256 Mr. R. Shelford's Studies of the Blattidx. 



11, P. negleeta, u, sp. (Brazil, Rio Grande do Sul.) 



9 • Head and mouth parts piceous ; antennse black with a tes- 

 taceous band beyond the middle occupying six joints, incrassated at 

 base and pilose. Pronotum as long as broad, anteriorly truncate, not 

 covering the vertex of the head, posteriorly produced, obtusely 

 angled, dark fuscous, all the margins bordered with yellow, broadest 

 laterally. Tegmina fuscous or rufo-fuscous, mediastinal field liyaline 

 or testaceo-hyaline, marginal field partially hyaline ; seventeen to 

 eighteen costal veins, discoidal field with six longitudinal sectors. 

 Wings infuscated. Abdomen fuscous, segments laterally bordered 

 with testaceous, apex rufo-fuscous ; supra-anal lamina triangular, 

 produced, sub-genital lamina ample, semi- orbicular, rufoiis, posteriorly 

 margined narrowly with fuscous ; cerci fuscous. Legs black, the 

 tibial spines rufous, the coxae margined with testaceous. 



Total length 10*5 mm. ; length of tegmina 8 mm. ; pronotum 

 3 mm. X 3 mm. 



Three examples labelled in Brunner's handwriting 

 " Thyrsocera sp. n!' (Oxford Museum). 



The species is allied to P. cincta, Burm., and may be 

 distinguished from it chiefly by its smaller size, shorter 

 tegmina, broader pronotum and by the colour of the legs. 

 A similar example from Monte Video in the Paris Museum 

 stands under the name P. cincta. 



12, Pseudomops affinis, Barm, (Surinam, Brazil, 



Para.) 



Thyrsocera affinis, Burmeister, 1. c. p. 499, n, 4 (1838) ; 



Bruuner, I.e. p. 124, n, 14 (1865). 

 Thyrsocera hirticornis, Burmeister, 1. c. p. 500, n. 10 



(1838); Brunner, I.e. p. 124, n. 14 (1865). 



Dr, Taschenberg of Halle having kindly lent me the 

 type of P. ajfinis I have been able to compare it with 

 Brunner's description and find that it agrees admirably 

 with that account. The type of P. hirticornis is ap- 

 parently in Brunner's collection and is considered by 

 Brunner to be the male of P. ctffinis. 



13, Pseudomop)s Jiavipes, Burm. (Brazil, Rio de 



Janeiro.) 



Thyrsocera Jiavipes Burmeister, 1. c. p. 499, n. 5 (1838) ; 

 Brunner, 1, c, p. 125, n. 16 (1865), 



