on the Genus Cermatia, ^c. 307 



Sp. 2. Cermatia longicornis. Havdvvick, Lin. Tran. xiv. p. 131. 



Resembles the last very much, but has the antennae shorter and 

 the last pair of legs longer. 

 Habitat Bengal. 

 Length 1.25 inch,, relative lengths 1.0, 1.2, 1.8. 



Sp. 3. Cermatia nohilis, mihi. (PI. XVIL fig. 1 — 4.) 



This giant of the tribe has the head small, sub-ovate, with a 

 narrow black streak passing from the labrum along the edge of 

 the fovea of the antennae to the inner canthus of the eye ; another 

 more diffused from thence to the back of the head ; a minute 

 black line mesially imbedded in a brown patch, and with two 

 angular black marks near its middle. Antennae very long, slender, 

 brown. Body elongate, spindle shaped, being considerably broader 

 about the fourth scutellum, which is nearly square, dilated pos- 

 teriorly, margin waved and furnished with numerous strong teeth 

 or spines, — in this latter character the rest resemble it ; all are pale 

 brown, with a middle yellow line edged with brown, a dark longi- 

 tudinal fascia on each side, and an obscure transverse one across 

 the base. Legs long, successively lengthening, the last being 

 very attenuated. Coxae yellowish brown, with a blue annulus 

 near the apex. Femora greenish, with two deep blue annuli. 

 Tibiae yellow, faintly annulated. Tarsi dark reddish brown. 



Habitat Mauritius and India. 



Fig. 1. The animal of the natural size. 



2. The sixth scutellum and twelfth leg. 



3. One of the tarsal annuli. 



4. The second auxiliary leg and part of the first on the 



right behind it. 



Length 2.0 inch,, relative lengths 1.0, 1.6, 2,0. 



Sp. 4. Cermatia coleoptrata. 



Scutigcra coleoptrata, Lam. 



Cermatia livida, Leach. 



Cermatia , Savigny, Egypt, pi. 1, fig. 5. 



This I found very common at Gibraltar. It differs from the two 

 first in being much smaller ; head more rotund, body more linear, 

 last pair of legs longer, and, from the next species, in the scutella, 

 the fourth being one quarter longer than broad, edges parallel and 

 slightly waved, with longitudinal rows of minute spines, and the 



