318 Mr. R. Shelford's Studies of the Blattidae. 



Gyna. buchholzi, Gerstaecker, Mitt. Ver. Neuvorpomm 



\. Rilgen, xiv, p. 72 (1883). 

 ? Apotroqia avgolco)S'is, Kirby, Ann. Mag. Nat. Hist., ser. 

 7, V, p. 281 (1900) ; Distant's Ins. Transvaal, p. 21, 

 PI. I, fig. 11 (1900). 

 A handsome species, readily distinguished by the obso- 

 lescent markings on the pronotnm and by its primrose- 

 yellow colour. 



Kamerun (Greifswald Mus., type of hiichholzi ; Oxford 

 Mus. ; Berlin Mus. ; coll. Bolivar) ; Fernando Po (Greifs- 

 wakl Mus.) ; ANGOLA (British Mus., type of laticosta). 



8. G. oblonga, Borg. 



Gyiut ohloiir/a, Borg, Bih. Svonsk. Vet.-Akad. Handl., 

 xxviii, Aid. 4, No. 10, p. 21, PI. II, fig. 1 (1902). 



The form and extent of the markings on the prouotum 

 varies considerably ; a reliable character is presented by 

 the oblique fascia at the apex of the tegmina, which is 

 present in all the specimens of both sexes that I have seen. 



Kamerun (Stockholm Mus., type ; Oxford Mus. ; Berlin 

 Mus. ; coll. Bolivar). 



9. G. nigrifrons, Bol. 



Gyna nigrifrons, Bolivar, J. Sci. Lisboa (2) i, p. 77 

 ^1889). 

 Benguella (Lisbon Mus., type); Loanda (coll. Bolivar). 



10. G. peringueyi, sp. n. 



^ . Testaceous. Eyes on vertex 1 mm. apart. Vertex and frons 

 not striate. Four stripes on the vertex, the vertex hetween the eyes, 

 a macula between the antennal sockets, two spots on the clypeus, 

 castaneous ; antennae castaneous at base, remainder fuscous. Pro- 

 notum faintly striate posteriorly, lyrate markings clearly defined. 

 Tegmina mottled with testaceous, no rufescent macula on disc, a 

 piceous spot between radial and mediastinal veins. Wings slightly 

 infuscated, ulnar vein with 11 rami, 7 being incomplete. Abdomen 

 testaceous mottled with castaneous ; supra-anal and sub-genital 

 laminae of usual shape. Legs pale testaceous, posterior metatarsi 

 elongate. 



Total length 20 mm. ; length of Ijody 17 mm. ; length of tegmina 

 18 mm. ; pronotum 5*1 mm. x G*8 mm. 



Benguella (Cape Tuwn Mus., type). 



