

 femora have a few bristles ; the second tarsal segment is 

 not quite cylindrical, but slightly broadened and flattened, 

 which may perhaps indicate a transition towards 

 Chelidura. 



Spoyigiphora geayi, sp. n, 



Fusco-testacea. Caput supra rnargine postico pone oculos 

 utrinque impresso-signatum : anteiinaj seguieiito 1 maximo, 2 

 ininimo, 3 longiori, 4 breviori, dehinc sensim longioribus (seg- 

 inenta 8 restant). Pronotuui quadratum, antice rectanguluui, postice 

 rotundatum, prozona tumido-elevata, metazona deplanata, sulculo 

 medio ante marginem posticum obsoleta instructa. Elytra ampla, 

 fusco-testacea, macula humerali magna flava ornata ; alse amplae, 

 medio flavo-maculatas. Metasternum punctis impressis duobus in- 

 structum, margine postico truncato. Mesosternum feque longum ac 

 latum. Segmentum ultimum dorsals magnum, oblongum, Iseve, 

 inerme. Lamina subgenitalis $ valde productum, prope basin 

 lateribus parallelis, deinde sensim convergentibus, prope apicem 

 iterum parallelis vel paullo divergentibus, apice ipso triangulari. 

 Segmentum penultimum ventrale magnum, rotundatum, quadratum, 

 margine postico medio paullo rotundato-excisum ; segmentum ulti- 

 mum parvum, extus penultimum, a latere visum, latum, brevissi- 

 mum. Pygidium breve, transversum, tumidum, marginibus in 

 lauiinam angustam circumcurrentem deplanatis, apice truncato, 

 angulis lateralibus acutis. Forcipis bracchia valida, parallela, recta, 

 margine interno usque ad apicem denticulata, margine interne ad 

 tertiam partem longitudinis dente parvo acuto armata ; apice tantum 

 attenuata, acuta, baud vel vix incurva. J . 



Long, corporis ... 11 mm. 

 „ forcipis ... 2" 8 „ 



Hah. Darien. {F. Geay, 33-96, 1 $, Mus. Paris.) 

 A very distinct species, characterized by the form of the 

 subgenital lamina and of the pygidium and forceps. 



S'pongiphora assiniensis, Borm. 



De Bormans only knew the female of this species, of 

 which I think I have found the male, from Fernando Po, 

 in the Paris collection. The following are the characters 

 of the male : — 



