the Fauna of Biomeliacea^. 431 



beneath the antepeuultimate abdominal tergite as clearly as 

 they can in the new Homalopteryx ^. 



Note on the Helodine Larv.e. — Professor G. H. Car- 

 penter has kindly determined these larvae, of which such 

 numbers occurred in the Bromeliacese, as being either 

 members of or closely related to the genus Helodes. No 

 imago to which they could belong was found. They are 

 long and narrow, not tapering much towards the posterior 

 extremity, flattened dorso-ventrally, with filamentous an- 

 tennse nearly as long as their bodies, and a group of rectal 

 gills. Prof. Carpenter writes (in lltt.) that they are closely 

 like the larvae of Helodes minuta, but on the whole less 

 specialized, being less flattened dorso-ventrally. He and 

 Miss MacDowell have recently published (Quart. J. Micr. 

 Sci., vol. Ivii. part 4, 1912, p. 373) a very interesting paper 

 in which the mouth-parts of the larva of Helodes minuta 

 are described and figured. I have made preparations of the 

 mouth-parts of two of the bromeliadicolous larvae, and on a 

 cursory examination find them much like those of H. minuta 

 in general structure, though diflering in detail (especially in 

 the form of thte labrum, which is strongly emarginate) ; the 

 hypopharynx and maxillu]0e appear much as they do in 

 pi. XXXV. fig. 11 of the paper just cited. 



Descriptions of New Species. 

 Blattidae. 

 ]. Homalopteryx scotti, sp. n. (PI. X. figs. 1 & 2.) 

 ($ . Head and antennae rufo-castaneous ; vertex of head 

 freely exposed, smooth, impunctate; eyes widely remote, 

 their distance apart and that of the antennal sockets equal ; 

 ocelli distinct, closer together than the eyes. Pronotum 

 trapezoidal, anteriorly and posteriorly subtruncate, impunc- 

 tate, nitid, castaneous, broadly bordered laterally with 

 ochreous, a narrow line of the same colour on the anterior 

 border, extreme outer lateral margins castaneous, Scutellum 

 not visible. Tegmina ovate, semicorneous, not extending 

 beyond the middle of the antepeuultimate segment of the 

 abdomen, impunctate, strongly overlapping, marginal area 



* See Shelford, below, under tlie description of Homalopteryx scotti ; 

 also his papers in ' Zoologist,' vol. xi. 1907, p. 221, and 'Records of the 

 Indian Museum,' vol. iii. part 2, l'J09, p. 125. 



