|Grylloblatta campodeiformis nahanni |
Likely as G. c. campodeiformis: cold damp locations near mountain tree lines and glacial bogs.
These insects have relatively conspicuous body pubescence in comparison to G. c. athapaska, and have prominent major setae as well, giving them an overall hairier look than the other subspecies. They have 29 antennal segments as G. c. athapaska also do, but are unique in that the third antennal segment is 1.5 times the length of the second segment. Pronotal length is approximately equal to the length of the head, and the lateral margins are noticeably convergent. Postero-lateral margin is curved, and tapers posteriorly. Both sexes have relatively long legs and cerci. Females of this subspecies are larger than females of G. c. campodeiformis, and males can be identified by the details of copulatory sclerites (Kamp 1979) and pronotum being wider in proportion to length.
For specimens from known localities, the best method of distinguishing species is geographically, because no subspecies are sympatric. See genus Grylloblatta for general characteristics.
Likely similar to G. c. campodeiformis.
Rare and isolated populations, but probably not immediately threatened.
Likely similar G. c. campodeiformis: Adults and juveniles are omnivorous. The main component of the adult diet is wingless crane fly (Chionea obtusa) adults, as well as collembola, microcoryphia, oribatid mites, adult diptera, aphids, and staphylinids. Juveniles also mainly consume other arthropods. These insects have also been observed eating moss and decaying vegetation.
Known only from northern British Columbia locations at Mt. McDame and Limestone Peak, Cassiar Mountain Range.
Holotype (male) was collected on Mt. McDame (1647 m.), in the Cassiar Mountain Range, British Columbia on September 17, 1969. Allotype (female) was collected on Limestone Peak (1830 m.), in the Cassiar Mountain Range, British Columbia on September 16, 1969.
|species page author||Taylor, C.||2004 |