162 J. Wood-Mason — New Insects from Tenasscrim. [July, 



f urnisliecl with two tubercles of greatly unequal size, not a trace of which 

 is to be seen in its supposed partner. 



LoNCnODES GODAMA, n. sp. 



Very closely allied indeed to L. verrucifer (from the Andamans), 

 but differing in its more scabrous body, especially in the male, in having the 

 liead armed with a transverse curvilinear ridge of varying development in- 

 stead of conical horns, in having the supra-anal plate in the female longer 

 than the terminal dorsal abdominal segment, in its greater size, in the struc- 

 ture of the male forceps, etc. 



A male and a female measure respectively : — 



$ Total length 4 in. 4 lines ; head 1'75 lines ; prothorax 1*75 ; meso- 

 thorax 13*25 ; metathorax 8-75 ; abdomen 20*75 + 5*5 = 21-25 ; antennjB 

 22*25 ; anterior femur 12"75, tibia 14 ; intermediate femur 8'75, tibia 10 ; 

 posterior femur 10, tibia 13 25. 



$ Total length 5 in. 9*5 lines ; head 3'25 lines ; prothorax 3 ; me- 

 sothorax 16 ; metathorax 11*25 ; abdomen 2 in. 5-25 lines + 6 lines + 2*5 

 lines = 3 in. 1"75 lines ; antennae 2 in. ; anterior femur 14 lines, tibia 14 ; 

 intermediate femur 10'5 lines, tibia 10*5 ; posterior femur 12 lines, tibia 13. 



Hab. Ahsown, on the Taoo Range, Upj^er Tenasserim, between 2000 

 and 6000 feet elevation, — abundant. • 



Ohs. — In one specimen of the female the curvilinear ridge between the 

 eyes is enormously developed and the supra-anal plate semioval as in L. ver- 

 rucifer which latter difference seems to be the result of injury received 

 during immaturity. 



LoNCHODES POEUS, Westwood. 

 Z. porus, Westwood, Monograph of Phasmidaj, 1869, p. 42, pi. VII, fig. 9, ^. 



The female is very similar to those of L. JBootanicus and L. (olim Bac- 

 teria) Baucis (confer Wood-Mason in J. A. S. B., 1875, p. 217). The 

 four whitish bodies described by Westwood (with probably nothing but a 

 dried specimen for observation) as metathoracic and mesothoracic tubercles 

 turn out to be very minute rudiments of tegmina and wings, which are 

 represented in the female by small yellow blotches only. Similarly, the 

 tubercles faithfully represented by Westwood in his figure, but not men- 

 tioned by him in his description of Lonchodes virgea, are rudiments of 

 organs of flight ; this species should be removed from the genus Lonchodes 

 to its proper place next to Bhib. acantliopus. 



Hab. L. porus occurs abundantly throughout the valley of the 

 Houng-da-rau, Upper Tenasserim ; many individuals of both sexes in all 

 stages of development having been sent up by Mr. Limborg. 



The species forms with Lopaphus lolas, Lonchodes Baucis, and Loncho- 

 des Boot aniens, a series of most closely allied forms showing in a most in- 

 structive and conclusive manner the vitter valuelessness of the presence or 

 absence of wings as a generic character in this family of orthopterous 

 insects. 



