Anogdus sculpturatus ( Fall, 1910 )

Peck, Stewart B. & Cook, Joyce, 2013, A revision of the species of Anogdus LeConte of the United States and Canada (Coleoptera: Leiodidae: Leiodinae: Leiodini), Insecta Mundi 2013 (290), pp. 1-27 : 12-13

Anogdus sculpturatus ( Fall, 1910)

( Fig. 15, 16 , 34 )

Anisotoma sculpturata Fall, 1910: 6 . Holotype female in MCZC, type number 24023, designated by Daffner 1988: 284, seen by us. Type locality: USA: ARIZONA: Flagstaff.

Anogdus sculpturatus (Fall) ; Daffner 1988: 282.

Diagnosis. Length (pronotum + elytra) = 1.82–2.22 mm; greatest width = 1.10= 1.40 mm. Head punc- tures moderately fine, irregularly spaced. Antennal club of moderate width; antennomere 7 distinctly to slightly narrower than 9 and 10; antennomere 8 narrow and disk-like; apical antennomere slightly narrower than 9 and 10. Sides of pronotum rounded, posterior angles broadly obtuse. Pronotal punc- tures fine, irregularly spaced. Elytral strial punctures closely spaced and bearing short, semi-erect, pale setae; interstriae with irregular transverse microsculpture which gives the surface a sculptured texture, and with punctures bearing short, appressed setae; elytral epipleura inconspicuously setose. Metasternal anterior margin with a row of round, deep punctures; punctures not larger in diameter than the shallow lateral punctures of the metasternum. Protarsi and mesotarsi of male bearing white setae ventrally. Male mesotibia curved; mesotibial process broad at base, triangular, shorter than large tibial spine. Metafemur slender, male with a broad, triangular expansion near the apex of the lower margin. Abdominal sternite III with a row of indistinct, moderately small punctures at anterior margin; sternites IV–VII each with a row of larger punctures near anterior margin. Median lobe of aedeagus ( Fig. 15, 16 ) elongate, evenly curved dorsoventrally, with apex rounded in dorsal view. Para- meres slender, not expanded apically, reaching near to apex of median lobe. Internal sac ( Fig. 15, 16 ) with elongate flagellum.

Remarks. A male specimen identified by H. Daffner as this species (in CNCI) lacks elytral microscu- lpture and setae, and the partly everted internal sac lacks the distinctive flagellum we have found to be characteristic of this species.

Distribution. United States. Known only from Arizona ( Fig. 34 ). Previously published distributional records in Daffner (1988: 282): USA: ARIZONA: Coconino Co., Flagstaff; Pima Co., Santa Catalina Mts., Bear Canyon.

New material examined (n=2). USA: ARIZONA: Pima County, St. Catalina Mts., Bear Cyn. , 1.VIII.1972, K. Stephan (2, FSCA).

Seasonality. Adults are known from the months of July and August, suggesting that the species is active in the rainy summer months.

Bionomics. The known habitats are mixed forests in canyons.

Figures

Figure 34. Western North American distribution of Anogdus fusciclavus (squares), A. insolitus (inverted triangles), A. sculpturatus (crosses), A. cochise (triangles), A. huachuca (circles).

Figures 1–18. Aedeagi, dorsal and lateral, of Anogdus species. 1, 2) A. capitatus. 3, 4) A. dissimilis. 5, 6) A. fusciclavus. 7, 8) A. insolitus. 9, 10) A. obsoletus. 11, 12) A. potens. 13, 14) A. puritanus. 15, 16) A. sculpturatus. 17, 18) A. secretus. Scale line = 0.30 mm for capitatus, dissimilis, fusciclavus, obsoletus, puritanus, sculpturatus, secretus; 0.35 mm for insolitus, potens.