260 Mr. R. Shelford’s Studies of the Blattide. 
pronotum is strongly produced backwards. Tegmina with the 
mediastinal area, except at the base, and eight oblique costal streaks, 
testaceous. The sub-genital lamina and the discs of the sterna of 
the three preceding segments bright rufous. Coxe white-edged. 
Cerci black, not spatulate. 
Total length 12 mm, ; length of tegmina 10 mm. 
One example (W. F. H. Rosenberg coll. Nov. 1896). 
(Oxford Museum.) 
The species appears to be quite distinct from all the 
other black species of this genus; it approaches P. 
luctuosa, Sss., more closely than any other. 
21. P. bicolor, n. sp. (ECUADOR, Paramba.) (Plate XVI, 
figs. 12, 12a; and Plate XIV, fig. 7.) 
¢. Head and antenne (mutilated) black. Pronotum orange-red 
with some very obscure darker markings. 'Tegmina fuscous with 
the costal margin narrowly fulvous for two-thirds of its length. 
Wings fusco-hyaline. Abdomen bright luteous except the last five 
terga and the sub-genital lamina which are black; on the 6th 
tergum is a prominent mamillary tubercle covered with an orange 
pubescence and with a small opening on each side. Cerci black with 
the two terminal joints white. Coxe and trochanters bright luteous ; 
the 2nd and 8rd pairs of femora bright luteous with the apices 
fuscous ; the Ist pair of femora, the tibize and tarsi fuscous ; the 
tibial spines rufous. 
Length of body 13°5 mm. ; length of tegmina 14 mm. 
One example (W. F. H. Rosenberg coll. Mar. 1897). 
This species is quite distinct from all the known forms. 
The opening of the so-called repugnatorial glands on the 
6th abdominal segment is remarkable and unlike any other 
known to me. The 7th abdominal tergum is almost 
entirely covered by the 6th tergum, the posterior border 
of which is incised. 
Il. Crerct spatulate. 
22. P. femoralis, Wik. (BRAZIL, Rio de Janeiro.) 
Pseudomops femoralis, Walker, |. c. p. 81, n. 18 (1868). 
Thyrsocera crinicornis, Brunner, |. c. p. 126, n. 21 (1865). 
Brunner’s description of P. crinicornis applies with 
great exactitude to this species, four examples of which 
