Unidentified roaches from the Grenadines

[Allpet Roaches]

I was originally sent these for possible identification. They are species found in the Grenadines (micro islands located between St. Vincent and Grenada in the southern Caribbean). At the time I thought the requirement was species identifications which could be rather difficult but the following are the probable family and subfamily. I was able to get permission to use the photos today (you cannot post another person's photographs without permission). Of course if anyone is absolutely certain on a genus or species identification, please post.

Blaberidae, Epilamprinae - A large species found under rotting wood on the ground,

never seen any with wings. Fairly common.

Blattellidae, Pseudophyllodromiinae - A small species found in the base of dry coconut branches

high on the tree. Not common.

Blattellidae, Blattellinae - A small species (13mm) found in leaf litter on the ground.

Abundant.

Blaberidae, Epilamprinae - A medium-sized species found in leaf litter near freshwater

ponds. Not common.

[Matt K]

I have no info on any of those. However, they are all very nice looking.

[Megaloblatta]

I've had a look at the photos and can identify one, and possibly a second. Going from left to right the species are as follows:-

Colapteroblatta nigra (Brunner von Wattenwyl, 1892) - Epilamprinae

Possibly Euthlastoblatta near absimilis (Gurney, 1937) - Blattellidae

Blattellidae

Epilamprinae

The following species are recorded as being found in the Grenadines according to the Blattodea Species File:-

Hemiblabera brunneri Saussure 1869 (Blaberidae, Blaberinae)

Colapteroblatta nigra Brunner von Wattenwyl 1892 (Blaberidae, Epilamprinae)

Epilampra abdomennigrum De Geer 1773 (Blaberidae, Epilamprinae)

Homalopteryx laminata Brunner von Wattenwyl 1892 (Blaberidae, Epilamprinae)

Chromatonotus notatus Brunner von Wattenwyl 1893 (Blattellidae, Blattellinae)

Cariblatta spinicauda Hebard 1929 (Blattellidae, Pseudophyllodromiinae)

Chorisoneura barbadensis Rehn & Hebard 1927 (Blattellidae, Pseudophyllodromiinae)

Euphyllodromia albinervis Brunner von Wattenwyl 1893 (Blattellidae, Pseudophyllodromiinae)

Euphyllodromia lineolata Dalman 1823 (Blattellidae, Pseudophyllodromiinae)

Nahublattella laodamia Rehn & Hebard 1927 (Blattellidae, Pseudophyllodromiinae)

Riatia bipunctulata Brunner von Wattenwyl 1892 (Blattellidae, Pseudophyllodromiinae)

Latindia castanea Brunner von Wattenwyl 1893 (Polyphagidae, Latindiinae)

Henicotyle antillarum Brunner von Wattenwyl 1892 (Blattidae, Blattinae)

Pelmatosilpha marginalis Brunner von Wattenwyl 1893 (Blattidae, Blattinae)

Cheers,

George