378 Mr. E. E. Austen on Specimens of the Genus 



"VVien. ent. Z., vi. Jahrg., 1887, pp. 5, 11, and 13) (which it 

 •would surely he better to call the subfamily Cutiterebrin^) 

 was instituted by Prof. Brauer for Cutiterehra and the allied 

 genera Bogenhofera and Dermatohia. I now find it necessary 

 to introduce a fourth genus, allied to BogenJwfera, for an 

 interesting new species from the 'Mexican shore of the Gulf 

 of California. 



I am aware that, as a result of the recent labours of Brauer 

 and von Bergenstamm, the family QEstridaj is abolished, and 

 its constituent genera form a " section " of the Muscidse 

 (" Muscaria Schizometopa," Brauer and v. Berg.). For the 

 sake of convenience, however, I have decided to retain the old 

 terminology in the title of the present contribution. 



Cutiterehra funehris^ sp. n. (PI. XIII. figs. 1-1 h.) 



Cuterehra atrox, Clark (?), 'Essay: Addenda' (1848) ; description trans- 

 lated by Brauer, ' MonograpMe der Oestrideii/ pp. 241-242 (18G3). 



The type of this species is a male specimen from Trinidad, 

 forwarded for identification by Mr. J. H. Hart, of the Trinidad 

 Botanical Department. The larva is known in the island as 

 the " Mosquito Worm," and the present specimen, which is 

 accompanied by its pupa-case, was bred from a spiny rat 

 {LoncJwres gitianw, Thos.). Mr. Hart's statement on the 

 subject will be found below. This species is apparently 

 closely allied to C. atrox, Clk., with which after all it may 

 prove to be identical. Unfortunately, owing to the fact that 

 the typical specimen was sent home in a mixture of spirit and 

 glycerine, many of the characters, such as poUiuose markings, 

 liave been destroyed, while, on the other hand, in spite of 

 many attempts, 1 have not succeeded in obtaining access to 

 Clark's original description of G. atrox^ which is accom- 

 panied by a figure : 1 have therefore been forced to content 

 myself with Brauer's translation. On the whole, however, it 

 seemed better to describe the present specimen as new, espe- 

 cially as the type of Clark's species was obtained from 

 Mexico. Since writing the appended description I have 

 discovered that the type of G. atrox is in the Oxford Museum, 

 and by the kindness of Prof. Poulton I hope before long to 

 have an opportunity of comparing it. 



(^ . Dimensions agreeing very well with those given by 

 Brauer for G. atrox, taken from Clark's figure : length 

 24 millim. (25 millim., Brauer) ; length of wing 20 millim. 

 (as in Brauer); width of vertex 4 millim.; width of head 

 9^ millim.; width of thorax at base of wings 9| millim.; 

 width of abdomen at base of third segment 11| millim. 



Black ; reddish hrown on jjectus, pleurce, sides and iwsterior 

 angles of dorsum of thorax, base of scutelhim, and sides of 



