Showing posts with label van Niekerk. Show all posts
Showing posts with label van Niekerk. Show all posts

Thursday, 20 March 2014

Dichtha inflata, Gerstaecker, 1854 (Probably) and Namibian Independence.

So tomorrow (well, today, if you're further East than Jakarta), is the day that Namibia celebrates its independence from South Africa, fully realised in 1990.

Which I thought I would commemorate by putting up a vaguely Namibian photo, which becomes a touch more complex when I note that I have never actually been to Namibia.

This shouldn't really be a problem - the Caprivi strip takes up a significant chunk of Zambia's southern border, and a fair number of species occur widely in both countries. The issue arose because I wanted something that more specifically said 'Namibia!' - an Icon, if you like. The obvious choices are therefore on Namibia's coat of arms: Oryx (or Gemsbok) and African fish eagle. The former I've only managed to photograph in captivity, and the latter, if I had a good enough picture, would be reserved for Zambian independence.

Another problem was that these are both vertebrates, as have been my last three posts, and I can get a little sick of backbones from time to time.

But then it struck me:

Photographed in New Kasama, Lusaka, Zambia in March 2013, using Olympus E-420 with Zuiko 40-150mm lens and 2 KOOD magnifiers.

This is a member of a group of animals that I really think of when I think of Namibia. In Afrikaans, it's a Toktokkie, one of a number of darkling beetles who tap their abdomens against the ground to attract mates.
Although representatives are found across much of Africa, the association of a number of endemic and near-endemic species with the Namib desert has made them an icon, for me at least, of the region.

Without further ado, then, this is (almost certainly):

Dichtha inflata
Gerstaecker, 1854

However, it's worthy of note that this follows a rather convoluted method of identification, and so I can't actually cite a source... sorry... 

Anyway, provided that I've not starting barking up altogether the wrong tree, D. inflata belongs to: 

 - Molurina  
- Sepidiini     
- Pimelinae     
- Tenebrionidae
- Tenebrionoidea
- Cucujiformia      
- Coleoptera            
- Coleopterida           
- Endopterygota          
- Neoptera                       
- Pterygota                           
- Dicondylia                            
- Insecta                                   
- Hexapoda                                
- Arthropoda                                
- Ecdysozoa                                    
- Protostomia                                    
See also Burtoa nilotica.
- Nephrozoa                                         
- Eumetazoa                                             
- Animalia                                                   
- Eukaryota                                                    

And, with a Happy Birthday to an Independent Namibia, That's All, Folks! 




 

Wednesday, 19 March 2014

Trachylepis striata (Peters, 1844)

I know that World Sparrow Day is supposed to be about Synanthropic (read - urbanisation-tolerant) birds, but I'm just trying to be a bit topical, which is why I'm going to throw in this:

Photographed in Chongwe, Lusaka, Zambia in August 2011, using Olympus E-420 with Zuiko 40-150mm lens and 2 KOOD magnifiers.
Over most of Lusaka, and a hefty portion of central and southern Africa, this is the outdoor lizard of urban habitats, which makes it a little surprising that my dictionary of Chewa and Nyanja has no word for 'Skink', beyond the generic lizard 'Buluzi'. Unlike the formerly successful bleuskops and goggomanikes (tree and ground agamas, respectively, but my spelling is probably wrong) these lizards are quick enough to flee, and to breed, that their populations can survive that nemesis of urban biodiversity, the domestic cat (please, people, keep them under control. Would you let a dog or a hamster wander into other people's gardens and across roads? No, no you would not. So why would you let your cat terrorise everything?).

And yes, that sentence is rather tangled. Parentheses have ruined my fluidity.

Anyhow, this little chappie is:

Trachylepis striata wahlbergi
(Peters, 1869)

And, despite being capable of delivering a sharp pinch with is blunt-toothed jaw, it is harmless. It's also fond of eating just about everything smaller than it, be they houseflies, crickets, ants, spiders, or even small frogs and lizards. This one is part of a population around a dried-out reservoir that co-habits with and occasionally snacks upon the much smaller Trachylepis varia (link is to post from Aug 13). They are generally seen vanishing into cracks in walls within areas where catapults are a common toy (I'll refrain from ranting, but just DON'T give small children projectile weapons. It shows a complete lack of foresight and environmental conscience, among other things), and watching lazily from walls where catapults are rare. They don't cope all that well with plastic buckets being left upright and unchecked close to walls, or smooth-sided cardboard, so be considerate, and check these regularly to avoid finding lizards dehydrated to death. 

To encourage them: ensure that there are raised surfaces, such as logs, rocks or walls, close to extensive hiding places. Most urban gardens provide this anyway. Discourage cats, and do not use pesticides. These little fellows - along with the aforementioned agamas - are actually very good at keeping most pest insects below damaging levels, provided they're not being poisoned. 

Here's a more complete (with the exception of the damaged tail) photograph of Lusaka's most abundant skink: 

Chongwe, Lusaka, Zambia, October 2011, Olympus E-420 with 40-150mm lens and 1 KOOD magnifier.

And with that, let's get on with the taxonomy:


- Lygosominae                    
See also Trachylepis varia.
- Scincidae                            
- Scincomorpha                       
See also Zootoca vivipara.
- Scleroglossa                             
- Squamata                                    
- Lepidosauria                                 
- Lepidosauromorpha                        
- Sauria                                                 
- Diapsida                                                
- Romeriida                                                
- Reptilia                                                       
- Amniota                                                        
- Reptiliomorpha                                                
- Tetrapoda                                                          
- Sarcopterygii                                                        
- Osteichthyes                                                           
- Teleostomi                                                                
- Gnathostomata                                                            
- Vertebrata                                                                     
- Craniata                                                                          
- Chordata                                                                           
- Deuterostomia                                                                     
- Nephrozoa                                                                            
See also Burtoa nilotica, Ligia oceanica, Dicranopalpus ramosus, Hyllus argyrotoxus, Alopecosa barbipes, Enoplognatha ovataArgiope bruennichi, Pardosa amentata, Enallagma cyathigerum, Pseudagrion hageni, Lestinogomphus angustus, Rhyothemis semihyalina, Humbe tenuicornis, Lobosceliana loboscelis, Cyathosternum prehensile, Heteropternis thoracica, Stictogryllacris punctata, Enyaliopsis, Tettigonia viridissima, Sibylla, Pephricus, Grypocoris stysiRanatra, Anoplocnemis curvipes, Synagris proserpina, Vespula germanica, Astata tropicalis, Anthophora furcata, Andrena nigroaenea, Zebronia phenice, Crambus pascuella, Nemophora degeerella, Sphinx ligustri, Laelia robusta, Acada biseriata, Metisella willemi, Anthocharis cardamines, Papilio demodocus, Panorpa germanica, Chloromyia formosa, Senaspis haemorrhoa, Helophilus pendulus, Episyrphus balteatus, Metadon inermis, Diasemopsis meigeniiDolichotachina caudata, Megistocera filipes, Hagenomyia tristis, Phyllobius pomaceus, Otiorhynchus atroapterus, Malachius bipustulatus, Oedemera nobilis, Melolontha melolontha, Cheilomenes lunata, Neojulodis vittipennis, Demetrias atricapillusAnthia fornasinii and Lophyra cf. differens.
- Bilateralia                                                                                 
- Eumetazoa                                                                                   
- Animalia                                                                                         
- Eukaryota                         

And that, folks, is all!