MORGAN HEBARD I 93 



plete, short, proximal rami and few, short, complete distal rami; 

 intercalated area \ery narrow and feebly indicated. Subgenital 

 plate of male without styles. Femora with ventral margins all"'' 

 supplied with a single, stout distal spine, all of these spines short, 

 with lateral margins minutely and microscopically serrate; ventro- 

 cephallc margins of cephalic femora fringed with hairs which are 

 regularly placed, the more proximal the longest, the shorter distal 

 hairs spiniform.'*" Tarsi elongate and slender; \entral surface of 

 elongate metatarsus fully occupied by an elongate, attenuate 

 pulvillus, ventral surfaces of three succeeding tarsal joints each 

 fully occupied by a large pulvillus. Arolia small. 



Pycnoscelus surinamensis (Linnaeus) (Plate VIII, figure i.) 

 1767. [Blatta] sun'iuniicjisis Linnaeus, Syst. Nat., Ed. XII, p. 687. [Surinam.] 

 1862. Pycnoscehis ohsciinis Scudder, Proc. Bost.-Soc. Nat. Hist., \"ii, p. 422. [juv. 

 9 (nee. d'); Greenfield, Massachusetts.] (Unquestionably adventive.) 



The additional established synonyms of the present species are 

 Blatta indica Fabricius, Blatta melanocephala Stoll, Blatta punctata 

 Eschscholtz, Blatta corticum Serville and Panchlora celebesa, sub- 

 margiuata and occipitalis Walker, 



The present species is circumtroplcal in distribution, extending 

 its range frequently into subtropical regions. It is distinctive in 

 appearance, the only confusion which could occur with other species 

 found in the United States would be with Leurolestes pallidus^^^ 

 {Naiiphoeta laevigata of authors), which species is only superficially 

 somewhat similar in general appearance. 



Characters of Female J^^ — (Miami, Florida.) Form robust, structure rather heavy. 

 Head flattened; eyes well developed; interocular space equal to that between the 

 pronounced ocellar spots: ocellar areas with surface feebly concave; from occiput 

 to clypeus, minute pits are scattered over the otherwise smooth surface. Maxillary 

 palpi short and stout; third joint flattened cylindrical, nearly as long as fifth; fourth 

 joint slightly shorter than third, with apex truncate and feel)ly oblique, proximal 

 portion very slender and slightly deflexed; fifth (distal) joint enlarged and elongate, 

 distal margin oljlicjue and feebly convex from apex to near base of joint. Pronotum 



•""In this feature, the [)rcscnt genus appears to be separable from all others of the 

 Panchlorinae. 



5'^ These hairs are moderately stout and regular in position; if they were slightly 

 heavier we would use, instead, the term chaetiform spines. 



^'^ See page 161. 



313 We do not give the male characters in the usual position, as that sex is unknown for 

 the regions here under consideration, where the species may prove to be parthenogenetic. 



MEM. AM. ENT. SOC, 2. 



