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FAMILY VAEJOVIDAEGenus ParavaejovisGenus ParuroctonusGenus PseudouroctonusGenus SerradigitusGenus SmeringerusGenus SyntropisGenus UroctonitesGenus UroctonusGenus Vaejovis

      eusthenura group
           Vaejovis bilineatus
           Vaejovis coahuilae
        Vaejovis confusus
       Vaejovis diazi diazi
      Vaejovis diazi transmontanus
       Vaejovis eusthenura
       Vaejovis flavus
      Vaejovis galbus
      Vaejovis glabrimanus
      Vaejovis globosus
       Vaejovis gravicaudus
        Vaejovis hoffmanni hoffmanni
       Vaejovis hoffmanni fuscus
      Vaejovis punctatus punctatus
       Vaejovis punctatus spadix
      Vaejovis punctatus variegatus
       Vaejovis puritanus
      Vaejovis spinigerus
       Vaejovis viscainensis
        Vaejovis vittatus
        Vaejovis waeringi
       Vaejovis waueri
      intrepidus group
        Vaejovis intrepidus intrepidus
        Vaejovis intrepidus atrox
        Vaejovis intrepidus cristimanus
      Vaejovis occidentalis
      Vaejovis subcristatus
      mexicanus group
        Vaejovis carolinianus
        Vaejovis cashi
        Vaejovis chamelaensis
      Vaejovis chiapas
       Vaejovis chisos
        Vaejovis deboersi
        Vaejovis dugesi
        Vaejovis feti
        Vaejovis franckei
       Vaejovis granulatus
      Vaejovis jonesi
       Vaejovis lapidicola
      Vaejovis maculosus
       Vaejovis mexicanus mexicanus
      Vaejovis mexicanus smithi
      Vaejovis monticola
      Vaejovis nigrofemoratus
        Vaejovis pattersoni
       Vaejovis paysonensis
      Vaejovis pusillus
       Vaevovis rosssmanni
      Vaejovis setosus
      Vaejovis sprousei
      Vaejovis tesselatus
      Vaejovis vaquero
        Vaejovis vorhiesi
      nitidulus group    
      Vaejovis curvidigitus
      Vaejovis davidi
      Vaejovis decipiens
      Vaejovis gracilis
      Vaejovis intermedius
      Vaejovis janssi
      Vaejovis kochi
      Vaejovis mauryi
      Vaejovis minckleyi
      Vaejovis mitchelli
      Vaejovis nigrescens
      Vaejovis nitidulus
      Vaejovis norteno
      Vaejovis peninsularis
      Vaejovis platnicki
      Vaejovis pococki
      Vaejovis rubrimanus
      Vaejovis solegladi
      punctipalpi group
      Vaejovis bruneus bruneus
      Vaejovis bruneus loretoensis
      Vaejovis bruneus villosus
      Vaejovis cazieri
      Vaejovis crassimanus
      Vaejovis hirsuticauda
      Vaejovis insularis
      Vaejovis magdalensis
      Vaejovis punctipalpi punctipalpi
      Vaejovis punctipalpi barbatus
      Vaejovis punctipalpi cerralvensis
      Vaejovis russelli
      Vaejovis sonorae
      incertae sedis
      Vaejovis acapulco
      Vaejovis cisnerosi
           Vaejovis kuarapu
      Vaejovis mumai
      Vaejovis nayarit
      Vaejovis pequeno
      Vaejovis spicatus
      Vaejovis zihuatanejensis
          "Vaejovis" flavescens

Genus Vejovoidus

Catalog of the VaejovidaeVaejovid  Bibliography

Why Study the Vaejovidae?

Vaejovis glabrimanus Sissom & Hendrixson 2005

Vaejovis glabrimanus Sissom & Hendrixson, 2005: 35-39, figs. 1-12.

TYPE(s):  Vaejovis glabrimanus Sissom & Hendrixson, 2005: - Adult male holotype taken from 4.9 mi N La Ascension, Nuevo Léon, México (24°19' N, 99°54' W) on 18 July 1972 by E.A. Liner, R.M. Johnson, and A.H. Chaney; deposited in the Florida State Collection of Arthropods, Gainesville, Florida.

Original description:
Vaejovis glabrimanus Sissom & Hendrixson, 2005: 35-39, figs. 1-12

