Pseudojulus Bollman, 1887

Shelley, Rowland M., 2007, Rediagnoses of the milliped genera Pseudojulus Bollman, 1887, and Arvechambus Causey, 1963, in the southeastern USA; description of P. mississippiensis, n. sp. and proposal of the subtribe Pseudojulina (Julida: Parajulidae: Parajulinae: Aniulini), Zootaxa 1541, pp. 1-16 : 4-5

Genus Pseudojulus Bollman, 1887

Parajulus (Pseudojulus) Bollman, 1887 a:227 ; 1887 b:38.

Pseudoiulus: Cook, 1895:6. Silvestri, 1896:138, 177.

Pseudojulus: Chamberlin & Hoffman, 1958:141 . Jeekel, 1971:174. Hoffman, 1980:108; 1992:14–16; 1999:161–162. Shelley, 2001:243; 2004:192–194.

Georgiulus Hoffman, 1992:9 ; 1999:154. Shelley et al., 2000:46. Shelley, 2001:243.

Type species. Parajulus (Pseudojulus) obtectus Bollman, 1887 a, by subsequent designation of Bollman (1887 b).

Diagnosis (adapted from that of Shelley (2004)). Moderate-size to large-bodied Pseudojulina with lateral but not medial lobes on 8th sterna, 7th pleurotergite not modified; posterior gonopod with prefemoral process, without accessory prefemoral process. Anterior gonopod sternum moderately large and subrectangular, without lobes or projections; coxae fused basally into plate-like dorsal "shelf" and extending ventrad caudally into pair of discrete or fused posterior syncoxal lobes or laminae, with variable lobes and lateral syncoxal processes; telopodites distally rounded and clavate, usually with subcaudal lobes. Posterior gonopods positioned caudal to ag posterior syncoxal lobes/laminae, not situated between telopodites; prefemoral processes long & slender, lying either caudal or anterior to telopodite, accessory prefemoral processes absent; telopodites long and slender, often flared distad. Cyphopodal gynaspis prolonged, extending below ventral segmental margin.

Distribution. Southcentral North Carolina (the southern fringe of Gaston County (Co.) in the Piedmont Plateau) to northern Florida from the Atlantic Coast to the western Panhandle, continuing westward and northwestward through coastal Alabama to northcentral Mississippi. Pseudojulus occupies all six states of the subtribal distribution but does not range southward into peninsular Florida.

Species. Five, but more are anticipated within the known generic range.

Remarks. Bollman (1893) stated that Pseudojulus represented only a "certain stage of development" and placed the name in synonymy under Parajulus Humbert & Saussure, 1869 . However, it was resurrected two years later by Cook (1895).

As shown in Fig. 1 , Pseudojulus is known from only one species and one locality in Mississippi, Alabama, and North & South Carolina. Having collected extensively in both Carolinas, I am reasonably confident that its distribution and representation in North Carolina is limited and does not extend much farther north than the border region of Gaston Co.; it should be expected throughout central South Carolina, where it has not been collected. The North Carolina and Georgia localities of P. c a ro l i n e n s i s are at essentially the same longitude, and the species is expected within the hiatus in South Carolina. Generic records in Mississippi and Alabama, however, are so distant from each other and in such different physiographic regions that one or more species probably occupy the gap. Pseudojulus can be anticipated in coastal Mississippi and northward in Alabama to the Piedmont and possibly even the Cumberland Plateaus. The Mississippi and North Carolina localities, and the northernmost ones in Georgia, are far enough from the coast to suggest that Birmingham probably lies within the generic range; consequently, more species of Pseudojulus are anticipated in Mississippi and Alabama.

Figures

FIGURE 1. Distribution of the Pseudojulina. Asterisk, P mississippiensis; solid stars, P. obtectus; dots, P. paynei; triangles, P. carolinensis; inverted triangle, P. coastalis; open squares, Arvechambus hummi; open star, Arvechambus weemsi; star in dot, Arvechamboides ocala. Some symbols of Arvechambus hummi represent more than one closely proximate localities.