Akalyptoischion polytremetron Hartley, Andrews & McHugh 2008, new species
Creators: name: Hartley, Christopher S.
name: Andrews, Fred G.
name: Mchugh, Joseph V.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Latridiidae
Akalyptoischion
Akalyptoischion polytremetron

description: Akalyptoischion polytremetron Hartley, Andrews & McHugh new species  (Fig. 11, 23)   
 Etymology. Greek for ‘‘many punctured abdomen’’ referring to the many, scattered punctures found on abdominal ventrite I.   
 Description. Length 1.10–1.40 mm. Width 0.35–0.45 mm. Body elongate, subparallel, light orange/brown to dark reddish brown; uniformly setose, setae short; head narrower than anterior pronotum by size of one eye facet, sides slightly sinuate; clypeus narrowing at 45u angle anterior to antennal insertions; head foveae inconspicuous, circular, slightly smaller than eyes; head setation even, setae short and decumbent; head punctation dense, conspicuous on pointed specimen, surface rugose; eyes slightly prominent with 4 facets; tempora size of one eye facet; hind angles 90u; clypeal fovea length on antennomere I, 0.6 width of labrum; labrum anterior margin slightly emarginate; mandible apex pointed with an apical tooth and 4 small subapical serrations, prostheca long; antennae with a 3-segmented club; antennae reach posterior 1/3 of pronotum; antennomere I irregular, wider than long, II large, smaller than I, globular, III small, wider than long, somewhat flattened with a notably blunt basal edge, IV–VIII submonilliform, IX–XI form club, IX large, globular, X parallel sided, subquadrate, XI elongate, subrectangular.   
Pronotum widest anteriorly; anterior angles rounded, lateral margin arcuate, converging posteriorly; lateral margin slightly explanate with,11 small tubercles each bearing a short decumbent seta; median 4/5 raised with short sparse decumbent setae; pronotal foveae shallow, subcircular; pronotal punctation dense.  
Elytra subparallel, lateral flange not prominent, present in anterior 1/2 only; 6 striae; humeral angle evenly rounded; strial interspaces 3 and 5 slightly raised; short decumbent setae present on each interspace; epipleuron complete, narrowing posteriorly.  
Ventral surface evenly setose; submental fovea with several large punctures, irregularly sized and spaced; ventral head punctation even over whole head, punctures large; gular punctation even, punctures large; prosternum evenly punctate; mesosternum without sharp carinae; metasternum with a single fovea between and posterior to each mesocoxa, a narrow, arcuate fovea anterior to each metacoxa, and median surface evenly punctate with small scattered punctures; abdominal ventrite I with 2 large, distinct, circular foveae at anterior corners of intercoxal process, a transverse fovea posterior to each metacoxa, and median surface irregularly punctate with small scattered punctures; ventrites II–IV may be very sparsely punctate, basal depressions normal.  
 Material Examined. HOLOTYPE, USA: label data: ‘‘ARIZ: Coconino Co., Grand Canyon Nat. Pk. X-14-85 ex bark/ground cover M. W. Sanderson’ ’ (CDAE).   
PARATYPES, USA, same data as holotype, 1 on slide (4, CDAE).  
Additional Material, ‘‘ ARIZONA: Cochise Co. Chiricahua Mts. elev. 5,500 ft Oct. 5 1968 ’’ (4, CDAE); ‘‘ Arizona Chiricahua Mts., 8,000 ft. Oct. 6 1974 K. Stephan leg.’’ (1, CDAE); ‘‘ ARIZONA: Cochise, Co. Chiricahua Mts. near Portal April 28 1968 ’’ (3, CDAE); ‘‘ ARIZONA: St. Catalina Mts elev. 7,000 ft April 5 1969 ’’ (1, CDAE); ‘‘ ARIZONA: St. Catalina Mts elev. 8,000 ft April 12 1969 ’’ (1, CDAE); ‘‘ ARIZONA: St. Catalina Mts elev. 7,000 ft April 14 1968 ’’ (2, CDAE); ‘‘ ARIZONA: St. Catalina Mts elev. 8,000 ft April 21 1968 ’’ (1, CDAE); ‘‘ ARIZONA: St. Catalina Mts elev. 8,000 ft June 16 1968 ’’ (5, CDAE).  
 Remarks. This species is unique in its many punctured abdominal ventrite I (Fig. 11). These characteristic punctures can only be seen on cleared and slidemounted specimens. This species closely resembles A. delotretos, which differs by lacking punctures on abdominal ventrite I.
description: Published as part of Hartley, Christopher S., Andrews, Fred G. & Mchugh, Joseph V., 2007, A Taxonomic Revision Of The Genus Akalyptoischion Andrews (Coleoptera: Latridiidae), pp. 1-50 in The Coleopterists Bulletin (mo 6) (mo 6) 61 on pages 41-42, DOI: 10.1649/0010-065x(2008)61[1:atrotg]2.0.co;2, http://zenodo.org/record/4912035