"Description.—The following description is based on the holotype male; some meristic and morphometric characters of the paratype male are provided in parentheses.
. Base color light yellow-brown, almost immaculate. Tergites with paired vestigial dusky p atches along posterior margin. Metasomal segments with carinae yellow orange. Telson yellowish; aculeus dark reddish-brown. Pedipalps: femur and tibia yellow, lighter than body; chela manus yellow, fingers orange-red with underlying dusky pigment; denticles of dentate margin dark brown. Legs pale yellow with some faint dusky markings; tarsi yellowish. Venter: coxosternal region yellowish; pectines yellowish-white; sternites light yellow.
. Carapace approximately as long as wide. Anterior margin essentially straight, with six conspicuous setae; median notch faint, shallow. Entire carapacial surface densely granular. Mesosoma. Tergites I–IV: Median carina on I–II faint, on II–VI weak, smooth to granular; lateral carinae present posteriorly on II–VI, weak, granular. Tergite VII: Median carina weak, smooth, present on anterior one-third; submedian and lateral carinae strong, granulose. Pectinal tooth count (l/r) 15/? (17/17). Sternites III–VI smooth, moderately setose. Sternite VII acarinate.
Metasoma (Fig. 1). Segment I slightly wider than long, II–III slightly longer than wide, V 2.37 (2.40) times longer than wide. Segments I–IV: Dorsolateral carinae on I–III strong, serrate; on IV strong, crenulate; terminal denticles on I–III distinctly enlarged, spiniform. Lateral supramedian carinae on I–III strong, irregularly serrate; on IV moderate, irregularly serrate; terminal denticles distinctly enlarged, spiniform on I–III. Lateral inframedian carinae on I complete, strong, irregularly serrate; on II present only on posterior third, crenulate to serrate; on III represented by only three or four medium-sized granules; on IV absent. Ventrolateral carinae on I moderate, irregularly crenulate; on II–IV moderate to strong, crenulate. Ventral submedian carinae on I–III weak, smooth; on IV weak, smooth anteriorly, serrate posteriorly. Intercarinal spaces mostly smooth, lustrous. Segment V: Dorsolateral carinae moderate, granular on anterior half of segment. Lateromedian carinae present on anterior third, weak, granular. Ventrolateral and ventromedian carinae moderate, crenulate. Intercarinal spaces mostly smooth, lustrous. Metasomal I–IV carinal setation (l/r): dorsolaterals, 0/0:2/2:2/2:4/4; lateral supramedians, 1/1:3/3:3/3:4/4; lateral inframedians, 2/2:0/0:0/0:0/0; ventrolaterals, 2/3:4/4:4/4:4/4; ventral submedians, 3/3:3/3:4/3:4/5 (segment III with unpaired seta offset medially from carina; segment IV with left seta of pair 2 offset medially from carina). Setation of metasomal segment V: dorsolaterals, 7/7; lateromedians, 4/5; ventrolaterals, 10/10.
Telson (Fig. 1). Dorsal surface flattened, smooth; ventral surface almost smooth, without a subaculear tubercle; aculeus much shorter than vesicle.
Pedipalps. Orthobothriotaxic, Type C (Vachon 1974). Femur (Fig. 2) tetracarinate. Dorsointernal, dorsoexternal, and ventrointernal carinae strong, granulose. Ventroexternal carina moderate, with irregularly spaced, large rounded granules. Internal face with large conical granules; dorsal face shagreened. Ratio of femur length/width, 2.55 (2.52). Patella (Fig. 3) tetracarinate. Dorsointernal carina strong, granulose. Ventrointernal carina moderate, granulose. Dorsoexternal carina weak to moderate, smooth. Ventroexternal carina weak, smooth. Internal face with moderate basal tubercle and longitudinal series of 6–7 large granules. Surfaces smooth. Ratio of patella length/width, 2.47 (2.41). Chela (Figs. 4–7): carinae of palm (Figs. 4–5) obsolete or at most, vestigial and smooth. Dentate margin of fixed finger (Fig. 6) with primary row of denticles divided into six subrows by five larger granules; six inner accessory granules of which all but distal-most paired with larger granule in primary row; trichobothrium it slightly basal to sixth inner accessory granule. Dentate margin of movable finger on right pedipalp chela (Fig. 7) with primary denticle row broken up into six subrows by five enlarged granules; apical row consisting of one small granule; seven inner accessory granules, of which distal granule not paired with larger granule in primary row; basal inner accessory granule distinctly basal to corresponding granule in primary row. Dentate margin of movable finger on left pedipalp chela anomalous, with primary row broken into four subrows by three enlarged granules; distalmost subrows fused; only three inner accessory granules. Slight recess indicated on both fingers such that a distinct gap is visible proximally when the fingers are closed (Fig. 5). Ratio of chela length/width 2.94 (3.06); of movable finger length/chela width 1.60 (1.64); of fixed finger length/carapace length ratio 0.56 (0.53). Legs. Tarsomere I on legs I–II with one retrolateral and two ventrolateral rows of spinules; ventral rows complete, interrupted at irregular intervals by large, dark, stiff setae. Retrolateral row present on distal one-half, interrupted by one or two spines. Tarsomere I spinule rows rudimentary on legs III–IV, but with stiff setae present. Tarsomere II on all legs with single ventromedian row of spinules, procurved basally, terminating distally between with 2–3 pairs of medium-sized spines (Fig. 8).
(Figs. 9–12). Hemispermatophore with broad flange on ectal edge of distal lamina (Figs. 9, 11); capsular region as in Fig. 10; "sperm plug" of capsular region with 14 spines (Fig. 12).
Measurements of Male Holotype (mm):
Total L, 40.85; carapace L, 5.00; mesosoma L, 10.50; metasoma L, 19.10; telson L, 6.25. Metasomal segments: I L/W/D, 2.55/2.70/2.15; II L/W/D, 3.05/2.65/2.15; III L/W/D, 3.25/2.65/2.15; IV L/W/D, 4.10/2.55/2.05; V L/W/D, 6.15/2.60/1.90. Telson: vesicle L/W/D, 4.45/2.45/2.10; aculeus L, 1.80. Pedipalps: femur L/W, 3.70/1.45; patella L/W, 4.20/1.70; chela L/W/D, 7.05/2.40/2.45; fixed finger L, 2.80; movable finger L, 3.85.
Measurements of Male Paratype (mm):
Total L, 42.00 (estimated, due to broken aculeus); carapace L, 5.20; mesosoma L, 11.00; metasoma L, 19.65; telson L, ??. Metasomal segments: I L/W/D, 2.60/3.00/2.30; II L/W/D, 3.10/2.80/2.30; III L/W/D, 3.30/2.70/2.30; IV L/W/D, 4.30/2.60/2.20; V L/W/D, 6.35/2.65/2.05. Telson: vesicle L/W/D, 4.60/2.55/2.10; aculeus L, ?. Pedipalps: femur L/W, 3.65/1.45; patella L/W, 4.10/1.70; chela L/W/D, 7.20/2.35/2.45; fixed finger L, 2.75; movable finger L, 3.85.
. The paratype male did not differ significantly from the holotype in any of the above-mentioned characters. The setation of the carinae of metasomal segments I–IV (l/r) in the paratype is as follows: dorsolaterals, 2/2:2/2:4/4:5/5; lateral supramedians, 1/2:3/4:4/4:4/4; lateral inframedians, 3/2:1/2:1/1:1/1; ventrolaterals, 3/3:4/4:4/4:4/4; ventral submedians, 3/3:4/3:4/3:5/5 (segments II and III each with unpaired seta slightly offset from the ventral submedian carinae; segment IV with setal pairs 2 and 4 slightly offset medially from the ventral submedian carinae). For metasomal segment V (l/r), the setation of the paratype is: dorsolaterals, 9/10; lateromedians, 4/5; ventrolaterals, 10/10."

