Mr. R. Shelford’s Studies of the Blattidex. 261 
are in the Hope Museum, Oxford ; one example was sent 
to Berlin for comparison with Burmeister’s type of crint- 
cornis and was found to be quite distinct ; nor was it found 
to agree with the other species described by Burmeister in 
that collection. 
23. P. brunneri, Sss. (SURINAM.) 
Thyrsocera brunneri, de Saussure, Rev. Zool. (2) xxi, p. 
111 (1869); Miss. Mex. Orth. p. 49 (1870). 
Thyrsocera crinicornis, var. fulva, Brunner, l. cp. 127 
(1865). 
I have examined the type at Paris, and in my opinion 
the species is distinct from P. femoralis, W1k. 
24. P. crinicornis, Burm. (BRAZIL, Para.) 
Thyrsocera crinicornis, Burmeister, |. c. p. 499, n. 2 
(1838); de Saussure, Rev. Zool. (2) xxi, p. 111 
(1869); Miss. Mex. Orth. p. 48 (1870); de Saussure 
and Zehntner, |. c. p. 33, n. 7 (1893). 
Pseudomops affinis, Walker, |. c. p. 79, n. 9 (1868). 
De Saussure has identified this species correctly, and 
his description of it should render its determination easy ; 
a drawing of an example in the Hope Museum, Oxford, 
was sent to Berlin, and found to correspond closely with 
Burmeister’s type. 
25. P. luctuosa, Sss. (SURINAM.) 
Thyrsocera luctuosa, de Saussure, Rev. Zool. (2) xx, p. 99 
(1868) ; Miss. Mex. Orth. p. 48, pl. 1. ff. 27, 27a (1870). 
~ The species is quite distinct from P. erinicornas, Burm. 
26. P. tristicula, Stil. (BRAzIL, Rio de Janeiro.) 
Pseudomops tristicula, Stil. Freg. Kugenie’s Resa, Zool. v. 
p. 310 (1858). 
Thyrsocera tristicula, Brunner, |. c. p. 125, n. 17 (1865). 
An entirely black species with a testaceous vitta on each 
side of the abdomen beneath. 
