Mr. R. Shelford’s Studies of the Blattide. 251 
4, P, montana, nu. sp. 
g. Piceous. Head piceous, a triangular ochreous spot below the 
eyes, basal joints of maxillary palpi rufous, antennie slightly in- 
erassated, black. Pronotum trapezoidal, not covering the vertex, 
sides deflexed, posterior margin rounded, slightly produced. 
Tegmina piceous, apex of mediastinal field testaceous, sixteen to 
seventeen costal veins, discoidal field with six longitudinal sectors. 
Wings infuscated, ulnar vein tri-ramose. Abdomen, coxze and femora 
rufous ; cerci, apices of femora, tibize and tarsi black, tibial spines 
rufous. Supra-anal lamina produced, trigonal, sub-genital lamina 
trapezoidal, with one style. 
Total length 16 mm. ; length of tegmina 12°5 mm. 
Mr. Marana, 3000 feet, SARAWAK, BORNEO. 
Two examples (Oxford Museum). 
The species in general facies approaches the genus 
Pseudomops. 
5. P. ruficollis, n. sp. (Plate XIV, fig. 6.) 
¢. Head and pronotum bright rufous ; eyes, antennz (mutilated) 
and maxillary palpi black. Tegmina black, a white spot on each 
mediastinal area and at the base of each anal field. Wings fuscous. 
Abdomen black. Coxe with their distal ends and outer borders 
testaceous-white ; the remaining joints of the legs are missing. 
Total length 16 mm. ; length of tegmina 13°2 mm. 
PENANG (Cantor). One example. 
The arrangement of tue veins of the tegmina is the same 
as in P. pica, Wlk., and to that species this one is most 
nearly allied, and I expect that the antennze when perfect 
specimens are taken will be found to be plumose in the 
basal half as in P. pica. The insect is remarkably fusiform 
and both in colour and in shape is very like an Elaterid 
beetle. 
ii. The genus Hemithyrsocera, Sss., for reasons already 
given, has been transferred to the sub-fam. Ectobiine; the 
type species is H. histvio, Burm., since with this H, yuwewnda, 
Sss., is synonymous (wide antea). 
The determination of the species of the genus Psewdo- 
mops is attended with some ditticulty owing to the brevity 
of the diagnoses of the older authors and to the great 
variability of some of the species. I have been at some 
TRANS. ENT. SOC. LOND. 1906.—PART II. (SEPT.) 17 