Subsequent Accounts

Distribution: NORTH AMERICA. México (Coahuila, Nuevo León).

Published Records: Paratype male taken from 10.8 mi S, 0.1 mi E Arteaga at Los Pinos, Coahuila, México (25°17' N, 100°50' W) on 17 July 1975 by E.A. Liner et al.; also deposited in the Florida State Collection of Arthropods.

Notes: In possessing a setose metasoma and essentially acarinate pedipalp chelae, Vaejovis glabrimanus sp. nov. is most similar to V. coahuilae and V. globosus. It may be distinguished from V. coahuilae by (1) the presence of six, rather than five, subrows of denticles on the cutting margin of the pedipalp chela fixed finger; (2) the absence of an elaborate dusky pattern on the carapace, dorsum, metasoma, and appendages; (3) the lack of carinae on sternite VII (in V. coahuilae, granular lateral carinae are present); and (4) larger body size, with adult males reaching approximately 40–42 mm in length (adult males of V. coahuilae are rarely about 35 mm in length). It may be distinguished from V. globosus by (1) the presence of six, rather than five, subrows of denticles on the pedipalp chela fixed finger; (2) the presence of prominent scalloping in the chela fingers in the male; (3) the absence of dusky markings on the dorsum and metasoma; (4) more swollen pedipalp chelae in the male (chela length/width ratios: V. glabrimanus, 2.94–3.06; V. globosus, 3.29–3.79); and (5) its larger body size (males of V. globosus range only to about 25–30 mm). In body size and coloration, the new species is also superficially similar to V. russelli Williams. As is typical of the punctipalpi group, males of V. russelli have distinctly carinate, often granular pedipalp chelae and fewer metasomal setae (e.g., segment V in V. russelli typically has only 4–7 setae on the metasomal dorsolateral and ventrolateral carinae, whereas V. globosus has 7–10 on the dorsolaterals and 10 on the ventrolaterals). Additional characters for the punctipalpi group are provided by Williams (1971b, 1980).The specific epithet is Latin for "smooth hand" and refers to the lack of distinct carinae on the pedipalp chelae.

Sissom and Hendrickson 2005:39,40,41 -  Key to the Vaejovid Scorpion Species of Northeastern México  - Dorsolateral carinae of metasoma (at least on segments I–III) with an enlarged terminal denticle; legs I–III with irregular setation (except in V. globosus, which has setal combs, – but has the enlarged terminal denticle on the metasoma); Trichobothria ib and it situated more distally, at the level of the sixth inner accessory denticle or beyond; Ventral submedian carinae of metasoma developed and usually granular, at least on segments III and IV; Metasoma setose (e.g., metasoma V ventrolateral carinae with 9–12 setae); pedipalp chelae of adult male acarinate or at most feebly carinate; Cutting margin of pedipalp chela fixed finger with 6 subrows of denticles; underside of metasoma uniformly yellowish ..................................Vaejovis glabrimanus sp. nov.


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